Threshold US · Maryland land

New-build home prices in 21057

Baltimore County, MD · 194 recorded sales 2021-2026 · MD SDAT

Recorded home sales in ZIP 21057 (Baltimore County) run a median of $264 per square foot, the ground pricing a new-build has to work against. The middle half of sales sit between $221 and $307/sq ft.

$264
median $/sq ft (2021-2026)
$630,000
median sale price
2,482
median home size (sq ft)
194
qualified sales analyzed

What new homes sell for in 21057

At the local median of $264/sq ft, a new home would price roughly:

1,500 sq ft$396,000
2,000 sq ft$528,000
2,500 sq ft$660,000
3,000 sq ft$792,000

A gross sale price. The land bid it supports comes after build cost, contingency, fees, finance and profit — the residual the Threshold tool solves.

By home type

Home typeSalesMedian $/sq ftMedian sizeMedian price
Single-family194$2642,482 sf$630,000

Recent sales in 21057

TypeSq ftSale price$/sq ftYr builtSold
Single-family3,226$930,000$28820004/2026
Single-family2,968$840,000$28319704/2026
Single-family3,092$810,000$26219754/2026
Single-family2,770$805,707$29120151/2026
Single-family2,508$780,000$31119731/2026
Single-family3,209$775,000$24219763/2026
Single-family2,206$740,000$33519713/2026
Single-family1,845$590,000$32019681/2026
Single-family1,840$417,500$22719522/2026
Single-family1,568$346,000$22119622/2026
Single-family5,341$1,610,000$30120145/2025
Single-family3,690$1,355,000$36719829/2025
Single-family3,262$1,150,000$35319997/2025
Single-family3,217$1,108,000$34420063/2025
Single-family4,278$1,040,000$24320256/2025

Appraising a site in 21057?

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Questions about 21057 home prices

What is the price per square foot in 21057?
Recent recorded home sales in ZIP 21057 (Baltimore County, MD) run a median of $264 per square foot, with the middle half between $221 and $307, from 194 qualified sales in 2021-2026.
What does a home sell for in 21057?
The typical recorded sale in 21057 is a 2,482 sq ft home at $630,000. A new 2,482 sq ft home at the local $264/sq ft would price around $655,248.
Where does this 21057 data come from?
Maryland Department of Planning parcel data derived from the State Department of Assessments and Taxation (SDAT) property records. Qualified residential sales from 2021. Estimates for site screening, not an appraisal.

All of Baltimore County →
Nearby ZIPs: 21082 · 21051 · 21234 · 21286 · 21236 · 21013 · 21128 · 21087
Maryland land hub

Method: improved arms-length residential sales with recorded structure square footage (2021+) from Maryland Department of Planning parcel data derived from the State Department of Assessments and Taxation (SDAT) property records, assigned to nearest ZIP centroid. $/sq ft is sale price over heated living area. Estimates for site screening, not a USPAP appraisal. Updated July 2026.