Luxury home sales in Gaithersburg
Luxury home sales
Selling a luxury property in Gaithersburg means competing in a small, specific field. Census estimates for 2020-2024 put the median owner-home value in ZIP 20878 at $715,800, and 2,662 owner homes there, 15.9% of them, exceed $1,000,000. Inside city limits the group is smaller. Only 496 principal residences billed city tax topped $1,000,000 in assessed value for levy year 2025.
Across the whole city the Census counts 1,072 owner homes worth seven figures, just 8.2%. That’s a thin layer of the market. Buyers at that level weigh a Gaithersburg house against choices in Potomac, North Potomac and Rockville, so the pitch has to explain why this address. Shoppers in this tier often tour from farther away on weekends, so previews get grouped. Lot size, newer construction and a short drive to Interstate 270 usually make the case.
Owners who’ve already left Maryland meet a withholding rule at closing. The state withholds 8.75 percent of the sale price when the seller is a nonresident individual. Sellers at $1.5 million and up also lose access to the tentative refund. A tax adviser handles the later filing. We show the withheld amount in your first estimate, so the next purchase isn’t planned around money the state is still holding.
Our plan for this tier is narrow by design: a list of agents and buyers active above your price, private previews and a printed history of improvements for the appraiser. Luxury home sales covers the broader service. Timing for the launch lives on when to list a home in Gaithersburg, and owners wanting no exposure read off-market home sale in Gaithersburg. Estate pricing works differently in Selling a luxury property in Potomac. A pricing review with our Gaithersburg real estate agent can happen whenever you’re ready.
Gaithersburg
Gaithersburg, block by block.
Neighborhood-level guidance comes standard: pricing, timing, and positioning tuned to the block, not just the ZIP code.
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Sources
Last reviewed October 3, 2026 by Levi Loveless, licensed in Maryland and Virginia. Every rule, rate and figure on this page links to the source we checked.
- U.S. Census Bureau, ACS 2020-2024 5-year, Table DP04, ZCTA 20878, 2020-2024
- Montgomery County Department of Finance, Real Property Taxes 2025 dataset (parcels billed City of Gaithersburg tax), levy year 2025
- U.S. Census Bureau, ACS 2020-2024 5-year, Table DP04, Gaithersburg city, 2020-2024
- Comptroller of Maryland Tax Alert, July 1, 2025
Where to go next.
Whichever side of the move you are on, start here.