Building permits, zoning and land rules in York County, Maine

It depends on the municipality, because York County, Maine has no single countywide residential building-permit process; each town or city administers its local requirements¹. Municipalities with more than 4,000 residents must enforce MUBEC, while municipalities with up to 4,000 residents may choose enforcement and may not substitute a different building code³. Building owners must comply with MUBEC where it applies even if the municipality does not enforce it⁵.

In municipalities of more than 2,000 inhabitants, a building may not be occupied until the building official issues a certificate of occupancy based on required inspections⁹. A septic permit is still required before new, expanded, replacement or component installation work begins, apart from normal maintenance and repair⁶. Ask the municipality's Code Enforcement Officer which building permit, inspections and occupancy approval apply to the parcel².

In York County, Maine the building department is the town or city Code Enforcement Officer, not a single county permit office^1,2. For example, Biddeford's Code Enforcement Office at 205 Main Street issues building, plumbing and electrical permits; call (207) 284-9236 or email codespermits@biddefordmaine.org¹³. Biddeford charges $15 per $1,000 of value plus a $60 application fee, residential permits typically take 10 to 14 days, and inspections must be booked 48 hours ahead¹³. Those details apply only in Biddeford; other municipalities set their own building fees and timelines¹.

The York County Registry of Deeds at 45 Kennebunk Road in Alfred records deeds and plats and offers free property fraud alerts; call 207-324-1576¹⁴.

Not at the county level. Land use and zoning in York County are set by each municipality and administered by its Code Enforcement Officer². Lot sizes, setbacks and RV occupancy therefore depend on the municipality; the Town of York, for example, applies its zoning ordinance to all land within the town and sets front, rear and side yard setbacks by district^15,16. Biddeford, for example, administers its own shoreland zoning ordinance¹³.

York County municipalities must allow at least one accessory dwelling unit on a qualifying lot where a single-family dwelling is the principal structure⁷. The statewide minimum for an ADU is 190 square feet unless the state building-code board adopts a different minimum, and a municipality may set a maximum size¹⁷. That minimum applies to ADUs, not every dwelling¹⁷. Manufactured and qualifying modular homes must be allowed where other single-family homes are allowed, subject to permitted local design rules⁸.

The Maine CDC Subsurface Wastewater Unit administers the statewide rules, while a town's Local Plumbing Inspector examines applications and issues permits⁴. New, expanded and replacement systems—and individual components—need a permit before work begins, except normal maintenance and repair⁶. A licensed site evaluator or professional engineer prepares the application; an incomplete or nonconforming completed filing may be rejected in writing within 14 days⁶.

A complete non-engineered system has a scheduled $250 fee, but system type, components, surcharges and added municipal fees can change the total¹⁸. The system must pass a site-preparation inspection before installation and a final inspection before backfilling⁶. Only 4.2% of York County soils are free of severe limits for a conventional drain field, so complete the site evaluation before buying¹⁰. Primitive systems using graywater and an alternative toilet still require the applicable wastewater permit¹⁹.

We could not confirm a countywide rule for living in an RV in York County, because each municipality decides². As one example, the Town of York allows one recreation vehicle to be occupied overnight on a lot other than a campground for no more than one week per calendar year, and prohibits more units or longer stays¹¹. Ask your municipality's Code Enforcement Officer before buying. For a tiny home, Maine requires a municipality to permit a tiny home on a house lot where single-family dwellings are allowed, subject to the same land-use requirements, and building, septic and shoreland rules still apply¹². Maine's campground rule covers qualifying commercial campgrounds and does not answer whether a household may occupy an RV on its own lot²⁰.

An ADU has a clearer route: at least one must be allowed on a qualifying lot with a single-family home, subject to shoreland zoning, building and municipal requirements⁷. The 190-square-foot minimum is specifically for an ADU, not a blanket minimum for every tiny home¹⁷. Before an ADU can be certified for occupancy, the owner must verify adequate water and wastewater service; a septic connection requires verification by the Local Plumbing Inspector, while a well requires potable-water access and acceptable domestic-use testing¹⁷.

1. Call the town or city Code Enforcement Officer to confirm zoning, setbacks and the local building-permit process^1,2.
2. If the lot abuts a state roadway, obtain the required MaineDOT driveway permit before the town issues its permits; local rules normally govern access from local roads^21,22.
3. Hire a licensed site evaluator or professional engineer for the septic evaluation and design⁶.
4. Submit the wastewater application to the Local Plumbing Inspector and wait for the permit before starting covered work^4,6.
5. Apply for municipal permits and confirm how MUBEC inspections will be performed⁵.
6. Determine whether flood-prone development needs a Flood Hazard Development Permit²³.
7. Complete both septic inspections before final backfilling⁶.
8. Obtain a certificate of occupancy before moving in where the municipality has more than 2,000 inhabitants⁹.

Start with soils: only 4.2% of York County's soils rate well for a conventional drain field, so make the purchase contingent on a passing site evaluation¹⁰. Pull the deed and recorded plats at the York County Registry of Deeds¹⁴. If the parcel abuts a state roadway, verify that its entrance has the right MaineDOT approval; an older curb cut is grandfathered only for its existing use, and a change of use or physical alteration requires a new permit²¹.

York County is 82.4% wooded, and 88.8% of its land has a slope of 15% or less¹⁰. Annual precipitation is about 49 inches, so investigate wet soils and drainage¹⁰. Farmland averages $7,643 an acre and a typical home is valued around $537,224¹⁰. The effective property tax rate is about 1%, with a median annual bill of $3,691¹⁰.