Westminster CO Cell Tower Lease Renewal Checklist (2026)
Westminster Cell Tower Lease Renewal
The cell tower lease renewal checklist for Westminster, CO, property owners includes one element unique to Westminster in the JWTTC series: a county reconfirmation and a county-specific comparable update step at every renewal. Because Westminster’s 61% Adams / 39% Jefferson split creates two different comparable environments within the same city, and because the carrier’s renewal offer will use whichever county’s data produces the most favorable opening position, every Westminster renewal must start with a fresh, independent county-specific market assessment before any financial counteroffer is developed.

Step 1 — County Re-Confirmation and Automatic Renewal Window ID — 18 Months Out
Pull the original lease. Confirm which county applies to the parcel via the county assessor (Jefferson County: jeffco.us; Adams County: adcogov.org). For boundary-zone properties, reconfirm that the county hasn’t changed due to any annexation activity. Then locate the automatic renewal provision and notice window (typically 90–180 days before term end). Calendar this date and set a preparation trigger 18 months before it. Action: confirm county, extract renewal notice windows, set 18-month triggers. Call (720) 295-5333.
Step 2 — County-Specific Current Market Value Assessment — 15 Months Out
Commission a current market value assessment using the specific county (Adams or Jefferson) applicable to the Westminster parcel — not a blended “Westminster average.” For Jefferson County properties in west Westminster, the updated Jefferson County comparable data typically supports higher rates than the original lease reflected. For boundary-zone properties, compare the current data for both counties to identify any systematic underpricing relative to the original lease period. Action: Schedule a county-specific assessment at 15 months prior to the renewal trigger.
Step 3 — US-36 Flatiron Flyer Premium Reassessment — 12 Months Out
For properties along US-36 in Westminster: reassess the Flatiron Flyer BRT corridor premium with current transit ridership and corridor development data. Westminster’s US-36 stations have been in service since the Flatiron Flyer launch — and ongoing transit-oriented development around the stations has grown the premium argument since earlier lease originations. Action: update the US-36 Flatiron Flyer premium assessment for the renewal counteroffer development.
Step 4 — Downtown Westminster First-Generation Correction (If Applicable) — 12 Months Out
For Westminster properties near the 105-acre Downtown Westminster redevelopment that signed first-generation leases during the 2009–present development phase, the first renewal is an opportunity to correct below-market terms from that phase. The Downtown Westminster redevelopment has now added years of commercial and residential density, rendering the comparable basis for first-generation leases outdated. The current development zone comparable data — reflecting a mature mixed-use environment rather than a developing zone — supports significantly higher rates than those produced during the first-generation origination period. Action: produce the Downtown Westminster development zone correction list for any first-gen renewal. Call (720) 295-5333.
Step 5 — Relocation Clause Confirmation or Addition — 12 Months Out
If the original Westminster lease lacks a carrier-funded relocation clause, the renewal is the opportunity to add it. Westminster’s active redevelopment — Downtown Westminster’s continued buildout, US-36 densification, and the evolution of the commercial corridor — makes future property-use flexibility valuable across multiple Westminster zones. Action: confirm relocation clause presence; if absent, add to renewal conditions.
Steps 6 and 7 — Carrier Engagement and Execution
Initiate formal renewal engagement at 9 months before the trigger date with county-specific current market assessment and zone premium data prepared. Execute all corrections in a formal lease amendment before the automatic trigger date. Call (720) 295-5333 to begin the Westminster renewal process at the 18-month mark.

Frequently Asked Questions
When should a Westminster CO property owner start preparing for cell tower lease renewal?
At least 18 months before the current term ends. For Downtown Westminster first-generation leases, the first renewal is the opportunity to correct below-market development-phase terms. Call JW Tower & Telecom Consulting at (720) 295-5333 at the 18-month mark.
Should the county be reconfirmed at every Westminster CO cell tower lease renewal?
Yes — especially for boundary-zone properties. Even without county changes, the current county-specific comparable data is the foundation of the renewal counteroffer and must be updated at each renewal cycle. JW Tower & Telecom Consulting re-confirms county and updates comparable data as the first step in every Westminster renewal. Call (720) 295-5333.
About the Author
John M. Wabiszczewicz II is the founder of JW Tower & Telecom Consulting in Denver, Colorado. He holds a Juris Doctor from Roger Williams University School of Law (Bristol, Rhode Island) and a Bachelor of Science in Finance from Bentley University (Waltham, Massachusetts). John began his telecommunications career in 2007 at American Tower as an Asset Acquisitions Attorney in Greater Boston, negotiating lease extensions, capital leases, perpetual easements, and land purchases on the most strategically important cell site locations nationwide with annual spend exceeding $40 million. In 2010, he relocated to Colorado and became a Tower Acquisitions Representative for American Tower, where he acquired new cell tower assets, generating over $10 million in annual revenue. From 2013 through 2023, he led Regional Network Engineering and Real Estate for T-Mobile’s Denver Market, with operational responsibility across Colorado, Wyoming, South Dakota, Utah, Nebraska, and Kansas. He founded JW Tower & Telecom Consulting to represent property owners, drawing on the same insider knowledge he had previously applied on the carrier and tower company side. Review the firm’s BBB profile for business verification.