Tiny homes in Silver Spring, Maryland — zoning rules, THOW parking, builder costs, and what you need to know before buying.
Last researched May 2026
Silver Spring sits immediately north of Washington, D.C. along the Metro Red Line, and the Purple Line extension is bringing additional east-west transit access — which makes Silver Spring unusually well-suited to car-light tiny living compared with most of Maryland. The climate is humid subtropical with four distinct seasons, hot and humid summers, mild winters with occasional snow, and damp springs; tiny homes should be specified with strong humidity management. Downtown Silver Spring's walkable AFI Silver theater, farmers market, and restaurant scene, plus Rock Creek Park to the south, give tiny-home residents a rich urban-edge lifestyle. Combined with Montgomery County's permissive ADU rules and the proximity-to-transit parking waiver, Silver Spring is one of the most realistic addresses in Maryland for a legal, full-time tiny-home life.
Silver Spring is an unincorporated census-designated place in Montgomery County, Maryland, which means tiny-home zoning is governed by Montgomery County Planning and the Department of Permitting Services (DPS), not by a separate municipal code. Foundation-built tiny homes in Silver Spring must meet the Maryland Building Performance Standards — Maryland adopted the 2018 IRC including Appendix Q (effective March 25, 2019), which relaxes requirements for lofts, ladders, compact stairs, ceiling heights, and emergency escape openings for houses 400 sq ft or less.
Montgomery County is Maryland's most ADU-friendly jurisdiction thanks to ZTA 19-01 (adopted 2019). Detached ADUs no longer require one-acre minimum lots, the minimum-distance-between-ADUs rule was eliminated, and the extra-parking requirement is waived within one mile of Metro, Purple Line, or MARC stations — a waiver that applies to much of Silver Spring given the Red Line and Purple Line footprint. Attached ADUs can be up to 1,200 sq ft; detached ADUs cap at the smaller of 10% of lot size, 50% of principal-dwelling footprint, or 1,200 sq ft. All ADUs must be licensed with Montgomery County DHCA, and short-term rental use is prohibited. THOWs are classified as RVs and cannot be used as permanent residences on private Silver Spring lots.
Verify current requirements with your local planning department before purchasing land or beginning construction.
Verify current requirements with your local planning department.
Silver Spring's ADU rules are Montgomery County's rules, which are among the most favorable in Maryland. Attached ADUs can reach 1,200 sq ft — or match the primary dwelling's footprint if located in a basement or cellar. Detached ADUs cap at the smaller of 10% of lot size, 50% of the principal dwelling's footprint, or 1,200 sq ft. ADUs cannot be in a townhouse, condo, duplex, or mobile home, and they cannot be used as short-term vacation rentals. The owner must occupy either the principal dwelling or the ADU. Parking: one off-street space per ADU is required in addition to the two normally required for a detached house, but the extra space is waived within one mile of Metro, Purple Line, or MARC stations — which covers most of Silver Spring near the Red Line and the future Purple Line. Outside that one-mile radius, three total off-street spaces are required. Building permits go through DPS; an operating license is required from Montgomery County DHCA. Foundation-built tiny homes that meet IRC Appendix Q can be permitted as detached ADUs.
Communities, RV parks, and parking options in and near Silver Spring.
THOWs cannot be permanently sited on private residential lots in Silver Spring as of April 2026 — Montgomery County zoning does not permit year-round RV occupancy, and Maryland classifies THOWs as recreational vehicles rather than dwelling units. The closest practical long-term RV-park options are outside Montgomery County entirely, typically in Frederick County to the north or in Anne Arundel County to the east. Typical long-term Maryland RV-park rates run $600–$1,200 per month including utilities, but availability is limited near the DC-Maryland urban core and many parks cap year-round stays. Confirm with any park that full-time residency is explicitly permitted, and check that the site has 30/50-amp service plus adequate sewer hookup for your rig before signing. For tiny living actually inside Silver Spring, a foundation-built ADU on an existing lot under Montgomery County's ZTA 19-01 rules is the legal path — not a THOW.
co-housing
7981 Eastern Ave, Silver Spring, MD
56-unit LEED Silver-certified multigenerational cohousing community in downtown Silver Spring, a few blocks from the Silver Spring Metro. Residents own private condo units and share a common house, courtyard, and other facilities; governance is consensus-based.
co-housing
6827 4th St NW, Washington, DC (adjacent to Silver Spring, MD border)
DC's only cohousing community: 43 privately owned townhouses and flats (sizes 658-1,921 sq ft) clustered around a common piazza, with geothermal HVAC and rooftop solar. Two blocks from Takoma Metro, walking distance to the MD line.
rv-park
9800 Cherry Hill Rd, College Park, MD (~10 mi E of Silver Spring)
Year-round full-hookup RV resort offering daily, weekly, and monthly rates plus cabins and yurts, with shuttle to the College Park Metro.
Greenwood, Delaware
Award-winning Delaware custom home and ADU builder serving Sussex and Kent counties in Delaware and the Eastern Shore of Maryland since 2003. Known for Amish-built construction methods, energy-efficient design, and 1,000+ completed homes. Offers dedicated ADU services and small-footprint custom plans.
Service areas: Delaware, Maryland
Mathews, Virginia
Mathews, Virginia coastal tiny home builder located on the Chesapeake Bay. A subsidiary of Bayside Joinery Company, the team brings over 30 years of fine woodworking experience to tiny home construction and has been building tiny homes for approximately 15 years. Known for custom interior woodwork including exposed beams, hand-crafted cabinetry, and bespoke built-in furniture. All standard models are fully customizable; bespoke designs are welcome. Pricing starts around $60,000 as of May 2026.
Service areas: Virginia, Maryland, North Carolina
Greenwood, Delaware
Delaware's only factory-based off-site stick-built modular home builder, operating from a facility in Greenwood since 2003. Builds single-family cottages, small homes, ADUs, duplexes, and townhouses — with small-footprint designs starting around 400 sq ft — for clients in Delaware, Maryland, and parts of Virginia, Pennsylvania, and New Jersey.
Service areas: Delaware, Maryland, Virginia, Pennsylvania, New Jersey
Berryville, Virginia
Berryville, Virginia THOW builder and workshop host run by Robin Hayes, a Green Advantage Certified Builder with over 40 years of construction experience. Offers custom-built tiny homes on wheels and hands-on build workshops held in Clarke County, VA each spring and fall. Serves Virginia and the broader East Coast, with delivery across the U.S. Custom builds range from approximately $30,000 for owner-assisted projects to $60,000 or more for fully built homes, as of May 2026.
Service areas: Virginia, Maryland, Washington DC, North Carolina, South Carolina, Georgia, Florida
Damascus, Oregon
Oregon-based pre-engineered building kit manufacturer offering prefab cabin kits (including the 495 sq ft Mazama model) and backyard ADU kits shipped nationwide. Founded in 2002 alongside sister company DC Builders; maintains Delaware-specific design and pricing resources for cabin and ADU projects.
Service areas: Delaware, Maryland, Virginia, Pennsylvania, New Jersey, New York, Oregon
Oakland, Maryland
Hobbitat is a small and tiny house company founded in January 2012 by Bill and Sue Thomas in Oakland, Maryland. Their houses—called hobs—range from 225 to 1,200 sq ft and are hand-built using reclaimed and repurposed materials. Serving clients in the Deep Creek Lake area and Garrett County with a turn-key operation from design through finished construction (as of April 2026).
Service areas: Maryland, Western Maryland
A comparison between tiny-home living and conventional homeownership in Silver Spring.
Tiny home path
Traditional home path
Potential monthly savings
$1,400–$2,400/mo
Source: Zumper, Zillow, Redfin (March/April 2026)
Verified links for planning, permitting, and community connections in Silver Spring.
Yes, as a detached ADU under Montgomery County's ZTA 19-01 rules. The tiny home must be on a permanent foundation, meet IRC Appendix Q if under 400 sq ft, be licensed with Montgomery County DHCA, and be no larger than the smaller of 10% of lot size, 50% of the principal dwelling footprint, or 1,200 sq ft.
No. Maryland classifies THOWs as recreational vehicles, and Montgomery County does not allow permanent RV occupancy on private residential lots. The closest legal long-term options are RV parks outside the county in Frederick or Anne Arundel.
If your lot is within one mile of a Metro, Purple Line, or MARC station, Montgomery County waives the extra ADU parking requirement. Much of Silver Spring near the Red Line qualifies. Outside that one-mile radius, three total off-street spaces are required.
Custom tiny homes in Maryland generally run $50,000–$180,000, with Montgomery County labor and permit costs pushing toward the higher end. Tiny-home builders in nearby Rockville quote roughly $200–$400 per square foot fully finished.
No. Montgomery County explicitly prohibits using an ADU as a short-term vacation rental. ADUs are for long-term residential use only.
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