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Garage Conversion in Golden

Licensed garage conversion services for Golden and Jefferson County. Turn your garage into livable space.

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Garage Conversion

Turn your garage into livable space

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Local Service

Garage Conversion Services in Golden, Colorado

Autotelic provides professional garage conversion services throughout Golden and the surrounding 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 Golden (gateway to the mountains) or nearby communities, our team delivers quality workmanship backed by Colorado licensing and full insurance coverage.

Permit Thresholds

Golden permit thresholds

Code reference
Building Permit Fees table (effective 05/01/11, as modified by resolutions).
Exterior
One-story detached accessory structures ≤200 sq ft (residential only); fences ≤7 ft tall (unless front yard, corner lot, or historic district); landscaping; minor roof or siding repairs/replacement (10% or less of total area); minor maintenance/repairs; painting; retaining/landscape walls ≤4 ft tall
Code reference
Retaining/landscape walls over 4 ft (or supporting surcharge) also trigger requirements, often needing engineering.
For homeowners doing their own work
materials cost × 2.
Building permit fees are calculated from a tiered table based on total valuation
$1–$500 = $25.85; higher tiers add per-$100 or per-$1,000 increments up to $1M+).
Additional plan review fee (when applicable)
65% of the permit fee.
Building use tax
3% use tax on building materials, stated as 1.5% of total valuation.

Codes are amended regularly — verify current requirements with **The City of Golden (specifically its Building Division/Building Department) issues residential building permits for properties within Golden city limits.

Zoning & ADU

Golden zoning & ADU quick facts

ADUs are permitted in the following residential zone districts in conjunction wi
R-E, R-1, R-1A, R-2, and R-3 (Municipal Code § 18.28.240; city ADU page).§ 18.28.240
Code reference
Lot coverage of all accessory structures must not exceed 10% of the lot area (§ 18.28.240).§ 18.28.240
Code reference
Specific numeric standards for max lot coverage %, max building height, ADU max size, and setbacks for the listed districts (or any form types within them) are not detailed in publicly available summaries of the code or related documents without direct access to the full current Municipal Code Title
Code reference
One reference notes aggregate total lot coverage limits applying to structures in RE, R-1, and R-1A districts, but the exact percentage is not specified in available sources.
Code reference
For precise, current standards, consult the full Golden Municipal Code (library.municode.com/co/golden/codes/municipal_code, Title 18) or contact the city, as the zoning code has undergone form-based updates.

Codes are amended regularly — verify current requirements with **The City of Golden (specifically its Building Division/Building Department) issues residential building permits for properties within Golden city limits.

Energy Code

Golden energy code quick facts

Code reference
2024 International Energy Conservation Code (IECC), adopted by the City of Golden with no energy-specific local amendments noted beyond the base code (and state electric-ready/solar-ready provisions where applicable).
Code reference
Golden (Jefferson County, climate zone 5B) lists the 2024 IECC among its adopted codes on the official Building Permit Process page.
Code reference
Adoption aligns with the city’s update to the 2024 I-Codes suite (effective after the July 22, 2025 council action referenced in related materials).
Code reference
The code applies to new construction, additions, and remodels/alterations as scoped in the IECC/IRC.
Code reference
Key prescriptive requirements (2024 IECC residential provisions, Table R402.1.2 / R402.1.3 and related sections, climate zone 5 / 5B; relevant to additions and remodels where the thermal envelope or systems are altered):
Ceiling/attic insulation
Minimum R-49 (or equivalent U-factor).
Code reference
(2024 IECC Table R402.1.3 / IRC N1102.1.3; note reduction from prior editions.)
Wood-frame wall insulation
R-20 + R-5 ci, or R-13 + R-10 ci, or R-0 + R-20 ci (or equivalent U-factor options).

Codes are amended regularly — verify current requirements with **The City of Golden (specifically its Building Division/Building Department) issues residential building permits for properties within Golden city limits.

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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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Occupancy, energy code, and ADUs

Turning an unconditioned garage into a bedroom is a change of space conditioning. Denver Energy Code Chapter 5 [RE] treats that as a change of occupancy or use and applies addition/new-construction energy rules to the newly conditioned space. Creating a separate ADU is a different zoning path: the district must allow an accessory dwelling unit, and plans must clearly label the ADU and the primary structure. Transportation review is listed for ADUs, garages, and increases in dwelling units.

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Permits and who coordinates the work

City and County of Denver Community Planning and Development requires architectural and structural review for occupancy or use changes, plus zoning, building, and typically SUDP. Exterior changes on landmarks or in historic districts need Landmark review. Cities and counties license general contractors. Colorado has no statewide general contractor license. Autotelic acts as a municipally licensed Denver general contractor and coordinates licensed specialty trades plus the design professionals required for the project.

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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

Does converting a garage need a Denver permit?

Yes. It is a change of occupancy or use. CPD requires building and zoning review, and typically SUDP.

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.

Does energy code apply to a cold garage?

Yes once it becomes conditioned. Denver Energy Code uses turning an unconditioned garage into a bedroom as an example of a change of space conditioning.

What information helps define scope?

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

Service Area

Serving Golden and Jefferson County

We serve Golden, 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 Golden project.

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