Bolthole Index

Sussex County, Delaware

Zoning, building permits and septic rules in Town of Henlopen Acres, Delaware

Town of Henlopen Acres is a town in Sussex County, Delaware. Town of Henlopen Acres adopts its own zoning, so inside its limits Town of Henlopen Acres’s rules apply, not the county’s. 5 rules below are quoted from official sources and independently re-checked, most recently on October 22, 2026. Rules for unincorporated land are on the Sussex County page.

Answers from the rulebook for Town of Henlopen Acres

Town of Henlopen Acres’s own rules

  • Building permitRequired

    Construction or alteration of buildings or structures inside Henlopen Acres town

    • A zoning certificate, issued by the office of zoning administration, must precede construction or alteration (§ 130-4 definition).
    • The chapter defines the zoning certificate as synonymous with the building permit.
    “written statement issued by the office of zoning administration, authorizing zoning sufficiency prior to the construction or alteration of buildings or structures. this term is synonymous with the term "building permit."”
  • Local zoningPresent (with conditions)

    All land and buildings inside the limits of Henlopen Acres town, under the town's own zoning chapter (Chapter 130, Henlopen Acres Zoning Ordinance)

    • Per § 130-2 the chapter governs the use of all land and any building in the town, including lot size and area.
    • The eCode360 table of contents states the code includes legislation through 07-08-2022.
    • Only Article I, Article II and Article IV (R-Residential) were opened; dimensional limits for the R-Residential district and the B, M and G districts are not yet recorded.
    “this chapter shall be known as the "henlopen acres zoning ordinance" and the zoning map hereto attached as "town of henlopen acres zoning map."”
  • Zoning districtsPublished (with conditions)

    All land inside Henlopen Acres town, by district

    • Four districts are enumerated: R-Residential, B-Recreational, M-Marine and G-Governmental (§ 130-5).
    • District boundaries are shown on the Town of Henlopen Acres Zoning Map, designated as Map 5 within the Henlopen Acres 2014 Comprehensive Plan (§ 130-6).
    • Only the R-Residential article was opened for district use rules; B, M and G district regulations were not opened.
    “the town of henlopen acres shall hereafter be divided into four districts, more particularly described and shown upon the town of henlopen acres zoning map, in which districts shall be designated as follows: a. r-residential district. b. b-recreational district. c. m-marine district. d. g-governmental district.”
  • Accessory dwellingsLimited

    Accessory buildings on lots in Henlopen Acres town; living quarters in an accessory building

    • Toilet rooms are prohibited in accessory buildings, except one sink with running water.
    • Sleeping facilities are prohibited in accessory buildings unless stored so they are not available for sleeping.
    • Whether a dwelling unit may be built as an accessory use in the principal building was not established.

    accessory building maximum floor size: <= 900 sq ft (other accessory structures: 48 sq ft maximum) · accessory building maximum height: <= 24 ft · other accessory structure maximum size: <= 48 sq ft

    “the size of the accessory building shall not exceed 900 square feet and 24 feet in height and shall not exceed one story; other accessory structures shall not exceed 48 square feet.”
  • Driveway accessLimited

    Driveways serving a lot in Henlopen Acres town where the driveway enters a town right-of-way

    • Width cap applies to the portion within the town right-of-way; driveway permit or access approval was not opened.

    driveway width within town right-of-way: <= 20 ft

    “an entrance or entrances to a property, used for ingress, egress and parking of vehicles, each of which may extend no more than 20 feet in width on a town right-of-way.”

Still unanswered

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

  • Owner-builder exemption — Owner-builder construction of a home inside Henlopen Acres town
  • Building code adopted — Building code for construction inside Henlopen Acres town
  • Inspections — Building inspections for new construction inside Henlopen Acres town
  • Certificate of occupancy — Occupancy of a new dwelling inside Henlopen Acres town
  • Minimum dwelling size — Minimum livable floor space for a single-family dwelling in the R-Residential district of Henlopen Acres town
18 more unanswered
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • Building height
  • Camping on your land
  • Tiny homes
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • Building in a floodplain
  • Short-term rentals
  • Permit fees
  • Permit process

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.

Unanswered questions are usually a sign that Town of Henlopen Acres publishes no rule on the point, not that none exists. Sussex County’s page lists the county offices to call.

Off-grid gear

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

These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.

← All of Sussex County: county rules, score and offices