
$659,900
30 Forge Mountain, Valley Forge, PA 19481
Listed by Keller Williams Real Estate-Montgomeryville
Welcome to an exceptional opportunity to own in the heart of Berwyn, Pennsylvania—one of the Main Line’s most sought-after and enduring communities. Perfectly positioned on a quiet, tree-lined road, 31 Old State Rd offers the ideal blend of privacy, convenience, and timeless suburban elegance. This residence is surrounded by beautifully maintained homes and mature landscaping, creating a refined setting that appeals to today’s discerning buyer. Living here means enjoying: Easy access to major roadways including I-76, Route 202, and Lancaster Avenue Seamless commuting to Center City Philadelphia Proximity to upscale dining, boutique shopping, and country clubs Nearby parks, walking trails, and open green space Located within the highly acclaimed Tredyffrin-Easttown School District, consistently ranked among the top districts in Pennsylvania, this home offers not just a place to live—but a long-term investment in education and property value. This property presents a rare opportunity to secure a home in a location where demand remains strong and inventory is limited. Whether you envision customizing your dream home or investing in a premier Main Line address, the potential here is undeniable. 31 Old State Rd is more than a home—it’s an entry into a lifestyle defined by convenience, prestige, and enduring value.
| Date | Event | Price |
|---|---|---|
| May 8, 2026 | Listed for sale | $650,000 |
Price changes are tracked from when NookLocal first indexed this listing; earlier history may not appear. Tax & assessment details are in the section below.
Estimated value
$628,000
Automated estimate, not an appraisal. Sale records through July 2026.
Based on 10 comparable sales nearby, the Chester County assessment ratio, weighted toward the current asking price.
| Address | Closed | Sale price | Bd/Ba | Sqft | Adjusted value |
|---|---|---|---|---|---|
| 128 HOMESTEAD RD, WAYNE, PA 19087 | April 2026 | $725,000 | 3/1 | 1,314 | $915,151 |
| 317 GREENE RD, BERWYN, PA 19312 | June 2025 | $747,500 | 3/1 | 1,308 | $850,017 |
| 1019 HOWELLVILLE RD, BERWYN, PA 19312 | February 2025 | $450,000 | 3/2 | 1,344 | $504,352 |
| 966 UPPER GULPH RD, WAYNE, PA 19087 | March 2026 | $385,000 | 4/1 | 1,298 | $517,044 |
| 1019 HOWELLVILLE RD, BERWYN, PA 19312 | June 2025 | $545,000 | 3/3 | 1,344 | $534,557 |
| 103 ARLINGTON RD, PAOLI, PA 19301 | April 2025 | $565,000 | 3/1 | 1,388 | $686,809 |
Estimated at current rates
$6,512 / year
≈ $543 per month
MLS shows (2026)
$7,318
-11.0% at current rates
School tax
TREDYFFRIN-EASTTOWN · 29.66 mills (2025-26)
$5,546
County tax
Chester County · 5.16 mills (2025)
$966
Municipal tax
Not reported in the MLS feed
—
Recomputed from the county assessment ($187,020, 1998 base year) × current millage. Portals typically reprint the recorded 2026 bill. Pennsylvania does not reassess on sale. Estimate only. Verify with Chester County before relying on it. Learn more: PA property tax calculator · Common Level Ratio by county.
Loan term
Estimated monthly payment
$3,995/mo
Taxes use NookLocal's estimate at current millage rates, not the stale figure on the MLS. The default rate is the average 30-year rate as of July 2026; insurance is estimated at 0.35% of the price per year. Below 20% down, lenders usually add mortgage insurance, which this estimate doesn't include. Estimate only; verify before relying on it.
School district
Tredyffrin-Easttown
2025 PA state assessments (PSSA / Keystone) and graduation data. The index measures student outcomes, not school effectiveness, and is not adjusted for demographics. Districts serve all residents; verify enrollment boundaries with the district.
Safety data
Chester County crime & safety numbers →
FBI and Pennsylvania source data, presented without spin.
Property taxes
Chester County taxes, explained →
Millage, the Common Level Ratio, and what changes after you buy.
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Information Deemed Reliable But Not Guaranteed
The data relating to real estate for sale on this website appears in part through the BRIGHT Internet Data Exchange program, a voluntary cooperative exchange of property listing data between licensed real estate brokerage firms in which United Real Estate Strive 212 participates, and is provided by BRIGHT through a licensing agreement.
IDX listings are displayed pursuant to broker of record United Real Estate Strive 212, Frank Ramos, Broker/Owner, PA Broker License RM424345, 1220 Broadcasting Rd, Suite 201, Wyomissing, PA 19610, (610) 372-0212.
The information provided by this website is for the personal, non-commercial use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
Some properties which appear for sale on this website may no longer be available because they are under contract, have Closed or are no longer being offered for sale.
Data last updated: July 8, 2026 at 2:30 PM EDT
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