The 10 ADU builders from Google's results for Baltimore, Maryland, ordered by Google rating weighted by review count. No firm pays to be listed or ranked.
Last updated
Licensing in Maryland. Maryland requires a Maryland Home Improvement Commission (MHIC) license for home improvement work.
on GoogleChurchville, MD
From Churchville, Lynch Design Build works as a design-build firm in Maryland, Pennsylvania and Delaware. It builds home additions and custom homes and remodels kitchens, bathrooms and master suites, along with whole-house renovations, outdoor living spaces and specialty projects.
(410) 879-5510 20 Carico Ln, Churchville, MD 21028
on GoogleBaltimore
Backyard Bobby's designs and builds detached guest houses, rental suites and in-law units in Anne Arundel County, Maryland. The contractor manages each accessory dwelling unit project from permits through the final punch list, adding space for family members or tenants.
on GoogleBaltimore
Design Build Remodeling Group takes on kitchen remodels, home additions and accessory dwelling units in Baltimore.
on GoogleAnnapolis, MD
Doug Pruett Construction builds accessory dwelling units around Annapolis, following a phased construction process from planning through completion. Its service area covers Anne Arundel, Calvert and Queen Anne's counties in Maryland, along with the Baltimore area.
(410) 224-4057 1932 Lincoln Dr d, Annapolis, MD 21401
on GooglePasadena, MD
Brucksch & Sons Remodeling builds accessory dwelling units in Anne Arundel County, Maryland, including backyard cottages and suites. The team handles design, permits and construction, along with zoning questions, utility connections and foundation work.
(443) 266-9979 8894 Fort Smallwood Rd, Pasadena, MD 21122
on GoogleJarrettsville, MD
Taylormade Contracting builds accessory dwelling units in the Jarrettsville, Maryland area.
(410) 214-5099 1944 Nelson Mill Rd, Jarrettsville, MD 21084
on GoogleSilver Spring, MD
UP Craftsmen builds ADUs in Montgomery County, Maryland, working out of Silver Spring. The team helps homeowners choose a location on the lot, secure permits and approvals under local codes, and look into financing options for the build.
(240) 478-5475 9108 Kingsbury Dr, Silver Spring, MD 20910
Baltimore
Maryland MicroNest builds steel-framed prefab ADUs and tiny homes for properties across the DMV area, including a model called The Chessie. The units are set up for use as rentals or as family living space in Maryland backyards.
Baltimore
Essential Custom Homes designs and builds accessory dwelling units, plus patios and other outdoor living areas, for Baltimore, Maryland properties. Typical projects include guest houses, rental suites and backyard retreats, with the company managing design, permitting and construction.
Baltimore
Serving the Baltimore area, JAT Construction Inc plans and builds accessory dwelling units on a design-build basis. Projects range from guest suites to backyard home offices, with the company managing the full job from design through construction.
In Baltimore, a garage conversion ADU typically costs $59,000 – $147,000. Remodeling labor in Baltimore runs about 2% below the US median, which accounts for most of the difference from the same project elsewhere.
These are the firms from Google's results for "adu builders baltimore", with directories, chains and suppliers removed. They are ordered by Google rating weighted by review count, and the ratings shown are Google's. No firm pays to be listed or ranked. The list was last updated in October 2026.
It depends on your city and state. California, Oregon and Washington have state laws that make ADUs allowed on most single-family lots. Elsewhere it is set by local zoning, so check lot size, setback and owner-occupancy rules with your city first.