Zoning, building permits and septic rules in Rehoboth Beach, Delaware
Rehoboth Beach is a city in Sussex County, Delaware. Rehoboth Beach adopts its own zoning, so inside its limits Rehoboth Beach’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 Rehoboth Beach
Rehoboth Beach’s own rules
Building code adoptedAdopted
Residential building construction inside Rehoboth Beach city, under the city's Chapter 102 Building Construction.
Chapter 102 was adopted by the commissioners 9-17-2007 by Ord. No. 0907-02 and amended in its entirety 10-18-2013 by Ord. No. 0113-01 per the eCode360 history note.
Article XV adopts a residential code by § 102-44; Article XVI modifies it (§ 102-45 through § 102-54).
Article I (§ 102-1) adopts a building code and § 102-1.1 addresses stormwater management. Article II (§ 102-2) substitutes the city's name for the model-code jurisdiction placeholder.
The model-code editions named in § 102-1 and § 102-44 were not opened.
“article xv adoption of residential code § 102-44 adoption of standards.”
Local zoningPresent
Land inside Rehoboth Beach city limits: the city's own zoning ordinance, Chapter 270 Zoning of its adopted code, is titled the "Rehoboth Beach Zoning Ordinance" and divides the city into zoning districts.
§ 270-9(a): any land located in the city not shown as lying within any district on the zoning map is deemed to be in the O-1 open space district.
§ 270-9(b): land annexed into the city is deemed to be in the R-1 single-family residence district until otherwise shown on the zoning map.
Dimensional, use and occupancy rules are in the district and use provisions of Chapter 270, which were not all opened for this record.
“the city shall be divided into districts more particularly described and shown upon the rehoboth beach zoning map.”
Zoning districtsPublished
Zoning districts of Rehoboth Beach city, as designated in § 270-6 of its zoning chapter.
Districts named in § 270-6 are R-1(S) special single-family residence, R-1 single-family residence, R-2 general residence, C-1 central commercial, C-2 commercial-amusement, C-3 secondary commercial, ER educational/residential, CM cemetery and O-1 open space.
The zoning map is incorporated by § 270-7; the map itself was not opened, so district boundaries are not confirmed here.
“r-1(s) special single-family residence district r-1 single-family residence district r-2 general residence district c-1 central commercial district c-2 commercial-amusement district c-3 secondary commercial district er educational/residential district cm cemetery district o-1 open space district”
Accessory dwellingsProhibited
Using a structure other than the main building on a lot as a dwelling or dwelling unit (accessory dwelling) in the R-1 and R-1(S) districts inside Rehoboth Beach city. Other districts (R-2, commercial, ER, CM, O-1) are not addressed by this claim.
Excepts legal nonconforming uses existing on the date of the chapter.
The rule appears in the § 270-4 definition of accessory use; the district use tables were not opened to confirm whether any other provision permits an accessory dwelling in R-1 or R-1(S).
“in an r-1 and r-1(s) district, excepting legal nonconforming uses existing on the date of this chapter, use of a structure other than the main building on a lot, either in whole or in part, as a dwelling or a dwelling unit is not a permitted accessory use.”
Subdividing landRegulated
Division of land inside Rehoboth Beach city limits, under Chapter 236 Subdivision of Land and Site Plan Review.
The chapter's approval steps, thresholds and exemptions were not opened.
“chapter 236 subdivision of land and site plan review (§ 236-1 – § 236-36)”
Still unanswered
We looked and could not find an official answer yet. Silence is not permission; ask Rehoboth Beach or Sussex County directly.
Building permit — Building permit requirement for new homes inside Rehoboth Beach city
Owner-builder exemption — Owner-builder exemption from licensing or permit rules inside Rehoboth Beach city
Inspections — Building inspections for work inside Rehoboth Beach city
Certificate of occupancy — Certificate of occupancy for new homes inside Rehoboth Beach city
Minimum dwelling size — Minimum dwelling size in the R-1 and R-1(S) single-family districts of Rehoboth Beach city
20 more unanswered
Minimum lot size
Setbacks
Lot coverage
Building height
Living in an RV
Camping on your land
Tiny homes
Manufactured homes
Who permits septic
Septic permit
Septic inspection
Off-grid sanitation
Well permit
Mandatory utility hookup
Agricultural exemption
Driveway access
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 Rehoboth Beach 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 Rehoboth Beach means bringing your own water and power. The kit we’d start with: