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CASTLE ROCK SERVICES
Basement Finish in Castle Rock
Licensed basement finish services for Castle Rock and Douglas County. Unlock your basement's full potential.
- Full Design Lifecycle
- Construction & Tenant Finish
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Unlock your basement's full potential
EVERY PROJECT STARTS WITH DESIGN
Local Service
Basement Finish Services in Castle Rock, Colorado
Autotelic provides professional basement finish services throughout Castle Rock and the surrounding Douglas County area. Complete basement finishing across the Denver metro with framing, electrical, plumbing, drywall, and optional bathroom, bar, and home theater. Whether you're in Castle Rock (Douglas County seat) or nearby communities, our team delivers quality workmanship backed by Colorado licensing and full insurance coverage.
Permit Thresholds
Castle Rock permit thresholds
- Code reference
- Exempt work follows the Town’s adopted amendments to the 2024 International Residential Code (IRC) and International Building Code (IBC), per Ordinance No. 2026-017 (effective around June 30, 2026).Ordinance No. 2026-017
- Code reference
- One-story detached accessory non-habitable structures (tool sheds, playhouses, etc.) ≤ 120 sq ft, ≥ 10 ft from the nearest occupiable structure.
- Code reference
- Fences ≤ 6 ft high (swimming pool barriers of any height are *not* exempt).
- Code reference
- Shingle repair or replacement not exceeding one square (100 sq ft) of covering per building.
- Code reference
- The adopted codes (2024 IRC/IBC and related) govern when alterations trigger permitting.
- Code reference
- See Title 15 of the Castle Rock Municipal Code (and amendments in Ordinance 2026-017) for the full adopted code language on work exempt from permit (primarily amending IRC R105.2 and equivalent IBC sections).Ordinance 2026-017
- Building use tax
- 5.2% applied to 50% of the project’s valuation (materials estimated at half the valuation).
- Code reference
- This comprises the Town’s 4.2% use tax rate + Douglas County’s 1% use tax rate.
Codes are amended regularly — verify current requirements with **The Town of Castle Rock Building Division (part of Development Services) issues residential building permits within the town limits.
Zoning & ADU
Castle Rock zoning & ADU quick facts
- Code reference
- R-1 Single-Family Residence District (primary/most common single-family district; Chapter 17.18) and R-2 Single-Family and Duplex Residence District (Chapter 17.22) are the relevant standard single-family zones.
- Max lot/building coverage
- R-1 and R-2 references indicate standards such as 40% building coverage in certain contexts or related districts (e.g., older or specific provisions); exact R-1/R-2 figures not uniformly detailed in accessible summaries without full code access.
- Max building height
- R-1/R-2: Principal buildings 35 feet; accessory buildings/structures (including garages) 20 feet (Chapter 17.22.040 for R-2; consistent descriptions for R-1).
- ADU permitted
- Yes in R-1 and R-2 (and other single-family residential zones/PUDs designated for single-family use), as an accessory use to single-family detached dwellings.
- Code reference
- One ADU per lot; administrative review/building permit (updated per state HB requirements and local Chapter 17.61).
- ADU max size
- Interior/attached ADUs up to 50% of primary dwelling or 750 sq ft (whichever greater); detached ADUs generally ~800 sq ft (per 2025 code update summaries; exact code limits in 17.61).
- Setbacks (R-2 example, consistent with R-1 descriptions)
- Front yard (all buildings) 25 feet; rear yard principal buildings 25 feet, accessory 10 feet; side yard per dwelling 5 feet (accessory buildings 2 feet if in rear one-third of lot, otherwise 5 feet).
- R-1
- Principal front/rear typically 25 feet.
Codes are amended regularly — verify current requirements with **The Town of Castle Rock Building Division (part of Development Services) issues residential building permits within the town limits.
Energy Code
Castle Rock energy code quick facts
- Code reference
- 2021 International Energy Conservation Code (IECC), with local amendments, as adopted by Ordinance No. 2026-017 (adopted June 2, 2026; effective June 30, 2026), along with the Colorado Model Electric-Ready and Solar-Ready Code.Ordinance No. 2026-017
- Code reference
- This applies to Castle Rock (Douglas County, Climate Zone 5B).
- Code reference
- The adoption aligns with state requirements for jurisdictions updating other building codes by the June 30, 2026 deadline.
- Code reference
- Specific local numeric amendments to prescriptive requirements (e.g., R-values, U-factors, or air-sealing thresholds for remodels/additions) are not detailed in publicly available sources beyond references to the base 2021 IECC tables/sections (such as Table R402.1.2 for insulation/fenestration and
- Code reference
- The adopting ordinance incorporates the 2021 IECC by reference with amendments thereto but does not appear to alter the core prescriptive values in available excerpts.ordinance incorporates
Codes are amended regularly — verify current requirements with **The Town of Castle Rock Building Division (part of Development Services) issues residential building permits within the town limits.
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What a basement finish usually includes
Finishing a Denver-metro basement typically covers framing, insulation, drywall, flooring, lighting, and often a bathroom or wet bar. Creating legal sleeping rooms usually requires proper egress and smoke/CO devices. Moisture history should be understood before closing walls. A municipally licensed Denver general contractor coordinates the build and the licensed specialty trades required for plumbing, electrical, and mechanical work. Cost is project-specific and depends on square footage, bathroom inclusion, egress needs, and existing dampness.
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Egress, height, and moisture
Ceiling height and egress window or door paths constrain bedroom layouts. Chronic dampness, seepage, or high humidity should be addressed with drainage, grading, or mechanical strategies before finishes. HVAC supply and return paths need planning so the basement is conditioned with the rest of the house.
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Permits and who coordinates the work
City and County of Denver Community Planning and Development typically requires building permits for basement finishes that create habitable space, add bathrooms, or change egress, electrical, plumbing, or mechanical systems. Trade permits and inspections are part of that path. 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 for the basement package.
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What buyers should decide early
Whether bedrooms will be claimed as legal sleeping rooms, bathroom count, office vs family-room use, flooring preferences over concrete, and how storage/mechanical rooms are preserved. Photos of existing moisture stains help the first assessment.
FAQ
Common questions
Do I need a Denver permit to finish my basement?
Usually yes when creating habitable space, adding a bath, or altering egress, electrical, plumbing, or mechanical systems. CPD is the building-permit authority inside Denver.
Who handles basement finish permits and licensing?
A municipally licensed Denver general contractor coordinates the project and the licensed specialty trades required. Colorado has no statewide general contractor license.
What makes a basement bedroom legal?
Proper egress and other code requirements adopted locally. Confirm sleeping-room criteria with the permitting authority before framing.
Should moisture issues be fixed first?
Yes. Closing finishes over active seepage or chronic dampness traps problems. Address drainage and humidity sources before insulation and drywall.
What information helps define an accurate basement finish scope?
Rough square footage, desired rooms, bathroom inclusion, moisture history, ceiling height photos, and the city or county for permitting.
Service Area
Serving Castle Rock and Douglas County
We serve Castle Rock, 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 Castle Rock project.
FAQ
Common questions
Does finishing a basement require a permit?
Yes — basement finishes involve framing, electrical, and often plumbing, all of which are permitted and inspected by your municipal building department. Egress requirements for bedrooms are checked at permit review.
Can a finished basement include a bedroom or rental space?
Often, if egress windows and ceiling heights meet code. We review your city’s requirements during design and tell you plainly what is and is not achievable in your space.
What does the process look like?
Design and scope first, then a written estimate within 48 hours of your inquiry, then permits, build, and inspections — one team throughout.
How It Runs
01
Survey
02
Design
03
Build
04
Verify
DESIGN SERVICES
Discovery & Site Analysis
Needs + preference programming, site survey, as-built documentation, feasibility.
We walk, measure, and photograph your property — existing conditions, utilities, structure, and constraints. You get the as-built documentation and feasibility read that every later decision rests on.
Learn more →Concept Design & Space Planning
Schematic design, floor plan studies, layout options.
Your scope becomes schematic floor plans you can compare side by side — circulation, daylight, adjacencies, and what each option does to the budget. Layout decisions happen on paper, where changes are cheap.
Learn more →Architectural Design & 3D Renderings
Design development, materials + finishes, photorealistic visualization.
The chosen concept resolves into materials, finishes, fixtures, and lighting — with the automation layer drawn in. Photorealistic renderings let you walk the space and adjust before anything is priced.
Learn more →Construction Documents & Permitting
Full CD sets, structural + MEP engineering coordination, permit-ready drawings.
Approved designs become coordinated architectural, structural, and MEP sheets — the set your jurisdiction permits from and trades build from. We submit, track, and answer review comments.
Learn more →CONSTRUCTION
New Construction & Custom Homes
Ground-up homes and light commercial, dirt to keys.
Ground-up residential and light commercial builds — foundations through finishes, including modular and steel construction. One accountable builder from dirt to keys.
Learn more →Remodels & Additions
Kitchens, baths, basements, pop-tops, whole-home.
Kitchens, baths, basements, pop-tops, and whole-home renovations that respect the house you already have. We handle structure, permits, and the dust.
Learn more →Commercial Tenant Finish & Build-Outs
Shells to working spaces — retail, office, restaurant, school.
Raw shells become working spaces — showrooms, offices, restaurants, schools. Dealer-spec finishes, code compliance, and opening dates held.
Learn more →ADUs & Modular Construction
Backyard cottages, garage conversions, factory-built homes.
Backyard cottages, garage conversions, and factory-built homes — zoning, design, permits, and set. Denver’s ADU rules are a specialty, not a surprise.
Learn more →Outdoor Living & Patio Structures
Decks, pergolas, and dining patios built for Colorado weather.
Decks, pergolas, and dining patios engineered for Colorado sun, snow, and hail — structure, shade, and drainage done right the first time.
Learn more →TECHNOLOGY
Smart Home Automation
Lighting, shades, climate, audio, security — one interface.
Whole-home control of lighting, shades, climate, audio, and security from a single interface — Crestron, Lutron, Savant, and Control4 designed in, not bolted on.
Learn more →A/V Systems
Theaters, distributed audio, video walls, commercial sound.
Theaters, distributed audio, video walls, and commercial sound — designed, installed, and tuned by the same team for over 20 years.
Learn more →Control Systems
Custom programming — scenes and schedules that fit the space.
Every subsystem brought into one elegant interface — custom programming for homes and venues, with scenes and schedules that match how the space is actually used.
Learn more →Networking & Edge Compute
Enterprise Wi-Fi, structured cabling, racks, on-prem compute.
Enterprise-grade Wi-Fi, structured cabling, racks, and on-premise compute — the backbone that makes everything else reliable, including our own Barbot platform.
Learn more →Solar & Energy Storage
Solar arrays, Tesla Powerwall, EV charging — certified install.
Solar arrays, Tesla Powerwall, and EV charging designed and installed by a Tesla Energy Certified team — roof, electrical, and app in one scope.
Learn more →TRUSTED TO BUILD FOR
- Punch Bowl SocialFirst four locations
- Spectrum RetirementSenior living communities
- Denver HighlandsFirst modular custom home
Let's design your perfect Basement Finish together
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