Rockville 20851

Montgomery County, MD · 3,774 properties · updated 7/5/2026

Should you buy here?buyer-timing lens

52affordability /100

Buyer leverage is seller slight; weigh payment burden and the 3-lens valuation before bidding.

Payment burden
29.3%
stretched
Days on market
27
daily
Price cuts
0.0%
of active
Valuation
+3.9%
vs assessor
Look up an address
63
/100
stable
stable · seller slight · prices easing year-over-year.

Verdict grades housing conditions; buyer-timing, investor cash-flow, supply-tightness and county macro scores answer different questions — each in its own section.

Buyer / sellerbuyer-timing lens

30/ 100SellerBalancedBuyer
Seller's Market
DOM: 35d (falling) · Market Dynamics rolling median · hourly
Score Components
Payment Burden (25%)25
Valuation Gap (25%)25
Supply & Demand (20%)40
Buy vs Rent (15%)50
Cancellation Rate (10%)0
Days on Market (5%)40

Seller-favored market in 20851. Expect to pay at or near list price. Payment burden: 29.3% of median income. Median days on market: 35. Renting is approximately 36% cheaper than buying (price-to-rent ratio: 16.3).

Buyer Caution

Seller's market. Be prepared to pay near list price.

Competitive market similar to 2021-2022 — limited inventory driving prices above fundamentals.
STABLESELLER SLIGHT

Market is holding steady with balanced conditions. Sellers hold a slight edge. Prices down 1.6% YoY.

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Market snapshoteach number, once

Median price
$550,289
▾ 1.6% YoY
Days on market
27
daily · zip_data
Median rent
$2,821
ZORI
Investor score
61/100
cash-flow lens
Active listings
19
90-day

Valuation3 lenses, different anchors

vs assessor
+3.9%
Market vs assessed value — a tax-roll lag, not a deal signal.
Avg assessor$571,600
county CAMA · properties_v
vs income
—
Fair-value model not available for this market.
fair_value_scores · 10-state coverage
vs county comps
+36.8%
County-wide market — the widest, slowest signal.
Montgomery+36.8%
Lotvox comps · mv_valuation_gap
Read together: Above county comps but sustainable on local incomes.
Pricing detail
Price / sqft$300
Price-to-income4.8×

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How 20851 ranks in MD
percentile vs all MD ZIPs
Comparative ranking not available for this ZIP.

Affordability, supply & momentum

57SUPPLY
Tight MarketSupply Tightness

Supply is below normal — sellers are favored but buyers still have options.

Months of Supply4.8 mo
Days on Market27d
Inv vs History+37.2%
Listing Density--
Market dynamics
Price cut %0.0%
Momentumstable
LeverageSELLER SLIGHT
Months of supply4.8
Sales (90d)0
Investment analysis
Median rent$2,821
Price-to-rent16.3
Est. cap rate4.0%
Buy vs rentneutral

Livability

Walk score7
Transit score37
Bike score—

Historical trends

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Montgomery County contextmacro · jobs · debt · migration

ZIP score grades housing; county score adds macro distress (jobs, debt, poverty). They answer different questions.

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Washington DC Metro·Overpriced ZIPs·Investor ZIPs·View on Map·Montgomery County