A custom home builder in Kennebunk, ME first asks which side of the Maine Turnpike your lot sits on. East of it, sewer reaches most parcels; west of it, a three-acre lot carries its own well and septic.
This page covers building a new custom home in Kennebunk, Maine, a York County town split by the Maine Turnpike: sewer lots mostly to the east, rural three-acre lots with a well and septic to the west. The service is a ground-up house on the owner's land, from site work through finishes.
It is for owners who want a house built to their lot and their plan rather than buying an existing one. In Kennebunk that can mean a Historic Preservation Commission review on Summer Street or a shoreland and flood check near the beaches and rivers.
We price each side of town on its own site costs. Most important: across many builds, a turnkey Kennebunk house averages $285 to $445+ per square foot before land, with well, septic and site work priced separately.
The Turnpike splits a Kennebunk build budget because the Kennebunk Sewer District serves about half the town's homes, mostly east of the highway, and the town plan rates most soils on that side very low for septic.
East-side lots tied to the sewer district, with its connection approval filed alongside the permit
Three-acre West Kennebunk lots priced with the well, septic and driveway in
Summer Street lots taken to the Historic Preservation Commission before any building permit
Your lot walked first
Written price, line by line
An update every week
Neighboring towns
Kennebunk zoning sets lot size, coverage and design review before any floor plan is final.
The Rural Residential and Rural Conservation districts ask for three acres, 200 feet of width and 15 percent coverage at most, with no public water or sewer.
Around Alfred Road the town plan maps permeable, well-drained Adams soils that suit a septic field, though test pits still set the design.
Summer Street became Maine's first historic district in 1963 and is still a regulatory overlay, reviewed by the Historic Preservation Commission.
Its design guidelines ask a new house to follow its neighbors in scale, setback, roof form and materials, so we draw to that standard from the start.
Kennebunk's shoreland zone reaches 250 feet from the Atlantic, the Mousam and Kennebunk rivers, Branch Brook, Alewive Pond and Old Falls Pond. Eroding banks along Branch Brook and the two rivers fall in Resource Protection.
The town works from FEMA flood maps effective July 17, 2024, which put the beachfront in a high-hazard VE zone. A house there needs an open foundation on piles, settled before the floor plan.
Most Kennebunk builds draw on three of our services.
Kennebunk's Code Enforcement office wants a scaled lot plan showing wetlands and water, a statement of use, and a septic design or the sewer district's approval. We assemble that set with every application.
We walk your Kennebunk lot, confirm sewer or septic, and book test pits where a field would go.
Plans are finished, the commission sees them first if the lot is in the district, and your price arrives in writing.
We pull the permit, send a weekly update, line up the well test before occupancy and walk the finished house with you.
You choose a custom home builder in Kennebunk, ME by asking how they will prove water and wastewater, because the town wants that proof before a certificate of occupancy. Put the septic plan and a passing well test in the schedule from week one.
Ask how their walls meet the energy code. Kennebunk adopted MUBEC by reference in November 2012 and now enforces the 2021 residential and energy codes.
Then ask how they price the two halves of town: one per-foot number for a beach sewer lot and a three-acre West Kennebunk lot means nobody looked at either.
The Historic Preservation Commission approves a new house in Kennebunk's historic district, through a certificate of appropriateness that has to come before any building permit.
Public water is missing mainly in Kennebunk's rural west and south, near the Sanford, Lyman and Wells lines. Overall the water district reaches about 72.5 percent of households, and whoever asks for a main extension pays for it.
Kennebunk issues the building permit within 30 days of a complete application, once every other required permit is in hand, and no digging starts before it.
A new house in Kennebunk costs about $285 to $445+ per square foot to build, turnkey, before the land. Those are averages from many builds, not a quote.
| Finish tier | What it usually means | Average per sq ft | A 2,000 sq ft house |
|---|---|---|---|
| Simple and efficient | Vinyl siding, shingle roof, a plain cape | $285 to $330 | $570,000 to $660,000 |
| Mid-range custom | Fiber cement siding, fiberglass windows | $330 to $395 | $660,000 to $790,000 |
| High detail | Wood windows, cedar shingles, period trim | $395 to $445+ | $790,000 to $890,000+ |
Turnkey Kennebunk averages, land excluded. Sewer hookups, wells, septic and site work are separate lines.
A drilled well averages $14,000 to $24,000 and a septic system $16,000 to $40,000 on a Kennebunk lot that needs them. East of the Turnpike most lots can use the sewer district instead.
Site work on a cleared, utility-ready Kennebunk lot adds roughly $70,000 to $95,000, well, septic and power included. A wooded West Kennebunk parcel with ledge or a long driveway can carry site work past $150,000.
Finish choices move a Kennebunk house most, and matching historic neighbors pushes a district house up. A basement costs more than a frost wall and slab; in-house crews hold schedules, hired specialists bring depth.
Your lot's side of the Turnpike tells us where Kennebunk site costs start. Send a free estimate request and we will walk it and write those costs down.
