Denver CO Northwest Metro / Boulder County Landlord Guide 2026 Colorado HB 21-1117 (April 2021) repealed the statewide rent control preemption — but NO northwest Denver metro or Boulder County city has enacted any local ordinance. The critical issues aren’t rent caps: they’re the Jefferson County courthouse paradox (Golden handles all Lakewood, Arvada, Wheat Ridge, and Westminster-west evictions), the Broomfield consolidated city-county advantage (courthouse in-city; created from four counties in 2001), the Erie Boulder/Weld county split (wrong county = dismissal; 80516 ZIP spans both counties; verify every parcel at county assessor), and the Longmont courthouse commute (18 miles south to Boulder via the Diagonal Highway). Boulder County’s political climate is rent-stabilization-aware — elevated risk vs. Jefferson and Weld counties. CRS §38-12: no deposit cap; 60-day return (30 days with written demand); 3× willful wrongful withholding + attorney fees. HB 21-1121: 10-day pay-or-quit (genuine cure right). SB 21-173: 21-day notice for month-to-month termination.

1. Colorado HB 21-1117 — No Rent Control; Boulder County Political Risk Profile

Colorado’s landlord-tenant landscape changed fundamentally in April 2021, and understanding the change — and its local implications — is essential for any investor in the northwest Denver metro corridor.

From 1994 to 2021, Colorado Revised Statutes §38-12-301 — enacted by voters as Proposition 10 in 1994 — prohibited every Colorado city and county from enacting any local rent control ordinance whatsoever. This statewide preemption was among the most comprehensive in the United States.

In April 2021, Governor Jared Polis signed Colorado House Bill 21-1117, which repealed §38-12-301 and returned local rent control authority to Colorado municipalities for the first time in 27 years. Colorado SB 23-184 (2023) subsequently further modified the preemption framework.

Despite having had this authority for over five years as of 2026, NO Colorado city or county has enacted any local rent stabilization ordinance, rent increase guideline, rent board, or rent control measure of any kind. This holds for every community in the northwest Denver metro corridor: Golden, Broomfield, Longmont, and Erie have each declined to act.

Why Boulder County Warrants a Different Risk Assessment

Not all Colorado rent-control risk profiles are equal. The northwest metro corridor spans four different governing counties, and their political environments differ materially:

• Jefferson County (Golden, Arvada, Wheat Ridge, Lakewood, Littleton west) — politically moderate-to-conservative Front Range county. City councils have not discussed rent regulation. Risk: low.
• City and County of Broomfield (Broomfield) — unique consolidated jurisdiction. Boulder Valley School District political culture, but a more tech-sector-oriented city council. Risk: low to moderate. Monitor if Boulder County enacts first.
• Boulder County (Longmont, west Erie) — home to the City of Boulder, which enacted a Rental Housing License ordinance (2022) and Just Cause Eviction ordinance. Boulder County Commissioner discussions have referenced rent stabilization. No binding county or city rent cap exists anywhere in Boulder County as of 2026, but the political environment is materially more favorable to tenant protections. Risk: elevated. Monitor Longmont city council sessions.
• Weld County (east Erie) — one of Colorado’s most politically conservative counties. The county seat (Greeley) has no rent regulation discussions. Risk: very low.

The TABOR Constitutional Layer

Colorado’s Taxpayer’s Bill of Rights (TABOR), Article X, Section 20 of the Colorado Constitution, creates an additional practical obstacle for any municipality considering a rent ordinance with administrative fees or charges. Any rent program that requires landlord registration fees, enforcement administration charges, or any mandatory government charge that could be characterized as a tax may require citywide voter approval before it can be collected. City attorneys in Denver and Front Range communities have cited this as a structural barrier to self-funding rent programs without a ballot measure. For northwest metro investors: no rent regulation exists anywhere in this corridor, and even if political will materialized in Longmont, TABOR adds a voter approval requirement that makes enactment slower.

What “No Rent Control” Means in Practice

For Golden, Broomfield, Longmont, Erie, and every other city in this corridor: rent increases may be applied by any amount at lease expiration, or with the appropriate advance notice period (21 days for month-to-month per SB 21-173) for mid-tenancy adjustments. No government notification, filing, approval, or percentage cap applies. No rent roll registration is required. No annual registration fee is due. The only Colorado-wide restrictions are the standard notice periods, the deposit return rules, and the eviction procedures described below.

2. Golden — Jefferson County Courthouse and Triple Demand Anchor

Golden, Colorado (population ~21,000) punches far above its size in the Colorado rental market. It is the Jefferson County seat, the location of the only Jefferson County eviction courthouse, and the host city for three distinct and durable professional rental demand anchors: Colorado School of Mines (CSM), the National Renewable Energy Laboratory (NREL), and the Molson Coors / Coors Brewing World Brewing Campus.

Golden as Jefferson County’s Only Courthouse City

Golden has been Jefferson County’s permanent county seat since 1867 — predating the incorporation of virtually every Jefferson County city by decades. The Jefferson County Combined Court at 100 Jefferson County Pkwy, Golden CO 80401 handles all civil, criminal, and eviction proceedings for Jefferson County, including all Forcible Entry and Detainer (FED) residential evictions.

The practical implication for neighbors: every Jefferson County property in the Denver metro sends landlords to Golden for every eviction, small claims, and deposit dispute. Lakewood (~120,000 pop; ~8 miles east to Golden), Arvada (~120,000 pop; ~12–18 miles west to Golden), Wheat Ridge (~33,000 pop; ~12–15 miles west to Golden), and West Westminster (~22,000 Jefferson County portion; ~11 miles south to Golden) all share the same single courthouse. Golden landlords, by contrast, file in their own city.

Colorado School of Mines — Engineering University Rental Demand

Colorado School of Mines (CSM), located at 1500 Illinois St, Golden CO 80401, is a specialized public research university ranking among the top engineering schools in the United States, with particular strength in earth resources, energy, materials science, and applied mathematics. Its approximately 5,500 undergraduate and graduate students, combined with approximately 1,200 faculty, staff, and administration, create year-round near-campus rental demand.

Near-campus rent ranges (within ~8 blocks): studio $800–$1,200/month; 1BR $950–$1,500/month; shared house per-bedroom $600–$900/month. Properties within 2–3 blocks of campus command premiums of 10–20% over those 10+ blocks away.

CSM student tenancy practices that differ from general market:

• Parental guarantors are standard for undergraduate leases at CSM. Ensure your guarantee language survives the student’s graduation, withdrawal, transfer, or departure mid-lease. Some parents negotiate a guarantee tied only to their child’s enrollment; negotiate this before signing.
• Graduate students (approximately 25–30% of CSM enrollment) are typically 25–35 years old, have fellowship or TA stipends ($25,000–$45,000/year + tuition waiver), and are generally more reliable tenants than undergrads. Two-year leases are common in the graduate segment.
• CSM students know tenant rights. CSM emphasizes analytical rigor — expect methodical documentation of move-in conditions, careful review of deposit deduction itemizations, and willingness to use Colorado small claims court for disputed deposits. Photograph and document every unit condition at move-in with the tenant present.
• Summer demand is real at CSM (unlike purely undergraduate schools). Research programs and summer coursework maintain occupancy; vacancy risk peaks only in August when graduating seniors leave and new freshmen arrive.

National Renewable Energy Laboratory (NREL) — Federal Research Workforce

The National Renewable Energy Laboratory (NREL), located at 15013 Denver West Pkwy, Golden CO 80401, is the U.S. Department of Energy’s primary national laboratory for renewable energy and energy efficiency research. With approximately 3,000+ research staff — the majority holding PhD degrees in physics, chemistry, electrical engineering, materials science, or related disciplines — NREL’s workforce earns approximately $70,000–$180,000+ per year. Post-doctoral researchers earn $55,000–$75,000.

NREL staff rental behavior: most NREL researchers rent for 1–3 years upon arrival at Golden while evaluating the local housing market before purchasing. They are typically highly documentation-conscious: expect move-in inspection forms, written maintenance requests, and written communication about all lease matters. Properties that are professionally managed and document-oriented attract and retain NREL staff more reliably than informally managed units.

The NREL campus sits on the Denver West business park corridor, approximately 2–3 miles east of central Golden. Properties in the Denver West / Colorado Mills area benefit from both NREL workforce proximity and I-70/CO-470 access.

Molson Coors / Coors Brewing — World’s Largest Single-Site Brewery

Molson Coors Beverage Company’s Golden brewing campus (311 10th St, Golden CO 80401) claims to be the world’s largest single-site brewery by production volume. The facility employs approximately 2,000–3,000+ direct employees in production, quality control, engineering, logistics, and corporate functions. Golden’s identity is inseparably tied to Coors — the brewery has operated on Clear Creek since 1873, and the company was founded in Golden.

Coors employees at all levels are a primary source of Golden rental demand, particularly the production and logistics workforce (hourly wages $28–$45/hour equivalent) who prefer to live close to the plant and who generate stable, long-term rental demand. Higher-level Coors corporate employees often seek larger SFR units in Golden’s residential foothills zones or in the Arvada adjacency.

Golden’s Geographic Constraint and Structural Vacancy Floor

Golden’s rental market operates with structurally low vacancy due to geography that cannot be easily overcome by new construction. The Flatirons and Table Mountain rise to the west and south. Clear Creek Canyon provides no expansion corridor. Denver metro growth presses in from the east. The result: Golden has very limited developable land within city limits, and the pipeline of new multifamily units is thin compared to demand. Landlords in Golden rarely face sustained vacancy — but must price competitively against newer Arvada/Wheat Ridge units that offer more square footage for similar rent.

3. Broomfield — Colorado’s Only Consolidated City-County

Broomfield holds a structural uniqueness in Colorado government and in the Denver metro rental market: it is Colorado’s only consolidated city-county, simultaneously an incorporated city and a separate county.

The Creation of Colorado’s 64th County

Broomfield residents approved a constitutional amendment by ballot measure in November 1998, which took effect November 15, 2001, creating the City and County of Broomfield as Colorado’s 64th county. The consolidation carved territory from four surrounding counties: Adams County (east), Boulder County (northwest), Jefferson County (south), and Weld County (north).

Before consolidation, Broomfield residents filed evictions in four separate courthouses depending on which county their specific parcel fell within. Post-consolidation, all Broomfield evictions file at a single in-city courthouse: Broomfield Combined Court, 17 DesCombes Dr, Broomfield CO 80020. This is a meaningful operational simplification that landlords in neighboring Adams County, Jefferson County, and Boulder County communities do not enjoy.

Ball Aerospace / BAE Systems Space — Broomfield’s Defining Employer

Ball Aerospace & Technologies Corp., headquartered at 1600 Commerce St, Broomfield CO 80021, was acquired by BAE Systems plc (the UK-based defense and security group) for approximately $5.55 billion, with the transaction closing in February 2024. Ball Aerospace now operates as BAE Systems Space, a division of BAE Systems Inc.

The Broomfield campus employs approximately 5,000+ engineers, scientists, and program staff working on some of the most technically demanding aerospace programs in the U.S. government portfolio:

• GPS III Navigation Technology Satellite (NTS-3): GPS III Block III satellites; BAE Systems Space is the primary contractor for the satellite bus and payload integration.
• GOES-R Series Weather Satellites (GOES-16, GOES-17, GOES-18): NOAA’s primary operational weather satellite constellation, providing continuous weather monitoring for North America; Ball/BAE built the primary imaging instruments (ABI — Advanced Baseline Imager).
• James Webb Space Telescope instruments: Ball Aerospace built the NIRCam (primary science camera) and contributed to FGS/NIRISS.
• Various classified DoD and intelligence community programs.

Employee compensation: mid-level aerospace engineers earn $90,000–$160,000; senior program managers and principal scientists earn $160,000–$350,000+. The Interlocken corridor tech worker is a premium renter — typically 30–45 years old, household income $120,000–$300,000+, expecting newer units with US-36 access for the RTD Flatiron Flyer commute or direct bike/bus access to Broomfield campus.

Vail Resorts Inc. — Global Ski Resort HQ in Broomfield

Vail Resorts Inc., the world’s largest mountain resort operator (Epic Pass; 40+ resorts globally including Vail, Breckenridge, Keystone, Park City, and Whistler), maintains its global corporate headquarters at 390 Interlocken Crescent, Broomfield CO 80021. The Broomfield HQ employs approximately 1,200 corporate employees in finance, legal, marketing, technology, and executive functions. Corporate compensation ranges from $70,000–$120,000 for mid-level staff to $200,000–$800,000+ for vice presidents and executives.

Vail Resorts corporate renters in Broomfield represent a distinct outdoor-lifestyle-oriented demographic: younger professionals (28–40) who want proximity to US-36 for weekend ski access (I-70 West to Vail/Breck; 1.5–2 hours), pet-friendly units (dog ownership rate is high in this segment), and work-from-home-compatible setups (spare bedroom or home-office layout).

Lumen Technologies / Level 3 Communications — Telecom Legacy Campus

Lumen Technologies (formerly CenturyLink, incorporating the Level 3 Communications acquisition), maintains a significant technical campus at 1025 Eldorado Blvd, Broomfield CO 80021. Level 3 Communications was founded in Broomfield in 1985 and built much of the modern internet backbone infrastructure from this campus. The Broomfield facility employs hundreds of network engineers, operations staff, and corporate personnel in telecommunications and cloud infrastructure.

Additional US-36 Interlocken corridor anchors include Oracle Corporation (cloud software; ~1,000+ Broomfield employees), Noodles & Company HQ (520 Zang St; ~350 corporate), and a cluster of SaaS and defense-tech companies drawn by the US-36 Interlocken Business Park’s proximity to both DIA and Boulder.

RTD Flatiron Flyer and Broomfield Station

RTD’s Flatiron Flyer express bus rapid transit (BRT) operates along US-36 between Denver Union Station and Boulder Transit Center, with a Broomfield Station stop (1 W. Midway Blvd, Broomfield CO 80021) that provides 20–35 minute service to Union Station and 20–30 minute service to Boulder. Properties within ½–1 mile of Broomfield Station command approximately $100–$200/month above broader Broomfield market comps from transit-dependent Ball/BAE, Vail Resorts, and Oracle employees.

Broomfield School Districts — Primarily BVSD

Most of Broomfield is served by the Boulder Valley School District (BVSD), which extends from Boulder south and east into Broomfield. BVSD schools in Broomfield include Legacy High School, Broomfield High School, Monarch High School, and associated feeder elementaries and middles. BVSD is a well-regarded district and drives family rental demand in Broomfield. A smaller portion of Broomfield (northeast, near the Adams County boundary) may be served by Adams 12 Five Star Schools — always verify the specific school assignment for any Broomfield rental property.

4. Erie — Boulder/Weld County Split (Wrong County = Dismissal)

Erie, Colorado is one of Colorado’s fastest-growing communities — expanding from approximately 8,000 residents in 2000 to approximately 35,000 in 2024, a 337% increase — but it carries the most operationally dangerous compliance trap in the entire northwest Denver metro corridor: a boulder/Weld county split that causes eviction dismissals when landlords file in the wrong court.

Why the Split Exists — and Why It’s So Dangerous

Erie sits on the historic boundary between Boulder County (to the south and west) and Weld County (to the north and east). The town grew up straddling this line, and as new subdivisions were built in the 2010s and 2020s, development extended across the county boundary in multiple directions.

The 80516 ZIP code serves the entire Erie area — but it spans both Boulder County and Weld County. A property at one address in 80516 may be Boulder County; a property at the next address on the same street may be Weld County. The developer’s marketing materials, the neighborhood name, the HOA name, and the street address do not indicate the county. Only a parcel-level county assessor lookup confirms the controlling county.

Why Filing in the Wrong County Court = Automatic Dismissal

Colorado county courts have geographic jurisdiction limited to their own county. When a landlord files a Forcible Entry and Detainer (FED) eviction in a county court that does not have jurisdiction over the property, the court cannot proceed — the case is dismissed for lack of jurisdiction. The landlord must then start over: re-serve the 10-day demand notice, re-file in the correct court, and wait for a new hearing date. In practical terms, a wrong-county filing adds 4–8 weeks to the eviction timeline.

How to Verify Erie County Before Every Filing

Before filing any eviction for an Erie property, verify the parcel’s county:

1. Boulder County Assessor: bouldercounty.gov → Assessor → Property Search. Search by address. If the parcel appears, it is Boulder County → file at Boulder County Justice Center, 1777 6th St, Boulder CO 80302.
2. Weld County Assessor: weldgov.com → Assessor → Property Search. If the parcel appears in Weld County records, file at Weld County Courts, 901 9th Ave, Greeley CO 80631.
3. New construction / not yet in assessor database: Request the county parcel number directly from the developer, builder, or your title company. New addresses often do not appear in assessor databases until the first assessment cycle after construction. Do not rely on the property address alone.

Keep a copy of the assessor parcel record in your filing documentation. If challenged on jurisdiction, you can produce the assessor’s confirmation as evidence that you filed in the correct court.

The Two Courthouses and Travel Times

• Boulder County: Boulder County Justice Center, 1777 6th St, Boulder CO 80302. From central Erie: approximately 24 miles southwest via CO-52 W to US-287 S to Boulder; approximately 30–45 minutes normal conditions, 45–60 minutes peak rush hour. Paid parking available adjacent to the courthouse.
• Weld County: Weld County Courts, 901 9th Ave, Greeley CO 80631. From central Erie: approximately 26 miles north via CO-52 E to US-34 N/E into Greeley; approximately 30–40 minutes normal conditions. Free parking available at the Weld County complex.

Erie as a Bedroom Community — Demand Drivers

Erie has no dominant employer of its own within town limits. Its rental demand is driven entirely by commuters to surrounding employment centers:

• Broomfield tech corridor (~25 miles south): Ball/BAE Systems Space, Vail Resorts HQ, Oracle, Lumen/Level 3 employees. US-287 and CO-7 provide reasonable access.
• Boulder tech/CU Boulder (~24 miles southwest): Google Boulder, Apple Boulder, Medtronic, CU Boulder (~23,000 employees) workforce. Erie represents a 40–60% rent discount vs. Boulder for comparable units.
• Longmont employers (~8 miles northwest): UCHealth Longmont, St. Vrain Valley SD, local employers. Short commute makes Erie affordable alternative for Longmont workers.
• Denver / Denver Tech Center (~30–35 miles south): Post-2020 remote workers who commute 2–3 days/week. I-25/E-470 provides access to DTC.

New Construction Dominance and Deposit Implications

Erie’s rental stock is overwhelmingly new construction (2015–2024): master-planned townhome communities, attached garage townhomes, and SFR subdivisions from builders including D.R. Horton, LGI Homes, and local developers. The BVSD Erie High School (opened 2013) serves most of western Erie and has established a strong academic reputation, supporting school-zone rental premiums among family renters.

New construction deposit context: typical Erie townhome or SFR deposit is $2,000–$3,400 (1–1.5 months’ rent). New construction deposits are high because units are delivered in pristine condition and tenants are expected to return them the same way. Photograph every unit at delivery and move-in; use a detailed move-in checklist; document the pre-delivery walk-through with the builder/seller.

5. Longmont — Boulder County Courthouse 18 Miles Away; Affordable Boulder Alternative

Longmont, Colorado (~100,000 population) is Boulder County’s second-largest city, approximately 18 miles north of Boulder on US-287 / CO-119 (the Diagonal Highway). It operates as the primary affordable alternative to Boulder for workers at CU Boulder, the Boulder tech sector (Google, Apple, Medtronic, NREL), and the broader Boulder County professional workforce.

The Longmont Courthouse Commute

All Longmont residential evictions file at the Boulder County Justice Center, 1777 6th St, Boulder CO 80302. From central Longmont, the courthouse is approximately 18 miles south via CO-119 (the Diagonal Highway).

Travel time: 25–35 minutes in normal conditions; 40–55 minutes during peak Boulder commute hours (especially westbound on CO-119 in the AM, and eastbound returning from Boulder in the PM). Plan 45–60 minutes door-to-door for any courthouse appearance. Paid parking is available in the Boulder County Justice Center parking structure.

The Boulder County FED process:

1. Serve the written 10-Day Demand for Payment or Possession (CRS §13-40-104(1)(d); HB 21-1121 — 3-day notices are defective since Jan 1, 2022).
2. If tenant does not cure: file FED complaint at Boulder County Justice Center, 1777 6th St, Boulder CO 80302.
3. Court schedules hearing, typically 7–14 days after filing. Summons is served on the tenant.
4. Hearing held in Boulder. If judgment for possession, landlord receives a Writ of Restitution.
5. Boulder County Sheriff executes lockout within 48 hours of writ issuance.

Total uncontested timeline: approximately 4–6 weeks from notice service to lockout.

The Boulder-Longmont Rent Gap — The Core Value Proposition

Longmont’s rental market is defined primarily by the enormous rent gap between Boulder proper and Longmont:

• Boulder 1BR: $2,800–$3,500+ (median near CU campus; Pearl St / University Hill)
• Longmont 1BR (equivalent): $1,100–$1,700/month
• Gap: approximately $1,500–$2,000/month for comparable units

This gap makes Longmont the most logical housing alternative for Boulder workers at income levels that cannot afford Boulder rents: post-doctoral researchers at CU ($55,000–$75,000/year), mid-level Google/Apple engineers who want a house rather than an apartment ($90,000–$130,000/year), UCHealth system nurses and healthcare workers ($55,000–$90,000/year), and university staff and administrators ($45,000–$80,000/year).

The 2020–2022 Remote Worker Migration and Its Permanent Effects

The 2020–2022 pandemic-era remote work wave brought a significant influx of higher-income workers from San Francisco, Seattle, New York, and Denver proper into Longmont, seeking more space for lower cost while working from home. This migration elevated Longmont rents 25–40% above 2019 baselines in a compressed 18-month period.

Critically, these elevated rents did not revert when pandemic conditions eased. The workers who relocated largely stayed; the demand base is now substantially higher than pre-2020. Landlords who acquired pre-2020 properties and anchored rents to 2018–2019 comps are significantly underpriced vs. the current market. Use current listing data, not historical comparables, for Longmont rent-setting in 2026.

UCHealth Longmont United Hospital — Stable Healthcare Demand Anchor

UCHealth Longmont United Hospital (1950 Mountain View Ave, Longmont CO 80501) employs approximately 1,800+ healthcare workers: physicians, nurses, respiratory therapists, imaging technologists, administrative staff. It is the primary regional acute care hospital for Longmont, eastern Boulder County, and the southwestern Weld County communities. Healthcare workers at Longmont United represent a reliable, long-term rental demand segment with stable employment and predictable pay schedules. Travel nurse demand (short-term furnished rentals, 3–6 month placements) is an additional revenue opportunity for landlords with appropriately configured units.

St. Vrain Valley School District RE-1J — Separate from BVSD

A common misconception: because Longmont is in Boulder County, many investors assume it is served by the Boulder Valley School District (BVSD). Longmont is NOT in BVSD. It is served by the St. Vrain Valley School District RE-1J (SVVSD), which is a separate district covering Longmont and surrounding towns (Lyons, Mead, Niwot, Firestone, Frederick, Dacono). SVVSD high schools include Longmont High School, Silver Creek High School, Niwot High School, Mountain View High School, and others. SVVSD is a well-regarded district with strong academic outcomes, but it is distinct from BVSD and commands different premiums in specific school-zone rentals.

6. Colorado Landlord-Tenant Law Essentials

Colorado Revised Statutes Title 38, Article 12 (CRS §38-12 et seq.) and Title 13, Article 40 (CRS §13-40 et seq.) govern all residential tenancy, security deposit, and eviction matters across Jefferson County (Golden), Broomfield County, Boulder County (Longmont, west Erie), and Weld County (east Erie). Three key bills passed in 2021 changed Colorado landlord obligations significantly:

Security Deposits — CRS §38-12-102 through §38-12-104

• No deposit cap. Colorado imposes no statutory maximum on residential security deposits. Market practice in the northwest corridor ranges from 1–1.5 months’ rent for standard units to 1.5–2 months for high-value SFR and luxury apartments. Golden near-CSM studio standard: $900–$1,400 deposit. Broomfield Interlocken 1BR: $1,600–$2,500. Erie new construction SFR: $2,000–$3,400.
• 60-day return deadline after tenancy termination (CRS §38-12-103(1)). If the tenant provides a written demand for return, the deadline shrinks to 30 days. Treat 30 days as your operational deadline regardless.
• Itemized statement required for any partial return. Each deduction must be identified by category and dollar amount. Vague itemizations (“general cleaning: $500”) are legally fragile; line-item detail (“carpet cleaning per unit cleaning invoice, $285; hallway painting, $215”) is defensible.
• 3× willful wrongful withholding penalty + attorney fees (CRS §38-12-103(3)). The “willful” standard in Colorado is broadly interpreted; courts have found willful withholding where landlords simply failed to return deposits within the deadline without affirmative proof of deductible damage. On a $3,000 Erie townhome deposit, a 3× penalty exposure = $9,000 + attorney fees.

Eviction Notice Requirements

• Nonpayment of rent: Colorado HB 21-1121 (effective January 1, 2022) extended the eviction notice from 3 days to 10 days (CRS §13-40-104(1)(d)). The tenant has a genuine cure right: payment in full within 10 days extinguishes the notice. 3-day notices are defective and result in FED dismissal.
• Month-to-month lease termination: Colorado SB 21-173 (effective January 1, 2022) extended the termination notice from 10 days to 21 days. 10-day termination notices are defective.
• Entry notice: CRS §38-12-1102 requires 24-hour advance written notice before landlord entry. Text message notice alone is legally insufficient; use written notice delivered or emailed.
• Self-help eviction prohibited: CRS §38-12-510 — up to $5,000 punitive damages + actual damages + attorney fees for any landlord who changes locks, shuts off utilities, or removes the tenant’s belongings without a court order.

7. Rent Control Risk Profiles by County

The northwest Denver metro corridor spans four distinct political jurisdictions, each with meaningfully different rent control risk profiles for 2026 and beyond.

The practical implication for Erie landlords: the Boulder County portion of your Erie portfolio carries a materially higher long-term risk than the Weld County portion, even though both are currently unregulated. Landlords with the ability to acquire new Erie units should note the county of each parcel as a factor in long-term investment thesis.

8. Four-City Analysis

Golden CO — Jefferson County Seat, CSM/NREL/Coors Triple Anchor

Broomfield CO — Consolidated City-County, US-36 Tech Corridor

Longmont CO — Boulder County, Courthouse 18 Miles to Boulder

Erie CO — Boulder/Weld Split, Fastest-Growing Bedroom Community

9. Major Employer Table — Denver CO Northwest Metro 2026

10. Rent Ranges by Submarket — Denver CO Northwest Metro 2026

11. Ten Costliest Mistakes — Northwest Metro / Boulder County Landlords

1. Filing an Erie eviction in the wrong county court. The single most expensive mistake in this corridor. Wrong county = automatic dismissal. 3-day re-serve + re-file = 4–8 extra weeks and one or two months of additional lost rent. Verify every Erie parcel at bouldercounty.gov or weldgov.com before filing. Keep the assessor parcel printout in your filing folder.
2. Using a 3-day nonpayment eviction notice in 2026. Colorado HB 21-1121 (effective January 1, 2022) changed the minimum to 10 days. A 3-day notice is legally defective; the FED will be dismissed. The same notice clock restarts from zero. Every Colorado eviction for nonpayment requires the 10-Day Demand for Payment or Possession.
3. Failing to verify Broomfield vs. Adams County school district for a property. Not all of Broomfield is served by BVSD. The northeastern portion near the Adams County boundary may be Adams 12 Five Star Schools. Advertising the wrong school district in a listing can trigger fair housing complaints and fails to capture the premium of the correct district for marketing. Verify at BVSD.org or Adams12.org using the specific address.
4. Anchoring Longmont rents to pre-2020 comparables. The 2020–2022 remote worker migration permanently elevated Longmont rents 25–40% above 2019 baselines. A 2019 market report showing 1BR rents at $900–$1,100 is irrelevant in 2026. Use current listing data from Zillow, Apartments.com, and local property managers for comps.
5. Ignoring the CSM guarantor clause enforcement issue. CSM undergraduate leases require a parental guarantor. If the lease guarantor clause is poorly drafted (“guarantor is liable for Tenant John Smith’s obligations while enrolled at CSM”), the parent may argue the guarantee terminates when the student withdraws mid-lease, drops below full-time enrollment, or defers a semester. Draft guarantees that extend for the full lease term regardless of enrollment status, and consult a Colorado landlord-tenant attorney for the clause.
6. Missing the 30-day deposit return deadline when a tenant provides a written demand. The general Colorado deadline is 60 days. But any tenant who sends a written demand for return after moving out accelerates the deadline to 30 days. Many Golden and Longmont tenants (especially NREL researchers and CSM graduate students) know this provision and send demand letters immediately upon move-out. Track the date of any written demand and treat 30 days as the absolute return deadline.
7. Failing to account for the Ball Aerospace / BAE Systems Space acquisition uncertainty. Corporate acquisitions routinely involve workforce consolidation reviews, program transfers, and office relocations. While the Broomfield campus is anchor-grade, investors who acquire properties solely based on Ball/BAE headcount should monitor BAE Systems quarterly reports for any Broomfield program changes. Diversify Broomfield portfolio exposure across the US-36 corridor rather than concentrating entirely on the 1600 Commerce St proximity premium.
8. Not documenting move-in conditions for new Erie construction. New construction units are delivered in pristine condition. The expectation — from builders, landlords, and tenants — is that the unit returns in equivalent condition. Failure to document the pristine pre-occupancy condition makes deposit deductions for any damage impossible to prove at trial. Conduct a detailed photographic and written move-in inspection with the tenant present on the first day of the lease.
9. Assuming Longmont is in the Boulder Valley School District (BVSD). Longmont is NOT in BVSD — it is in St. Vrain Valley School District RE-1J (SVVSD). Advertising “Boulder Valley Schools” for a Longmont property is factually incorrect and misleading to prospective tenants. SVVSD is a strong district, but it is different from BVSD and should be accurately represented.
10. Ignoring Boulder County rent control monitoring for Longmont and west Erie. No Boulder County city has enacted a rent cap as of 2026. But the City of Boulder enacted Just Cause Eviction protections in 2022, and Boulder County Commissioner discussions have referenced tenant protections. Landlords with long-term hold strategies in Longmont should track Longmont City Council agendas and Boulder County housing policy developments. A monitoring cost of zero (city council agendas are publicly available) is far preferable to being surprised by an enacted ordinance.

12. Twelve-Step Landlord Checklist — Denver CO Northwest Metro

1. Verify your property’s county before any filing. Jefferson County (Golden): jeffco.us Assessor. Broomfield County (Broomfield): broomfield.org Assessor. Boulder County (Longmont, west Erie): bouldercounty.gov Assessor. Weld County (east Erie): weldgov.com Assessor. Print the parcel record and keep it in your property file.
2. Confirm the correct courthouse for your county before filing any eviction. Jefferson County → Jefferson County Combined Court, 100 Jefferson County Pkwy, Golden. Broomfield County → Broomfield Combined Court, 17 DesCombes Dr, Broomfield. Boulder County → Boulder County Justice Center, 1777 6th St, Boulder. Weld County → Weld County Courts, 901 9th Ave, Greeley.
3. Use the correct eviction notice (10-day, not 3-day). Serve a 10-Day Demand for Payment or Possession for nonpayment. Include the total amount owed and the Colorado statutory language. Document service method (personal service, conspicuous posting, or certified mail).
4. Use the correct month-to-month termination notice (21 days). Provide 21 days’ written advance notice for any month-to-month termination. Written notice must be delivered or emailed; verbal notice alone is legally insufficient.
5. Comply with Colorado’s 24-hour entry notice requirement. Provide 24-hour advance written notice before any entry (maintenance, inspections, showings). Text-only notice is not written notice; use email with read receipt or physical written notice.
6. Conduct and document a detailed move-in inspection. For new construction Erie and Broomfield units: photograph every surface, every fixture, every appliance at delivery condition. Have the tenant sign a move-in inspection report. Retain all documentation for the full tenancy plus 3 years post-move-out.
7. Draft CSM and other student lease guarantees carefully. For Golden CSM undergraduate leases: ensure parental guarantor language survives graduation, withdrawal, transfer, or unenrollment. Have a Colorado landlord-tenant attorney review your guarantor clause.
8. Return the deposit within 30 days of any written tenant demand. Track move-out date and any written demand letters received. On the 30th day, return the deposit balance with itemized deductions. 3× willful wrongful withholding + attorney fees is a real exposure.
9. Provide a line-item deposit deduction statement. Each deduction must be categorized and dollar-amount-specified. Attach invoices for cleaning and repairs. Vague itemizations (“cleaning: $400”) are legally fragile; specific itemizations (“carpet steam cleaning per invoice attached, $285”) are defensible.
10. Accurately represent the school district in your listing. Broomfield: verify BVSD vs. Adams 12 for the specific address. Longmont: SVVSD, not BVSD — they are different. Erie: BVSD (most of western Erie); verify specific school assignment. Advertising the wrong district is a fair housing risk and a factual misrepresentation.
11. Monitor Boulder County rent control developments annually. Bookmark Longmont City Council meeting agendas (longmontcolorado.gov/mayor-city-council). Review Boulder County Commissioner housing policy agenda once per quarter. Set a Google Alert for “Longmont rent control” and “Boulder County rental ordinance.” No cost; potentially significant advance warning of regulatory change.
12. Do not implement self-help eviction under any circumstances. No lock changes, no utility shutoffs, no property removal without a court order. Colorado CRS §38-12-510: up to $5,000 punitive damages + actual damages + attorney fees per incident. Use the FED process exclusively, even if it feels slow.