Cross the county line at Clarksburg and the FHA loan ceiling stays exactly where it was: $1,249,125, the same number that applies in Bethesda and the same number that applies in Urbana. Most buyers assume that means the two counties play by the same rules. They don't. The ceiling is identical. What it buys, and what it costs to get there, are not even close.
That gap is the actual story for anyone weighing a home search on the Montgomery County side of Clarksburg against pushing a few more miles up I-270 into Frederick County. It shows up in three places most buyers never check until they're already under contract: what a fixed loan limit actually covers in each county, what the county itself charges you to close, and what's changing on the ground right now that neither county's tax table will tell you about.
One Ceiling, Two Very Different Rooms
Frederick County homes sold for a median of $514,000 in the three months ending June 2026, up 4.4 percent from the same period a year earlier, with a typical 36 days on market. Montgomery County homes sold for a median of $695,000 over the three months ending May 2026, up 6.6 percent year over year, moving faster at 32 days. That's roughly a $180,000 gap between the two counties TGP Homes covers, and it's the number every portal already shows you.
Here's the part the portals don't connect: both counties fall under the same 2026 FHA high-cost loan limit of $1,249,125. In Frederick, where the median sits at $514,000, that ceiling covers nearly the entire market, including plenty of homes most buyers would call upper-tier. In parts of Montgomery County, it barely gets you in the door. Recent 12-month sales data puts Chevy Chase and the 20815 zip code at a median around $1,376,000, Potomac near $1,287,000, and the 20816 zip code close behind at $1,369,000. A loan limit built to stretch is only generous relative to what you're stretching toward.
That asymmetry matters most for buyers using FHA or high-balance conventional financing rather than paying cash. The same ceiling that comfortably covers a move-up purchase in Urbana or a lakeside property near Lake Linganore sits right at the entry point for a standard single-family home in Bethesda or Potomac. If your financing plan assumes the loan limit means the same thing on both sides of the county line, it doesn't.
The Line on the Map Has a Price Tag
Even before financing enters the picture, the county line itself changes what you owe at settlement. Maryland charges a flat 0.5 percent state transfer tax everywhere, but county-level transfer and recordation taxes vary sharply, and Frederick and Montgomery sit on opposite ends of that range.
Frederick County charges no county transfer tax at all. Sellers and buyers there split only the 0.5 percent state transfer tax and a $7.00-per-$500 recordation tax, which works out to 1.4 percent of the sale price, according to the Frederick County Clerk of the Circuit Court's recording fee schedule. Montgomery County stacks a county transfer tax of 1.0 percent (rising to 1.5 percent on sales at or above $1 million) on top of a $5.05-per-$500 recordation tax, or 1.01 percent, among the highest combined rates in the state.
Run both sets of rates against the same hypothetical $700,000 sale, a price close to either county's current median, and the gap becomes concrete:
| Frederick County | Montgomery County | |
|---|---|---|
| State transfer tax (0.5%) | $3,500 | $3,500 |
| County transfer tax | $0 | $7,000 |
| Recordation tax | $9,800 (1.4%) | $7,070 (1.01%) |
| Total transfer + recordation | $13,300 | $17,570 |
That's a $4,270 difference on an identical sale price, before either side negotiates who pays what. Split by the usual 50/50 custom, that's roughly $2,135 more per side simply for closing in Montgomery instead of Frederick. It's not agent commission, it's not a lender fee, and it's not something either county's own tax office frames as a comparison. It's a structural cost of which side of the Clarksburg line the deed gets recorded on.
What Changed North of Germantown While Everyone Was Watching the Outlets
The tax gap has been true for years. What's new is what's happening to the Montgomery County side of that trade right now, and it's recent enough that most buyer guides haven't caught up.
In March 2026, the Montgomery County Council unanimously approved the Clarksburg Gateway Sector Plan, a long-term vision covering roughly 969 acres near I-270 and Clarksburg Road that calls for a new town center, expanded housing, and a more connected transportation network. Buried inside that plan is the fate of the long-vacant Communications Satellite Corp. campus, a 500,000-square-foot building designed by César Pelli that has sat empty for two decades. The county declined to designate it a historic site, clearing the way for likely demolition. Bob Elliott, whose firm River Falls Investments has owned the site for a decade, put the holdup plainly to a reporter touring the property with county planners: "We get asked a lot why nothing has happened. Honestly, it's the big building in the middle."
At the same time, commuting math on this corridor just shifted. Clarksburg still has no MARC stop of its own, so residents drive to Gaithersburg to catch a train. As of September 2026, that train goes somewhere new: the Maryland Transit Administration introduced direct MARC service linking Germantown, Metropolitan Grove, Gaithersburg, Rockville, and other stops straight through to Baltimore, a route that didn't exist a year ago.
Neither of these is a finished story. The COMSAT site hasn't broken ground and the new MARC run is one train each direction. But both point the same way: the case for staying on the Montgomery County side of the line, higher taxes and all, is getting stronger in ways a tax table can't capture.
Standing at the County Line
None of this tells a buyer which county wins. It tells them the comparison is more layered than a median price chart suggests. A loan limit that looks identical on paper stretches much further in Frederick, where it comfortably covers most of the market, than it does in upper Montgomery County, where it barely reaches the entry point in Chevy Chase or Potomac. A closing table that looks like a formality costs meaningfully more once you cross into Montgomery. And a corridor that looked stagnant for twenty years, the COMSAT site included, is now moving, with a sector plan on the books and a new direct rail connection to Baltimore that changes the commute equation from the Montgomery side rather than the Frederick side.
For a buyer standing at that line, the honest math involves running both counties against your actual budget and your actual commute, not the county each one happens to be in. That's where a team working both sides of the Frederick and Montgomery County market earns its keep.
A few questions worth asking before you pick a side:
Does the loan limit gap apply to conventional loans too, or just FHA? The $1,249,125 figure is the 2026 high-cost county ceiling that applies to FHA-backed and high-balance conventional loans. Standard conventional limits are lower nationwide, so the practical effect is strongest for buyers relying on FHA or high-balance financing rather than jumbo or cash purchases.
Is the transfer and recordation tax split always 50/50? By custom, yes, though the actual split is negotiable and gets written into the contract. First-time Maryland buyers are also exempt from the state's 0.5 percent transfer tax on the first $500,000 of price, which can offset part of the gap on either side of the county line.
Will the Clarksburg Gateway Sector Plan move home values right away? Sector plans set a long-term framework rather than a construction schedule. The COMSAT site redevelopment and the town center buildout will take years to materialize. What's changed already is the direct MARC connection to Baltimore, which the state introduced this month.
If you're weighing a purchase somewhere along this corridor and want the real numbers run against your budget rather than a county-wide average, Troyce Gatewood & Partners works both sides of the Frederick and Montgomery County line every day. Request a free home valuation and guaranteed cash offer, and we'll walk you through what your specific price point actually buys on each side before you write an offer.