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Garage Conversion in Westminster

ADU Feasibility Consultation, $350

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Licensed garage conversion services for Westminster and Adams/Jefferson County. Turn your garage into livable space.

What Westminster requires

RE — Front Setback (min): 30' RE

See full local requirements ↓
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Garage Conversion

Turn your garage into livable space

Jobs you can book online

Pick your job and choose a time.

Pay when you book. We confirm within 24 hours or refund you in full.

  • ADU Feasibility Consultation

    An on-site review of your lot against local ADU zoning, setbacks, and utility access.

    Pay when you book · morning (8–12) or afternoon (12–4)

    What's included

    An on-site review of your lot against local ADU zoning, setbacks, and utility access. You get a verbal go/no-go read plus a one-page summary of constraints and next steps.

  • ADU Feasibility Package

    Site visit plus a written feasibility report: local ADU zoning check, buildable envelope sketch, utility routing notes, and a preliminary budget.

    $475 deposit to book, the rest when the work is done · morning (8–12) or afternoon (12–4)

    What's included

    Site visit plus a written feasibility report: local ADU zoning check, buildable envelope sketch, utility routing notes, and a preliminary budget. A documented go/no-go you can take to a lender.

FREE PLANNING TOOLS

Both tools are free and take a couple of minutes — start in either one.

Local Service

Garage Conversion Services in Westminster, Colorado

Autotelic provides professional garage conversion services throughout Westminster and the surrounding Adams/Jefferson County area. Garage to living space conversions across the Denver metro — studios, offices, guest suites, and ADUs with full HVAC, insulation, and code-compliant egress. Whether you're in Westminster (between Denver and Boulder) or nearby communities, our team delivers quality workmanship, licensed and insured.

Permits & Licensing

Permits in Westminster

Westminster building permits are issued by the Building Division within Community Services, and the city requires general contractors and mechanical, plumbing, and electrical subcontractors to be registered with the city before permit release. The permitting process is fully paperless, running through Westminster's eTRAKiT portal. Authority: City of Westminster — Building Division (Community Services Department).

Permit Thresholds

Westminster permit thresholds

Code reference
The primary source is the City of Westminster Building Division’s *Residential Building Permit Requirements* document (updated August 22, 2024), available on the official city website.
Code reference
Many exterior items common in remodels/additions (decks >30" above grade, room additions, attached/detached garages, retaining walls >3 ft or with surcharge, etc.) also require permits.
Code reference
Decks ≤30 inches above ground (with caveats).
Code reference
Stand-alone storage sheds ≤120 sq ft with no electrical/plumbing/mechanical.
Code reference
Minor roofing repair (≤100 sq ft).
Code reference
Minor siding repair (<100 sq ft).
Code reference
Retaining walls ≤36 inches in height (no surcharge).

Codes are amended regularly — verify current requirements with City of Westminster — Building Division (Community Services Department).

Zoning & ADU

Westminster zoning & ADU quick facts

RE — Front Setback (min)
30'RE
RE — Side Interior Setback (min)
7'RE
RE — Side Setback Abutting Street (min)
15'RE
RE — Rear Setback (min)
20'RE
RE — Lot Coverage (max)
30%RE
RE — Building Height (max)
25'RE
R1 — Front Setback (min)
30'R1
R1 — Side Interior Setback (min)
5'R1
Westminster Municipal Code Title XI Chapter 4 (through Ord. 4346, 2025) RE setback standards (11-4-5 Density Schedule) — effective 2025-11-10 · Westminster Municipal Code Title XI Chapter 4 (through Ord. 4346, 2025) R1 setback standards (11-4-5 Density Schedule) — effective 2025-11-10Source: library.municode.com

Codes are amended regularly — verify current requirements with City of Westminster — Building Division (Community Services Department).

Energy Code

Westminster energy code quick facts

Code reference
Westminster, Colorado, has adopted the 2021 International Energy Conservation Code (IECC) together with the Colorado Model Electric Ready and Solar Ready Codes (as required by state law HB22-1362 for jurisdictions updating building codes).
Code reference
This applies to new construction, major renovations, remodels, and additions (with the building thermal envelope and other provisions triggered as applicable under the IECC).
Code reference
Westminster is in Climate Zone 5B.
Code reference
No unique local amendments decreasing stringency or deviating from the 2021 IECC prescriptive tables (plus the state model electric/solar-ready provisions) are indicated in available adoption materials.
Code reference
Key prescriptive requirements for remodels/additions (drawn from the adopted 2021 IECC Residential provisions, Table R402.1.2 / R402.1.3 and related sections; these apply where the scope triggers energy code compliance for the affected envelope components):
Ceiling/attic insulation
Minimum R-60 (or equivalent U-factor ≤ 0.026).
Code reference
(2021 IECC Table R402.1.2 / R402.1.3, Climate Zone 5.)
Wood-frame wall insulation
Minimum R-30 (or 20 + 5 ci, 13 + 10 ci, or 0 + 20 ci options) or equivalent U-factor ≤ 0.045.

Codes are amended regularly — verify current requirements with City of Westminster — Building Division (Community Services Department).

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What garage conversion covers

Garage conversions in the Denver metro turn an attached or detached garage into conditioned living space or, where zoning allows, an accessory dwelling unit. Work typically includes insulation, new openings, electrical, HVAC, and often a bath or kitchen. Parking on the lot still has to satisfy zoning. A municipally licensed Denver general contractor coordinates the project and licensed specialty trades. Cost is project-specific and depends on attached versus detached, ADU versus extra rooms, and how much of the envelope changes.

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What buyers should prepare

Attached versus detached, living space versus ADU, whether a bath or kitchen is included, and how parking will be handled.

FAQ

Common questions

How much does ADU Feasibility Consultation cost in Westminster?

$350.

How do I book?

Press Book next to the job, pick a date and a morning (8–12) or afternoon (12–4) window, and pay in full. We confirm within 24 hours or refund you in full.

Who handles garage conversion permits and licensing?

A municipally licensed Denver general contractor coordinates the project, design professionals, and specialty trades. Colorado has no statewide general contractor license.

Is extra living space the same as an ADU?

No. Extra rooms for the main house stay one dwelling. An ADU is a separate dwelling and is only allowed in districts that permit it.

What information helps define scope?

Attached vs detached, ADU vs extra rooms, parking plan, and city or county.

Service Area

Serving Westminster and Adams/Jefferson County

We serve Westminster, CO and all surrounding Denver metro communities. Our team is based in Denver and operates throughout the Front Range, from Castle Rock to Longmont and everywhere in between. Contact us for a free estimate on your Westminster project.

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