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HIGHLANDS RANCH SERVICES

Pop-Top Addition in Highlands Ranch

Licensed pop-top addition services for Highlands Ranch and Douglas County. Go up, not out — add a full second story.

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Pop-Top Addition

Go up, not out — add a full second story

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Local Service

Pop-Top Addition Services in Highlands Ranch, Colorado

Autotelic provides professional pop-top addition services throughout Highlands Ranch and the surrounding Douglas County area. Pop-top second-story additions across the Denver metro — add bedrooms, bathrooms, and living space without expanding your footprint. Structural engineering included. Whether you're in Highlands Ranch (large master-planned community) or nearby communities, our team delivers quality workmanship backed by Colorado licensing and full insurance coverage.

Permits & Licensing

Permits in Highlands Ranch

Highlands Ranch is unincorporated, so building permits there are issued by Douglas County's Building Division rather than a city government. The county's Contractor Registration Program requires contractors applying for permits to be registered with the county first. Authority: Douglas County — Building Division.

Permit Thresholds

Highlands Ranch permit thresholds

Code reference
Douglas County has adopted the 2024 International Residential Code (IRC) with local amendments, effective July 1, 2026.
Code reference
Douglas County adopted the 2024 International Residential Code (IRC) with amendments, effective July 1, 2026.
Permit Required Generally
Douglas County Code Chapter 15.12, Section 15.12.010, addresses when a permit is generally required.Section 15.12.010
Work Exempt From Permit
Douglas County, Colorado, details exemptions under Chapter 13.
Code reference
CONSTRUCTION CODES, Section 13-107.4.1.Section 13-107.4.1.
Code reference
Work Exempt From Permit (Douglas County, Colorado - Chapter 13.
Code reference
One-story detached accessory structures (such as tool and storage sheds, playhouses, and similar buildings) provided the floor area does not exceed 200 square feet.
Code reference
Fences not over 7 feet high.

Codes are amended regularly — verify current requirements with Douglas County — Building Division.

Zoning & ADU

Highlands Ranch zoning & ADU quick facts

Douglas County Residential Districts (General)
40% (for single-family detached, duplex, and triplex dwellings).
Code reference
This applies to the R-L (Residential Low Density) District and other general residential districts in Douglas County, and is generally applicable in the absence of more specific PD standards.
Douglas County Residential Districts (Principal Structures)
35 feet.
Code reference
(Article 4, Division I, Douglas County Zoning Resolution).
Douglas County Residential Districts (Accessory Structures)
Two stories or 26 feet, whichever is less.
Code reference
(Article 4, Division I, Douglas County Zoning Resolution).
Code reference
Detached ADUs are typically restricted to one story or 20 feet.
Code reference
ADUs are permitted within rural or agricultural districts in Douglas County (DCC 18.16.170).

Codes are amended regularly — verify current requirements with Douglas County — Building Division.

Energy Code

Highlands Ranch energy code quick facts

Code reference
Douglas County, which includes Highlands Ranch, Colorado, has adopted the 2024 International Energy Conservation Code (IECC) with local amendments, effective July 1, 2026.
Code reference
This adoption aligns with Colorado state law, which mandates that jurisdictions updating other building codes between July 1, 2023, and June 30, 2026, must adopt at least the 2021 or 2024 IECC and the Colorado Model Electric Ready and Solar Ready Code.
Code reference
Starting July 1, 2026, jurisdictions are required to adopt the Colorado Model Low Energy and Carbon Code (MLECC), which is based on the 2024 IECC and replaces the IECC and the Model Electric Ready and Solar Ready Code.
Code reference
The climate zone for unincorporated Douglas County is established as Zone 5B.
Code reference
Detailed local amendments to the 2024 IECC from Douglas County were not immediately available in the search results.
Code reference
Therefore, the following prescriptive requirements are based on the general principles of the 2024 IECC for Climate Zone 5B, with a specific amendment identified from previous Douglas County adoptions (2018 IECC amendments) that is likely to carry forward in some form, as local amendments generally
Code reference
For precise requirements, it is essential to consult the full Douglas County 2024 IECC Amendments document.
Code reference
### Key Prescriptive Requirements for Remodels/Additions (Climate Zone 5B)

Codes are amended regularly — verify current requirements with Douglas County — Building Division.

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What a pop-top covers

A pop-top in the Denver metro raises or replaces the roof on the existing footprint to add a story or habitable attic. Walls usually stay; massing and bulk plane control the envelope. The existing foundation still has to take the new loads. A municipally licensed Denver general contractor coordinates the project, design professionals, and licensed specialty trades. Cost is project-specific and depends on roof structure, stairs, and how much of the first floor is opened.

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Bulk plane, height, and landmarks

Zoning height is measured in feet and stories from the front and rear base planes (DZC Sec. 13.1.2). Plans must show allowed versus proposed bulk plane, including roof overhangs. If the existing house already breaks height or bulk rules, elevations should distinguish retained structure from new work. Landmark Preservation lists pop-top/rooftop additions as a review type; designated properties need Landmark approval before zoning or building permits.

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Permits and who coordinates the work

City and County of Denver Community Planning and Development treats pop-tops like other second-story or attic work: structural review and a sealed structural-integrity letter from a design professional who inspected the existing foundation (DBCA 133.3), plus zoning, building, and typically SUDP. 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

Target rooms, roof and attic photos, known foundation issues, and landmark or historic-district status.

FAQ

Common questions

Is a pop-top different from a second-story addition?

A pop-top usually stays on the existing footprint and is controlled by bulk plane. A second-story addition may also expand walls. Both need structural review in Denver.

Who handles pop-top permits and licensing?

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

Do historic houses need extra review?

Yes. Landmark lists pop-top/rooftop additions. Approval comes before zoning and building permits on designated properties.

Will the existing foundation work?

Only after a design professional inspects it. CPD asks for a sealed structural-integrity letter for second-story and attic work.

What information helps define scope?

Desired rooms, roof photos, landmark status, and city or county.

Service Area

Serving Highlands Ranch and Douglas County

We serve Highlands Ranch, 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 Highlands Ranch project.

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