ADU / accessory dwelling in Chatham-Arch
Chatham-Arch is Indianapolis's 1860-1900 italianate cottage submarket. Chatham-Arch sits directly behind Mass Ave and is IHPC-designated 1980 — its cottage-and-Queen-Anne stock is some of the most intact 1860-1900 residential fabric in central Indianapolis.
What a adu / accessory dwelling project looks like here
Chatham-Arch sits directly behind Mass Ave and is IHPC-designated 1980 — its cottage-and-Queen-Anne stock is some of the most intact 1860-1900 residential fabric in central Indianapolis.
Because Chatham-Arch is contiguous with the Mass Ave Commercial District, exterior work on properties facing Mass Ave can require both IHPC preservation review AND Regional Center commercial-design review.
Many Chatham-Arch cottages have original 1860-1900 limestone foundations — IHPC asks for tuckpointing in lime-based mortar (rather than modern Portland-cement mortar) to avoid spalling on historic limestone.
Indianapolis ADUs — detached, attached, and conversion paths — scoped against Marion County Code Enforcement + IRC 2018 + Indiana PLA setback + height + parking variances. In Chatham-Arch specifically, 1860-1900 italianate cottage stock means adu / accessory dwelling scope is shaped by the neighborhood's dominant construction typology. Baily's Indianapolis scoping flow factors chatham-arch ihpc district and ihpc certificate of appropriateness for all exterior alterations into the estimate before a contractor is involved.
Start your Chatham-Arch scope — Baily asks the right questions.
Pre-seeded for adu / accessory dwelling in Chatham-Arch. Mention your 1,400-2,800 sqft cottage/two-story, your timeline, and any known constraints — Baily factors the indianapolis historic preservation commission (ihpc) + dbns 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
Chatham-Arch adu / accessory dwelling projects typically run $130K–$380K. Chatham-Arch's 1860-1900 italianate cottage stock, combined with chatham-arch ihpc district — designated 1980, contiguous with mass ave, puts most mid-complexity projects in the $255K range. Baily scopes the exact band once you describe the work.
Nearest neighborhoods
Same service, adjacent Indianapolis submarkets.