Zoning, building permits and septic rules in Town of Acton, Maine

Town of Acton’s own rules

• Building permitRequired

  All buildings, uses and sanitary facilities inside Acton town

  • Construction may proceed only after the plumbing permit and then the building permit are issued, in that order.
  • Permit procedure is set in Article 6 of the zoning ordinance, which was not opened within the research budget.

  “a plumbing permit and building permit (in that order) shall be required for all buildings, uses and sanitary facilities, according to the provisions of article 6 of this ordinance.”

• Local zoningPresent (with conditions)

  All land inside Acton town limits; the Town of Acton adopts and administers its own zoning ordinance (Town of Acton Zoning Ordinance, amended April 11, 2026).

  • Uses are permitted only as listed in the land use chart for the district where the land lies.
  • Use not listed in the land use chart is prohibited.

  “no building, structure, land or water area shall be used for any purpose or in any manner except as permitted within the district in which such building, structure, land, or water area is located.”

• Zoning districtsPublished (with conditions)

  Zoning districts that the Town of Acton has adopted inside Acton town

  • The district map and boundary descriptions were not opened.
  • District names listed here are from the land use chart header.

  “village area transition area (2-acre) rural area (2-acre) critical rural area (5acre) commercial a commercial b commercial c mixed use resource protection shoreland little ossipee aquifer protection district”

• Minimum lot sizeDistrict specific (with conditions)

  Land in the Transition Area (2-acre) and Rural Area (2-acre) districts inside Acton town, as labeled in the land use chart header

  • The 2-acre figure is taken from the district label in the land use chart header; the numeric dimensional table was not located within budget.
  • Lot standards also must meet road frontage requirements (section 2.6.3) and shore frontage rules where applicable.
  • Non-conforming lots are governed by article 1.4.

  minimum lot size: 2 acres (district label only; confirm against the dimensional table)

  “village area transition area (2-acre) rural area (2-acre) critical rural area (5acre) commercial a commercial b commercial c mixed use resource protection shoreland little ossipee aquifer protection district”

  One more reviewed finding on this topic

  • District specific (with conditions) — Land in the Critical Rural Area (5-acre) district inside Acton town, as labeled in the land use chart header

    “village area transition area (2-acre) rural area (2-acre) critical rural area (5acre) commercial a commercial b commercial c mixed use resource protection shoreland little ossipee aquifer protection district”

• Building heightSpecified

  Principal buildings inside Acton town under the general lot standards (section 2.6.2), not a district-specific limit

  • Chimneys are excepted.
  • Features of detached accessory buildings may exceed 35 feet but must be set back from the nearest lot line at least their height, unless another provision requires more.

  maximum building height: <= 35 feet (chimneys)

  “2.6.2 no portion of a building shall exceed thirty-five (35) feet in height except chimneys.”

• Living in an RVLimited

  Occupying a recreational vehicle (RV) on a private lot inside Acton town, outside licensed parks and campgrounds

  • Only one RV may be placed on a lot unless the lot is licensed by the Maine Department of Health and Human Services as a mobile home park or campground.
  • An RV that stays on a lot more than seven (7) days must be reported to the local plumbing inspector.
  • An RV may not be occupied more than six (6) months in any year.
  • Placement must meet setbacks for structures; sewage and grey water must follow Maine subsurface wastewater rules.
  • Standards do not apply to RVs that are stored and not used as sleeping or living quarters.

  maximum RVs per lot (unlicensed lot): 1 RV (lots licensed as mobile home park or campground) · maximum occupancy period: <= 6 months per year · registration threshold: > 7 days

  “under no circumstances will an rv be occupied for more than six (6) months in any year.”

• Tiny homesLimited

  Tiny homes as a residential use inside Acton town, in districts where the land use chart lists 'k. tiny homes' as CEO review

  • The land use chart lists tiny homes as 'r' (CEO review) in every listed district except the resource protection district, where the chart lists 'n' (not permitted).
  • A permit may be required after CEO review.
  • Column alignment of the chart row was read from the text layout and should be confirmed against the printed chart.

  “r = ceo review (use must be reviewed by ceo and a permit may be required)”

• Manufactured homesLimited

  Manufactured housing parks inside Acton town; single manufactured homes on individual lots were not verified

  • Manufactured housing parks require subdivision review (sd) in the land use chart and must meet section 5.13 standards.
  • Lots in a manufactured home park served by individual waste disposal systems need at least 20,000 square feet and 100 feet of width; overall park density is not to exceed one dwelling per 20,000 square feet of total park area.

  minimum lot area (park lot served by individual waste disposal): >= 20000 square feet (lots served by a central subsurface waste disposal system approved by the Maine Department of Health and Human Services: 20,000 square feet and 75 feet width)

  “5.13.3.2 lot area and lot width dimensions. notwithstanding the dimensional requirements located in this ordinance, lots in a manufactured home park shall meet the following lot area and lot width requirements:”

• Accessory dwellingsLimited

  Accessory dwelling units (ADU) on residential lots inside Acton town in the districts where the land use chart lists 'b. accessory dwelling unit (adu)' as CEO review

  • Only one ADU is allowed, located within or detached from an owner-occupied single-family dwelling.
  • The lot must meet all current dimensional requirements for the district.
  • The unit may contain no more than 800 square feet.
  • Construction must meet applicable building codes and subsurface wastewater disposal rules.
  • The land use chart marks ADUs 'n' (not permitted) in resource protection, shoreland and Little Ossipee districts.

  maximum ADU floor area: <= 800 square feet

  “the unit shall contain no more than eight hundred (800) square feet;”

• Subdividing landRegulated (with conditions)

  Dividing land into three or more lots within five years inside Acton town

  • The land use chart marks 'sd = subdivision review' for certain uses.
  • Acton subdivision regulations are referenced in the zoning ordinance and were not opened.

  lots that trigger subdivision: >= 3 lots (within a five (5) year period)

  “subdivision – the division of a tract or parcel of land into three (3) or more lots, in a five (5) year period, for the purpose, immediate or future, of lease, sale, development, or building”

• Driveway accessLimited

  New lots and buildings that take access from a road inside Acton town

  • New lots must front on a road meeting Acton road standards (Level A, B or C).
  • Where a vacant non-conforming lot lacks road frontage, a deeded right-of-way at least 30 feet wide must lead to the buildings (section 1.4.7.1).
  • Driveway permit or design standards were not located.

  minimum right-of-way width (no road frontage case): >= 30 feet (non-conforming vacant lot (section 1.4.7.1))

  “2.6.3 any new lot shall meet minimum road frontage requirements for the district in which the frontage is located, and the road frontage must be based on the horizontal distance between the intersections of the side lot lines with the front lot line along a road that meets the town of acton road standards (level a, b, or c).”

• Building in a floodplainLimited

  Residential uses in the Little Ossipee River District (within 500 feet of Balch Pond and the Little Ossipee River) inside Acton town

  • No structures or fill are permitted in the flood plain in this district.
  • Town-wide floodplain management rules were not opened.

  “a) no structures or fill shall be permitted within the flood plain.”

• Permit processPartial

  Building and plumbing permit process inside Acton town

  • Plumbing permit comes first, then the building permit.
  • The step-by-step procedure, forms and fees are in Article 6 of the zoning ordinance, which was not opened.

  “a plumbing permit and building permit (in that order) shall be required for all buildings, uses and sanitary facilities, according to the provisions of article 6 of this ordinance.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Town of Acton or York County directly.

• Owner-builder exemption — Owner-builder exemption from permit or licensing rules inside Acton town
• Building code adopted — Building code adopted by Acton town
• Inspections — Building inspections inside Acton town
• Certificate of occupancy — Certificate or permit of occupancy for new buildings inside Acton town
• Minimum dwelling size — Minimum floor area for a dwelling inside Acton town

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Off-grid gear

Going off-grid in Town of Acton means bringing your own water and power. The kit we’d start with:

• Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
• Power Bluetti Solar generators and home battery backup for living off the grid.
• Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
• Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.

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