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CENTENNIAL SERVICES

Historic Renovation in Centennial

Licensed historic renovation services for Centennial and Arapahoe County. Preserve character. Add modern comfort..

What Centennial requires

Code reference: In Centennial, Colorado, building permits for residential remodel work are governed by the 2021 International Residential Code (IRC) Section R105 (adopted via Centennial Municipal Code Chapter 18 – Building Regulations, per Ordinance 2023-O-06 and related adoptions of the 2021 I-Codes). §R105

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Historic Renovation

Preserve character. Add modern comfort.

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Local Service

Historic Renovation Services in Centennial, Colorado

Autotelic provides professional historic renovation services throughout Centennial and the surrounding Arapahoe County area. Historic home renovation across the Denver metro preserving original character while upgrading systems, efficiency, and modern livability. Landmark district experience. Whether you're in Centennial (south Denver metro) or nearby communities, our team delivers quality workmanship backed by Colorado licensing and full insurance coverage.

Permits & Licensing

Permits in Centennial

Centennial building permits, inspections, and contractor license approvals are handled by the city's Building Division. Permits and contractor licenses must be applied for online through the city's Self-Service Portal, and we handle that process as part of every project. Authority: City of Centennial — Building Division.

Permit Thresholds

Centennial permit thresholds

Code reference
In Centennial, Colorado, building permits for residential remodel work are governed by the 2021 International Residential Code (IRC) Section R105 (adopted via Centennial Municipal Code Chapter 18 – Building Regulations, per Ordinance 2023-O-06 and related adoptions of the 2021 I-Codes).§R105
Code reference
Typically exempt work (aligning with IRC R105.2 exemptions, with local application) includes:
Code reference
One-story detached accessory structures (e.g., sheds) ≤200 sq ft.
Code reference
Fences ≤7 ft high; retaining walls ≤4 ft high (measured from bottom of footing).
Code reference
Prefabricated swimming pools <24 inches deep.
Code reference
Window awnings projecting ≤54 inches.
Code reference
Decks ≤200 sq ft, ≤30 inches above grade, and not attached to the dwelling.
Use tax (not collapsed into a single rate)
City of Centennial Use Tax of 2.5% applied to the actual cost of materials, plus Arapahoe County Use Tax of 0.25% applied to the actual cost of materials.

Codes are amended regularly — verify current requirements with City of Centennial — Building Division.

Energy Code

Centennial energy code quick facts

Code reference
Centennial, Colorado, has adopted the 2018 IECC (with the 2021 I-Codes package) as its energy code, with no mention of Denver-specific overlays such as the Denver Green Code or Energize Denver.
Code reference
This is enforced by the City’s Building Division under Ordinance No. 2023-O-06 (adopting the referenced codes by reference, effective as part of the 2021/2023 code update package).Ord. No. 2023-O-06
Code reference
Centennial is in Climate Zone 5B.
Code reference
The code applies to alterations, additions, and remodels per IECC Chapter 5 (existing buildings), with the prescriptive requirements of Chapter 4 (or equivalent U-factor/UA paths) generally applying to new or modified portions of the thermal envelope.
Code reference
Key prescriptive requirements relevant to remodels/additions (drawn from 2018 IECC Table R402.1.2 and related sections for CZ 5; these are the base code values with no local amendments identified that alter them):
Ceiling/attic insulation
Minimum R-49 (or equivalent U-factor ≤ 0.026).
Adopting reference
2018 IECC R402.1.2 (Table R402.1.2).
Wood-frame wall insulation
R-20 cavity or R-13 cavity + R-5 continuous insulation (or equivalent U-factor ≤ 0.060).
Ord. No. 2023-O-06Source: centennialco.gov

Codes are amended regularly — verify current requirements with City of Centennial — Building Division.

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What this covers

Repair and update of an older Denver building while keeping character-defining features. Landmark or conservation overlay, if present, changes what can be replaced on the exterior.

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How the work is coordinated

Hidden MEP and structure are opened carefully; unknowns are common and are priced as discovered work, not invented allowances. Denver-metro work is permitted locally. Colorado has no statewide general-contractor license. Cities and counties license general contractors. DORA licenses electrical and plumbing (and similar regulated trades), not general contractors. Autotelic is a municipally licensed Denver general contractor that coordinates licensed specialty trades. Denver building permits run through Community Planning and Development (CPD). Costs are project-specific; no dollar figures.

FAQ

Common questions

Who handles the historic renovation permits and licensing?

A municipally licensed Denver general contractor coordinates licensed specialty trades. Colorado has no statewide general-contractor license; cities and counties license general contractors. DORA licenses electrical and plumbing, not general contractors.

What is typically in scope for historic renovation in Denver?

Repair and update of an older Denver building while keeping character-defining features.

When do you need drawings or a permit?

Anything that changes structure, occupancy, or regulated electrical or plumbing usually needs a local permit. Denver building permits are reviewed by Community Planning and Development. Confirm the exact trigger with CPD for the address.

Service Area

Serving Centennial and Arapahoe County

We serve Centennial, 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 Centennial project.

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