ADU Builder in Richmond, ME
Standalone and garage-integrated accessory dwelling units, full systems, permitted right for Richmond's riverfront and inland lots.
An ADU in Richmond, ME is a full accessory dwelling unit: a small separate home with its own kitchen, bath, and systems, built either as a standalone structure or worked into a garage. We build both with the same crew.
Richmond has two very different kinds of lots. The riverfront sites need real drainage planning up front, while the inland lots toward Litchfield are usually simpler, so we sort out grading and water before anyone draws a floor plan.
The owner walks your site in person before any design or demo starts, and we confirm local zoning first so you know what fits. From there you get a straight answer on cost and timeline.
About our Richmond work
- Owner walks every site personally before design
- Riverfront and inland ADU experience
- Sagadahoc County focused
ADU builder work in Richmond
ME often means extra drainage planning on riverfront lots, compared to the simpler inland sites toward Litchfield.
- Local zoning confirmed before design work starts
- Riverfront drainage factored into site planning
- Same crew for standalone or garage-integrated builds
- 6Years building across Central Maine
- 30+Homes built, start to finish
- 1Owner who walks every job
Client Testimonials
What homeowners say
Overall, the experience was overwhelmingly positive, marked by consistently excellent communication.
Did a great job expanding my one car garage to a two car garage. They did exactly what I wanted, and then some.
Went above and beyond from start to finish.
Get your free estimate request sent in 60 seconds
Answer a few quick questions about your Richmond project. No pressure, no obligation, just a straight answer on cost and timeline.
Other services we offer in Richmond
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Find the shop
Directions from Richmond, ME to our shop in Augusta
219 Capitol St. Ste. 8Augusta, ME 04330
Site work and foundation for a Richmond ADU
Foundation, framing, and full residential systems, plumbing, electrical, and HVAC, planned around your Richmond property's drainage and septic capacity.
Standalone vs. garage-integrated in Richmond
Standalone units work well on Richmond's inland lots toward Litchfield. Garage-integrated ADUs suit tighter riverfront properties where site work is more constrained.
Finish work and full systems
Full kitchen or kitchenette, bath, and finish work sized to the actual use. Near the old shipbuilding district a rental unit is the common plan.
3 step process
How it works
Get your free estimate.
We walk the site and confirm what Richmond zoning allows before anything else.
Construction starts.
One crew stays with it from foundation to finish.
We walk it with you.
You approve the unit before we call it complete.
Worth knowing
ADU builder in Richmond, ME
Richmond sits on the Kennebec River, and its history as an ice-shipping and shipbuilding town means a lot of properties here are close to the water. That matters for ADU site planning: riverfront lots need drainage worked out before foundation work starts, while inland lots toward Litchfield are typically more straightforward.
ADU zoning rules vary town by town in Maine and change more often than most other permitting categories, so we always confirm current Richmond rules rather than assuming a blanket standard. Septic system capacity is a common gating factor, and we check it early so it doesn't stall a project mid-design.
Plan on 2 to 4 months minimum before groundbreaking, given the permitting and full residential-systems scope involved. Starting the zoning conversation early avoids delays later.
Town of Richmond Code Enforcement applies shoreland zoning near the Kennebec, on top of standard building permitting for any ADU.
Maine does not license general contractors or builders, so ask to see photos of past ADU projects specifically, and ask whether a contractor has handled riverfront drainage planning near the Kennebec before.
What it costs
How much an ADU costs in Richmond
What follows is a range. The quote comes later, after the site walk.
| Scope tier | What's included | Estimated range* |
|---|---|---|
| Small garage-integrated ADU | Kitchenette, bath, up to 400 sq ft | $60,000 to $110,000 |
| Standalone ADU, kitchenette | Full systems, up to 600 sq ft | $110,000 to $180,000 |
| Standalone ADU, full kitchen | Full systems, 600 to 900 sq ft | $180,000 to $280,000+ |
Riverfront lots near the Kennebec can add drainage work versus inland Richmond properties.
Does my Richmond property allow an ADU?
Richmond Code Enforcement handles this, with shoreland rules near the Kennebec. We confirm what applies before we design anything.
Can an ADU be built close to the Kennebec River in Richmond?
Yes, within shoreland zoning setbacks. We confirm the buildable scope and drainage plan before finalizing a design.
Do I need new septic capacity for an ADU in Richmond?
It depends on your existing system's capacity. We check this early since it's a common gating factor.
How long does an ADU build take in Richmond?
Give permitting 2 to 4 months minimum before groundbreaking. Build time depends on how big the unit is.
Next step
Ready to talk about your Richmond ADU
Contact us and we'll look at the site together, with straight answers on cost and feasibility.