$649,000
557 Summercroft Dr, Exton, PA 19341
Listed by BHHS Fox & Roach-West Chester
One of a kind!!! Rare opportunity to own a Buckminster Fuller-inspired geodesic dome home, privately situated on a lovely 2.5 acre parcel, with three stall barn and fenced pasture, framed by mature evergreen and deciduous trees. This unique three bedroom, two full bath property is optimally located within close proximity to vibrant downtown Phoenixville, Kimberton Village, the Kimberton Waldorf School and award winning OJR schools, and is less than 30 minutes to Paoli's regional and AmTrak train lines to Philadelphia, NYC and DC. The geodesic dome design, conceived in Germany but patented in the US in 1954 by Buckminster Fuller, employs an "omnitriangulated" network that distributes structural stress more efficiently than the standard rectangular dwelling. The resulting spherical shape enhances energy efficiency by creating an even, natural airflow for both hot or cool air to circulate...Originally constructed in 1979 and then expanded in 1992, the home features compelling mid-century architectural details, most notably the series of pentagonal skylights within the dome, and a spiral staircase that accesses a lofted area with incredible skylight views, as well as views down to the circular main level floor plan...Enter through the main door into the foyer, which is flanked by two coat closets, and then leads past the spiral staircase into the living room, illuminated not only by the domed skylights but also by a large picture window. The living room seamlessly flows to the dining area, with built-in cherry cabinetry and sliders to the patio, yard and pasture beyond. The adjacent, updated kitchen, designed and installed by Dilworth's Custom Design, features Cambria quartz counters, cherry cabinets, stainless appliances and recessed lighting. From the both the kitchen or entry foyer, take the main hallway to the first full bath, with walk-in shower, detailed tile floor and vanity with granite counter top, then further down the hallway find a well-sized main level bedroom. Rounding out the main level is a combination mudroom / laundry room, with coat closet, egress to the rear exterior of the home as well as convenient egress to the attached, oversized two car garage. The whole main level has absolutely everything you'll ever need for one level living, now or in the future....The home's floorplan also includes two upper level areas - the first, within the dome, is a lofted space open to the dome and floor plan below, along with a fully enclosed 14' x 12 ' bedroom with skylight. The second upper level is accessed via stairs from the laundry / mudroom, atop which is an expansive and private primary suite, with attached full bath, large walk-in closet and sitting area with sliders to a dedicated balcony within the treetops, providing beautiful views of the yard and pasture beyond...Outside, find a tidy three stall barn with water and electric, as well as a fully fenced pasture, and a large shed for convenient additional storage. The rear patio is fully wired and waiting for your hot tub - no better place to enjoy moon and stars and winter snow falls !!! ....This singular property, well loved and maintained by the current owners over their 38-year stewardship, now beckons its next lucky owner - come see all this special property, in an exceptional location, has to offer!!!!
How the bedrooms and baths are distributed across the floors, as reported by the listing agent.
| Date | Event | Price |
|---|---|---|
| Oct 3, 2026 | Listed for sale | $659,000 |
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
$634,000
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 |
|---|---|---|---|---|---|
| 6 FREED AVE, SPRING CITY, PA 19475 | August 2026 | $370,000 | 3/1 | 2,142 | $439,207 |
| 1232 W BRIDGE ST, SPRING CITY, PA 19475 | August 2025 | $560,000 | 3/2 | 2,100 | $611,487 |
| 9 MARCEL AVE, SPRING CITY, PA 19475 | August 2025 | $450,000 | 3/2 | 1,957 | $549,129 |
| 451 SAYLORS MILL RD, SPRING CITY, PA 19475 | August 2026 | $440,000 | 3/2 | 2,060 | $493,803 |
| 304 HAVERFIELD, SPRING CITY, PA 19475 | August 2026 | $586,000 | 3/2 | 1,843 | $715,092 |
| 601 NEW ST, SPRING CITY, PA 19475 | September 2026 | $356,000 | 2/1 | 2,075 | $435,592 |
Estimated at current rates
$8,736 / year
≈ $728 per month
MLS shows (2026)
$8,955
-2.4% at current rates
School tax
OWEN J ROBERTS · 36.36 mills (2025-26)
$7,299
County tax
Chester County · 5.16 mills (2026)
$1,037
Municipal tax
As recorded for 2026, varies by municipality
$401
Recomputed from the county assessment ($200,730, 1998 base year) × current millage. School millage is from the latest year certified by the Pennsylvania Department of Education (2025-26); districts adopt the next year's budgets each June, and we update when the state certifies the statewide file in the fall. 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
$4,228/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
Owen J Roberts
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 →
County figures from FBI and Pennsylvania source data.
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: October 6, 2026 at 2:08 PM EDT
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