Natalie’s Library
Do I need a permit for a home addition in Montgomery Village?
Natalie’s answer
“Most home additions in Montgomery Village require permits from Montgomery County for any structural, electrical, plumbing, or mechanical work, while purely cosmetic changes like painting typically do not. MOSS handles the entire Montgomery County permitting process for you as part of their design-build service.”
Yes, a home addition in Montgomery Villagealmost certainly requires one or more permits from Montgomery County's Department of Permitting Services. Any work that is structural in nature, meaning new walls, a new foundation, roof framing, or changes to load-bearing elements, triggers a building permit. Beyond the structure itself, the electrical, plumbing, gas, and mechanical systems that serve the new space each require their own permit coverage, and egress requirements such as properly sized windows or exterior doors are reviewed as part of thatprocess. Cosmetic finishes like painting, flooring, or cabinet hardware swaps generally do not require permits, but in an addition those finishes sit on top of permitted work anyway. Montgomery County's review timeline runs roughly 10 to 15 business days for an initial plan review, with any required revision cycles adding approximately 7 to 10 business days, and a complete application typically reaches permit issuance within 20 to 30 days.
Under MOSS's design-buildmodel, pulling the permit is our responsibility, not yours. Our team prepares the detailed, to-scale drawings and project documentation that Montgomery County requires, assembles and submits the full application package to the Department of Permitting Services, and then schedules every required inspection as construction progresses. You never have to navigate the county's forms, revision requests, or inspection coordination, that administrative work runs in the background while you focus on the design decisions that make the addition your own.
Permitting is ultimately what protects you. County inspections confirm that the structural, electrical, plumbing, and mechanical work meets current code, which means the space is genuinely safe for your family to live in. It also protects your investment: unpermitted additions can create serious complications when you sell, refinance, or file an insurance claim. One additional layer worth knowing about in Montgomery Village is that many neighborhoods have homeowners association guidelines governing exterior modifications visible from the street. MOSS is experienced in navigating both Montgomery County's permitting requirements and any applicable HOA covenants together, so both approvals move forward in parallel rather than creating surprises late in the process.