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ADU / DADU in Centennial

Centennial is Centennial's 1980s-2000s suburban tract + master-planned submarket. Centennial is one of Colorado's youngest cities — incorporated in 2001 from unincorporated Arapahoe County to gain local control over the 1980s-2000s suburban tract development that had occurred without municipal oversight.

Centennial cost range
$195K$985K
typical mid-complexity
Permit authority
Centennial Community Development (incorporated 2001)
10-18 weeks (Centennial CD)
Typical home size
2,000-4,000 sqft; 0.16-0.28 acre lots
Borough · ZIP
Centennial
80112
Centennial incorporated 2001 — relatively new municipal codeCentennial NO state contractor license — municipal GC license required2024 IECC + Centennial amendmentsPierre shale soils report on basement scopeCentennial hail insurance — Class 4 IR roof

What a adu / dadu project looks like here

Centennial is one of Colorado's youngest cities — incorporated in 2001 from unincorporated Arapahoe County to gain local control over the 1980s-2000s suburban tract development that had occurred without municipal oversight.

Centennial's permit office is in some ways more streamlined than older municipal offices — its post-2001 code adoption was contemporary + the city actively cross-references Denver, Aurora, and Greenwood Village standards.

Centennial's 1980s-2000s tract stock + 0.16-0.28 acre lots makes it a primary scope-up + finish-update market for southeast Denver-metro buyers.

Denver Zoning Code permits ADUs by-right in most residential zones; permitting through Denver CPD with a 35 ft height + FAR cap and a soils report on basement-level units. In Centennial specifically, 1980s-2000s suburban tract + master-planned stock means adu / dadu scope is shaped by the neighborhood's dominant construction typology. Baily's Denver scoping flow factors centennial incorporated 2001 and centennial no state contractor license into the estimate before a contractor is involved.

Start your Centennial scope — Baily asks the right questions.

Pre-seeded for adu / dadu in Centennial. Mention your 2,000-4,000 sqft, your timeline, and any known constraints — Baily factors the centennial community development (incorporated 2001) review queue into the scope.

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Origin

Who is Baily?

Baily is named after Francis Baily — an English stockbroker who retired at 51, became an astronomer, and in 1836 described something on the edge of a solar eclipse that nobody had properly articulated before: a string of bright beads of sunlight breaking through the valleys along the moon’s rim.

He wasn’t the first to see them. Edmond Halley saw them in 1715 and barely noticed. Baily’s contribution was clarity — describing exactly what was happening, in plain language, so vividly that the whole field of astronomy paid attention. The phenomenon is still called Baily’s beads.

That’s what we wanted our AI to do. Every inbound call and text has signal in it — a homeowner’s real question, a timeline, a budget, a hesitation that means “yes but.” Baily listens to every one, 24/7, and finds the beads of light.

Baily was a businessman before he was a scientist. That’s our vibe too.

Questions LA homeowners actually ask

Nearest neighborhoods

Same service, adjacent Denver submarkets.

Other projects we scope in Centennial

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