DC basement ADU conversions require owner-occupancy, zoning approval, and code compliance. Costs range $100K–$250K+. Basement Remodeling handles permits, design, and construction in 2–4 months.
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Finecraft Contractors is a Washington D.C.-based general contracting company with 35+ years in residential renovation. Services include kitchen remodels, bathroom upgrades, room additions, and full home gut renovations, backed by transparent project management.
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Four Brothers Design + Build specializes in Accessory Dwelling Units (ADUs) across DC, Northern Virginia & Maryland. Services include basement apartments, garage conversions, in-law suites & detached ADUs.
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Glickman Design Build offers full-service ADU design and construction, including detached ADUs, granny flats, in-law suites & basement conversions. They handle permits, sustainable building, multigenerational layouts, remodeling, and rental income optimization.
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BBCDC Construction & General Contractors specializes in ADU development in Washington, DC, managing zoning compliance, permits, and construction for detached, semi-detached, and attached accessory dwelling units across all residential zones.
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Gold Rhino Modular Homes & Buildings offers innovative solutions, customizable designs, ready-to-ship units, and pre-configured packages for containerized modular homes, multi-unit modular structures, modular container offices, and commercial/industrial modular applications.
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Doug Pruett Construction Company, Inc. is a full-service ADU contractor specializing in detached ADUs, garage conversions, backyard cottages, and in-law suites. They manage design, permitting, and construction in-house, ensuring code compliance and efficient project delivery.
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Ben Norkin Architecture outlines ADU permit drawing requirements in Montgomery County, MD, covering site plans, zoning, drainage, floor plans, structural drawings, and energy compliance for detached ADUs, garage conversions, and backyard cottages.
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Montgomery County ADUs: ZTA 19-01 expanded accessory dwelling unit rules, removing bans on detached ADUs on small lots, lifting distance restrictions, easing parking near transit, and allowing garage conversions. Short-term rentals on ADU properties remain prohibited.
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Capital Dwelling is a Washington DC-based ADU specialist helping homeowners in the DMV region plan, design, and build accessory dwelling units. Services include feasibility assessments, permitting, architectural design, and construction management.
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JBL Construct LLC builds Accessory Dwelling Units (ADUs) in Northern Virginia, handling zoning, permits, design, and construction. Services cover basement conversions, garage conversions, and detached cottages. Costs range from $275–$400+ per sq ft.
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Back Creek Builders constructs ADUs and in-law suites in Maryland, handling design, permitting, and build. Project types include garage conversions, detached cottages, and basement suites. Founded by Eric Young and Jason Gelblum, they manage zoning compliance and full construction.
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Thomas Custom Builders designs & builds ADUs in Virginia, including detached units & in-law suites. Ideal for multigenerational living, rental income, or added property value. Experienced ADU contractor handling full construction, code compliance & planning.
read moreSilver Spring, Maryland is one of the most densely populated and culturally diverse communities in Montgomery County, featuring a vibrant mix of single-family homes, townhouses, and multi-unit properties. This urban character makes it an ideal location for Accessory Dwelling Units (ADUs), which help homeowners maximize property value while addressing the region's ongoing housing demand. Working with experienced ADU contractors in Silver Spring is essential to navigating the unique zoning landscape and building requirements specific to this community.
Since Silver Spring falls under Montgomery County jurisdiction, ADU contractors must comply with Montgomery County's zoning ordinances and permitting processes. Montgomery County has been proactive in expanding ADU allowances, and as of recent updates, ADUs are permitted in most residential zones. Key regulations include:
Given Silver Spring's mix of older bungalows, Cape Cods, and mid-century homes, skilled ADU contractors in the area frequently work on a variety of ADU types. The most common projects include:
Choosing a local ADU contractor familiar with Silver Spring and Montgomery County's permitting process can save significant time and money. Local contractors understand the specific requirements of the Montgomery County DPS, have established relationships with local inspectors, and are familiar with the neighborhood's architectural styles and utility infrastructure. They can also help homeowners take advantage of Montgomery County's ADU incentive programs, which have been designed to encourage affordable housing development.
Whether you're looking to generate rental income, house a family member, or increase your property's value, building an ADU in Silver Spring is a smart investment. Partner with a qualified, licensed ADU contractor in Silver Spring, Maryland who understands local codes, community standards, and the full permitting process to ensure your project is completed efficiently and up to code.