Custom ADU design in Boston typically takes months before you can file. Our plans are pre-designed for BPDA and Article 53 compliance — pick one, we tailor it to your lot, and you file.
Plans and engineering only — we don't build. Your contractor works from our permit-ready set.
Studio, one-bedroom, or two-bedroom — no blank-page design phase, no waiting for concepts.
Site-specific adjustments handled by our principal engineer, coordinated with licensed MA architects and engineers.
A complete, filing-ready set with compliance documentation — no further redesign needed.
Plenty of plan sets online are concept drawings. A permit-ready set is the complete package Boston's plan reviewers expect to see — here's what that includes.
Dimensional limits, setbacks, and use standards for Boston ADUs are built into the design — not patched in after review comments.
Floor plans, all four elevations, and building sections — drawn to scale, ready for reviewer and contractor alike.
Structural design included with 1-bedroom plans and up, with foundation, framing, and detail sheets. Every set is coordinated with licensed Massachusetts professionals.
Documentation mapping the design to Boston's ADU requirements, so the reviewer isn't left guessing.
Site-specific adjustments by our principal engineer are part of every engagement — the set you file matches your property.
We produce the complete, filing-ready plan set and compliance documentation. You (or your contractor) submit it to the city — and because the set is built to Boston's requirements, review typically goes smoothly.
The most common factor is survey availability — if your property doesn't have a recent plot plan or survey, that can add time. Unusual site conditions can too. We flag anything like this up front.
Yes. We serve Cambridge, Newton, Brookline, and surrounding Greater Boston communities. Requirements vary by municipality; the site-specific tailoring accounts for your local rules.
No — we're a design and engineering firm, not a construction company. You receive a complete, permit-ready plan set and your contractor builds from it. That separation keeps our pricing fixed and our recommendations honest.
$3,500 for a studio, $4,000 for a 1-bedroom (with structural engineering), and $4,500 for the 2-bedroom set with full structural engineering — our most requested package.
Tell us about your property and we'll tell you what filing would take — plan recommendation, pricing, and timeline, usually within one business day.
