
Home Additions in Chevy Chase, Maryland: What Homeowners Need to Know in 2026
Chevy Chase homeowners planning an addition face a step that catches almost everyone off guard. In Chevy Chase Village, no exterior change moves forward without approval from the Village government first. That includes additions, new decks, rooflines, and sometimes even window replacements. Only after the Village signs off can a Montgomery County permit application even be submitted.
This sequence trips up homeowners who assume the process works like it does everywhere else in the county. It also trips up contractors who don’t work in Chevy Chase regularly and submit to the county first, out of habit. Getting the order right from day one is the single most important piece of local knowledge for any Chevy Chase addition.
At H&C Construction Design Build, we serve Chevy Chase homeowners with Home Additions projects across Chevy Chase Village, Section 3, and Section 5. Here is what Chevy Chase homeowners should know before adding on in 2026.
The Chevy Chase Village Approval Process
Chevy Chase Village is an incorporated Maryland municipality with its own Board of Managers. Because of this, the Village functions as a genuine local government, not just an HOA. Its Building Officer reviews and approves exterior work before any county paperwork begins.
Sections 3 and 5 operate differently. These areas sit within unincorporated Montgomery County, so additions there go straight to Montgomery County DPS without the Village review layer. However, deed restrictions in some of these neighborhoods can still affect what’s allowed on the exterior.
Height restrictions apply throughout Chevy Chase. Most of the area caps building height around 35 to 40 feet. That directly limits how much a second-story addition can add without triggering variance review. Confirming this limit during design, not after drawings are finalized, avoids a costly redesign.
Contacting the Village early saves real time. The Chevy Chase Village office reviews addition plans on a set schedule. Building that timeline into the overall project calendar prevents the most common source of delay we see in this market.
What Home Additions Cost in Chevy Chase in 2026
Chevy Chase addition costs sit at the premium end of the Montgomery County market, reflecting both labor rates and the area’s finish expectations.
Single-story rear or side addition: $200,000 to $400,000. A family room, an expanded kitchen, or a sunroom-style addition typically falls in this range depending on size and finish level. Foundation work and matching the addition to the home’s existing roofline both affect the final number.
Second-story addition: $200 to $350 per square foot. Building up requires reinforcing the existing structure and adding a new staircase. Chevy Chase’s height restrictions often shape the design before cost ever enters the conversation.
Primary suite addition over a garage or family room: $150,000 to $300,000. This remains one of the most requested addition types in Chevy Chase, since it adds meaningful square footage without expanding the home’s overall footprint.
Budgeting for the unexpected. Add a 15 to 20 percent contingency to any Chevy Chase addition estimate. Homes built in the early twentieth century commonly reveal foundation or framing surprises once construction actually begins.
Why Chevy Chase Additions Require Extra Planning
Architectural matching matters as much as square footage. A poorly matched addition stands out immediately in a neighborhood known for architectural consistency. Rooflines, brick coursing, and window proportions all need to read as original rather than added later.
Structural engineering is required for anything built up. An engineer has to confirm the existing foundation and framing can support the added weight of a second story. This step belongs in the design phase, well before Village or county submission.
Mature trees and tight setbacks shape what’s possible. Many Chevy Chase lots have significant tree canopy and established landscaping that constrain where an addition can go. Site assessment early in design prevents surprises once construction crews arrive.
The Permit Process for a Chevy Chase Home Addition
Village approval comes first when it applies. Confirming whether your property falls within Chevy Chase Village, Section 3, or Section 5 determines the entire sequence. This is always the first call to make.
Montgomery County DPS review follows Village approval. Standard review for residential additions typically runs 6 to 10 weeks once the application is complete and any Village conditions are satisfied.
Structural drawings are required at submission. Any addition involving new framing or a second story needs engineer-stamped calculations included with the application package.
Final inspection closes out the project. Each trade signs off as its portion of the work completes, and a final county inspection precedes the certificate of occupancy for the new space.
What Chevy Chase Buyers Look For in a Well-Executed Addition
A seamless match to the original home reads as quality. Buyers touring Chevy Chase listings can usually spot an addition that wasn’t planned with the existing architecture in mind. It works against the home’s perceived value.
Purposeful rooms outperform vague bonus space. A primary suite with a genuinely well-designed bathroom beats an undefined flex room. Buyers in this market compare homes on specific, well-executed spaces rather than raw square footage.
Respecting the neighborhood’s character pays off at resale. Chevy Chase buyers consistently favor additions that feel like they belong, over additions that read as an obvious later add-on.
How to Choose a Home Addition Contractor in Chevy Chase
Confirm Maryland licensing first. Verify MHIC credentials at dllr.state.md.us before any design conversation begins, and confirm liability coverage above Maryland’s $500,000 statutory minimum.
Ask specifically about Village approval experience. A contractor who has submitted addition plans to Chevy Chase Village before can walk you through the process in detail. One who hasn’t may not even know the step exists.
Review a local portfolio of comparable additions. Ask for photos and addresses of completed additions in Chevy Chase from the past two years, then call the homeowners directly.
Insist on engineer-stamped drawings before permitting. Any addition involving structural changes should have these prepared during design, well ahead of submission.
H&C Construction: Home Additions in Chevy Chase, Maryland
H&C Construction Design Build serves Chevy Chase homeowners with home addition projects across Chevy Chase Village, Section 3, Section 5, and the surrounding Montgomery County area.
As Licensed Contractors in Maryland, we hold active MHIC credentials and general liability insurance above statutory minimums. We manage Village approval and Montgomery County DPS permits together, so the sequence is handled correctly from the start.
Some Chevy Chase additions grow into a larger project. If yours also touches the kitchen or a bathroom, our Kitchen Remodeling and Bathroom Remodeling teams coordinate directly with the addition crew. For homeowners planning a broader scope, our Full Home Remodeling and Basement Remodeling services cover the rest of the house.
Browse completed addition and whole-home renovation projects in our Our Remodeling Projects portfolio.
Ready to Plan Your Chevy Chase Home Addition?
Whether you are planning a primary suite over the garage, a full second story, or a single-story family room expansion, our design-build team gives you an honest cost range and the correct approval sequence before you commit to anything.
Explore our Home Additions service and request a consultation to start your Chevy Chase project today.

