Unincorporated Somerset County, Maryland requires building permits and has county zoning administered through Planning and Zoning12. Princess Anne and Crisfield issue their own building permits and set their own zoning3456. Private septic and well approvals remain with Somerset County Health Department Environmental Health78. RV residence in unincorporated Somerset County is seasonal and tightly limited9.
At a glance
- Building permit
- Required for construction subject to county and state building standards1
- Zoning
- County zoning outside municipal limits; Princess Anne and Crisfield have their own zoning246
- Septic
- Private septic construction permits and site approvals through Somerset County Environmental Health8
- Private well
- A well construction permit is required10
- Tiny home
- Possible if it meets building, zoning, septic and site requirements11
- RV living
- Seasonal only in AR or by special exception in CO; prohibited as a temporary residence in other listed districts912
- Owner-builder
- Allowed for an owner's own use, but permits and a signed owner affirmation still apply13
Who to call
Building permits
Somerset County Department of Technical and Community Services - Planning and Zoning
County building permits, zoning, planning and floodplain questions; publishes the building permit form, county zoning resources and development fee schedule
11916 Somerset Avenue - Suite 211, Princess Anne, Maryland 21853
Septic permits
Somerset County Health Department - Environmental Health
Perc tests, lot evaluations, septic and private-well permits, system design requirements, inspections and well-water testing
8928 Sign Post Road, Suite 2, Westover, MD 21871
Contact details are copied from each office’s official page and were checked against it on October 12, 2026.
Off-grid gear
Going off-grid in Somerset County 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.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Somerset County, Maryland?
Somerset County requires building permits for construction governed by the Maryland Building Performance Standards; ask Planning and Zoning whether the specific work needs a building permit114. Somerset County has adopted the International Building Code and International Residential Code framework, including subsequent Maryland-adopted versions and county amendments15. The local jurisdiction inspects permitted work and issues appropriate use-and-occupancy certificates; project-specific requirements must be confirmed with the issuing office1617. An owner building directly and solely for personal use qualifies for the home-builder registration exception but must sign an owner affirmation and obtain applicable building permits and other authorizations13. Owner-performed home improvements have a separate contractor-license exception18.
Who issues building permits in Somerset County, Maryland?
Somerset County Department of Technical and Community Services, Planning and Zoning, handles county building, zoning and floodplain questions and publishes building permit, utility inspection and energy-compliance forms1914. The county publishes a development fee schedule, but individual building permit charges, required attachments and review times could not be confirmed; ask Planning and Zoning before filing2019. Inside Princess Anne, building permits come from the Town Code Enforcement Officer; Crisfield also issues its own building permits35. Private septic systems and wells remain under Somerset County Health Department Environmental Health review, including inside municipal limits where private systems are applicable7821.
Does Somerset County, Maryland have zoning?
Somerset County has an adopted zoning ordinance and county zoning maps; the county rules below concern unincorporated land222. Princess Anne and Crisfield have their own zoning, while private septic and well review stays with Somerset County Environmental Health468. Minimum lot area and setbacks depend on the district, dwelling type and applicable health, water, sewer and Critical Area requirements; there is no single lot-size figure to use for every rural home232425. Accessory dwellings are permitted by right in AR, require a special exception in CO and R-1, and are prohibited in I-1, I-2 and AP262728. In AR, the accessory unit must accompany an owner-occupied detached single-family home, be smaller than the main home and occupy no more than 50 percent of its living area26.
How do septic and well permits work in Somerset County?
Somerset County Health Department Environmental Health conducts perc tests, determines septic designs, issues private septic and well construction permits and inspects both systems8. None of Somerset County's mapped soils are rated free of severe limitations for a conventional drain field, so establish septic feasibility before buying29. Many lot evaluations must occur during the seasonal high-water-table period; contact Environmental Health before arranging a perc test8. Somerset County's interim individual sewage and water permit requires discontinuing those systems and connecting to community systems when community service becomes available30. Portable toilets cannot support occupation of a new structure and need approving-authority authorization when used longer than 3 days in a 60-day period31. A new well requires a Maryland well construction permit32.
Can you live in an RV or tiny home in Somerset County?
In unincorporated Somerset County, RV temporary residence is allowed by right in AR or by special exception in CO and prohibited in the other listed districts912. The allowance requires an active residential building permit, at least 5 acres, no electrical service, annual zoning approval and seasonal removal; occupancy cannot exceed 60 days per year or 14 consecutive days9. Campgrounds require a separate special exception in eligible districts and are prohibited in R-1, R-2 and R-3; campground approval does not replace the private-lot RV rules339. A tiny house regulated as a dwelling must meet Maryland residential-code, zoning, utility, septic and site requirements11. Newly placed manufactured homes in unincorporated Somerset County must be HUD-certified and have at least 720 square feet of dwelling floor area, excluding garages, storage rooms and porches, unless a stricter rule applies34. Homes over 10 years old need a third-party structural and code inspection; homes over 3 years old need electrical certification by a licensed electrician34. Ask Planning and Zoning to confirm the placement category and any special exception, especially for an AR parcel whose acreage requirement could not be confirmed because the ordinance wording is inconsistent3414.
Building a home in Somerset County: what are the steps?
- Ask Somerset County Planning and Zoning to confirm jurisdiction, zoning district, permitted use, setbacks and required applications222514.
- Contact Environmental Health early for the lot evaluation, perc test, septic design and well-permit path832.
- Check flood status: all development in the 100-year floodplain needs a local permit, and work in the 100-year nontidal floodplain also requires a State Waterway Construction Permit3536.
- Resolve access; work on a residential driveway within a state right-of-way needs the applicable highway permit37.
What should you check before buying land in Somerset County?
Confirm Somerset County jurisdiction, zoning, lot dimensions, setbacks and septic feasibility before closing2224258. Outside incorporated towns, subdivision requires an approved, recorded plat; covered lots cannot be sold or receive a zoning permit before final plat recording and construction or guarantee of required improvements38. The agricultural subdivision exemption requires each tract to be at least 20 acres, retain its agricultural use, add no residence or new street and undergo zoning review39. Environmental Health separately lists subdivision plat-review fees of $200 for 1–5 lots and $50 per lot for 6 or more lots40. Preserved open space can restrict buildings to customary agricultural or non-commercial recreation buildings allowed by its conservation easement or deed restriction; confirm current requirements with Planning and Zoning4114. Check floodplain and wetlands permits, and obtain the applicable highway permit for residential driveway work within a state right-of-way353637.
Watch-outs
- An RV used as a temporary residence is limited to the seasonal AR allowance or a CO special exception and is prohibited in the other listed unincorporated zoning districts912.
- Septic feasibility can control whether a rural lot is buildable because none of the county's mapped soils are rated free of severe limitations for a conventional drain field29.
- Somerset County's interim individual sewage and water approval requires connection to community systems when those systems become available30.
- The agricultural subdivision exemption applies only to qualifying tracts of at least 20 acres with no land-use change, new residence or new street39.
Sources
- Maryland Public Safety Article § 12-505, quoted and re-checked
- Planning and Zoning, quoted and re-checked
- Town of Princess Anne: Chapter 52: Building Construction - Town of Princess Anne, MD (Somerset County), quoted and re-checked
- Town of Princess Anne: Article VIII: Zoning Districts - Town of Princess Anne, MD (Somerset County), quoted and re-checked
- Crisfield: City of Crisfield Building Packet (Somerset County), quoted and re-checked
- Crisfield: Chapter 112 Zoning (Somerset County), quoted and re-checked
- Wells & Septics, quoted and re-checked
- Somerset County Health Department - Environmental Health (somersethealth.org)
- Somerset County Zoning Ordinance — June 2025 Amendments, quoted and re-checked
- Well Construction Permit Applications and Forms (Maryland statewide rule), quoted and re-checked
- COMAR 09.12.51 Maryland Building Performance Standards, quoted and re-checked
- Somerset County Zoning Ordinance – June 2025, quoted and re-checked
- mgaleg.maryland.gov, quoted and re-checked
- Somerset County Department of Technical and Community Services - Planning and Zoning (somersetmd.us)
- Somerset County Building Code Ordinance No. 1094, quoted and re-checked
- Maryland Public Safety Article § 12-505, quoted and re-checked
- Maryland Public Safety Article § 12-505, quoted and re-checked
- mgaleg.maryland.gov, quoted and re-checked
- Planning and Zoning, quoted and re-checked
- Planning and Zoning, quoted and re-checked
- Crisfield: Wells and Septics (Somerset County), quoted and re-checked
- Planning and Zoning, quoted and re-checked
- Somerset County Zoning Ordinance, quoted and re-checked
- Somerset County Subdivision Ordinance, quoted and re-checked
- Somerset County Subdivision Ordinance, quoted and re-checked
- Somerset County Zoning Ordinance – June 2025, quoted and re-checked
- Somerset County Zoning Ordinance – June 2025, quoted and re-checked
- Somerset County Zoning Ordinance – June 2025, quoted and re-checked
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- Sewage Permit – Septic System New Construction, quoted and re-checked
- dsd.maryland.gov, quoted and re-checked
- Well Construction Permit Applications and Forms, quoted and re-checked
- Somerset County Zoning Ordinance – June 2025, quoted and re-checked
- Somerset County Zoning Ordinance – June 2025, quoted and re-checked
- Regulations for Floodplain Development, quoted and re-checked
- Regulations for Floodplain Development, quoted and re-checked
- Access Management/Permits - MDOT SHA (Maryland statewide rule), quoted and re-checked
- Somerset County Subdivision Ordinance, quoted and re-checked
- Somerset County Subdivision Ordinance, quoted and re-checked
- Fees, Licenses, Permits & Applications, quoted and re-checked
- Somerset County Zoning Ordinance, quoted and re-checked
Written October 12, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.