ADU / accessory dwelling in Colleyville
Colleyville is Colleyville's 1985-present french provincial + mediterranean + traditional on large lots in the affluent mid-cities corridor submarket. Colleyville is a 13.4-square-mile city wedged between Southlake, Grapevine, and North Richland Hills -- it has one of the highest median incomes in DFW and a housing stock skewed heavily to estate-scale custom builds.
What a adu / accessory dwelling project looks like here
Colleyville is a 13.4-square-mile city wedged between Southlake, Grapevine, and North Richland Hills -- it has one of the highest median incomes in DFW and a housing stock skewed heavily to estate-scale custom builds.
Because Colleyville's school district is the Grapevine-Colleyville ISD (top-performing), the school-quality premium adds an estimated 15-20% to valuations vs equivalent stock in adjacent Hurst or Bedford.
The original 1985-2000 stock here used the first generation of post-tensioned slabs on the Houston Black/Heiden clay transition -- foundation movement is more common than in newer 2005+ Colleyville stock and is in scope on 35-45% of major remodels.
Dallas R-5(A) / R-7.5(A) / R-10(A) residential zones allow ADUs by-right since the 2022 code update — Dallas Building Inspection Division files the permit on a residential template. In Colleyville specifically, 1985-present french provincial + mediterranean + traditional on large lots in the affluent mid-cities corridor stock means adu / accessory dwelling scope is shaped by the neighborhood's dominant construction typology. Baily's Dallas scoping flow factors colleyville is a separate municipality with separate building department and colleyville adopted 2021 irc + iecc into the estimate before a contractor is involved.
Start your Colleyville scope — Baily asks the right questions.
Pre-seeded for adu / accessory dwelling in Colleyville. Mention your 3,500-7,500 sqft, your timeline, and any known constraints — Baily factors the city of colleyville building inspection review queue into the scope.
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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
Colleyville adu / accessory dwelling projects typically run $85K–$285K. Colleyville's 1985-present french provincial + mediterranean + traditional on large lots in the affluent mid-cities corridor stock, combined with colleyville is a separate municipality with separate building department, puts most mid-complexity projects in the $185K range. Baily scopes the exact band once you describe the work.
Nearest neighborhoods
Same service, adjacent Dallas submarkets.