Garnet Valley School District · Bethel Township, Delaware County, PA
Northbrook
Performance Tier
Above Average
Median Sold
$671,250
Avg. Appreciation
76%
Avg. $ Gain
$295,983
2025 Sales
8
Low Activity
Compared to the Garnet Valley district average, Northbrook is
outperforming by 12%.
Based on closed sales across 4 counties.
About
Northbrook is a planned subdivision in Bethel Township, Delaware County, built by Blenheim Homes circa 2004–2009 on hilly, wooded terrain off Garnet Mine Road. The community consists of 184 townhomes and 15 single-family detached homes — 199 units total — governed by the Northbrook Community Association, whose three-member elected board meets annually and administers exterior-change approval requirements for all structural and landscaping modifications. Students attend Bethel Springs Elementary School, part of the Garnet Valley School District.
Specifications
Location Anchors
Delaware, PA
39.849, -75.486
What Makes This Distinct
Northbrook’s all-time appreciation track record outperforms the Garnet Valley School District index by a documented margin, which is notable for a community that contains a significant majority of attached townhome product — a segment that historically appreciates more slowly than detached singles in suburban Delaware County.
For Buyers & Sellers
If You’re Buying
$671k median price point. solid appreciation track record. competitive market.
If You’re Selling
Strong appreciation – sellers gained $296k on average. solid 75% return on investment. active market (8 day median). median sale price $671k.
School District
Northbrook is served by the Garnet Valley School District. Buyers should verify current school assignments directly with the district.
View Garnet Valley School District Information
Sources Consulted
Closed sales data · northbrookgv.com · livingplaces.com · newspapers.com · garnetvalleyschools.com · scottkompa.com · homes.com · betheltwp.com
Data refreshed: April 25, 2026 (median sold, appreciation, performance tiers, narratives) · Content reviewed: April 25, 2026 (overview, structural insight)
The Cyr Team · neighborhood sales data · 4 counties