$997,000
121 Inverness Dr #, Blue Bell, PA 19422
Listed by Keller Williams Real Estate-Blue Bell
Glass. Steel. Stone. Modernism. A rare opportunity to own an important work of Mid-Century Modern architecture! Designed in 1963 by architect Thomas Mangan, a disciple of legendary modernist Marcel Breuer, this extraordinary glass, steel & stone residence is situated on .70 acres in the sought-after North Hills section of Springfield Township. An exceptional example of mid-century “glass box” architecture, the home has been recognized for its architectural significance, featured in the Philadelphia Inquirer, Modern magazine, architectural publications & home tours, and received preservation recognition from the Preservation Alliance of Greater Philadelphia. Mangan’s design beautifully dissolves the boundaries between architecture & landscape. Walls of floor-to-ceiling glass open the living spaces & all 3 bedrooms to the outdoors, while clerestory windows, soaring ceilings & the home’s thoughtful orientation fill the interior with natural light while maintaining remarkable privacy. Stone, steel, glass & wood come together throughout the home, anchored by 2 massive stone wood-burning fireplaces and the original sculptural zig-zag iron staircase railing. The open living & dining areas embody the simplicity and transparency of classic modernism, with the living room centered around a dramatic stone wood-burning fireplace. The modern kitchen features Carrara marble countertops, custom-crafted stainless-steel cabinetry & modern appliances. The warm library/family room is surrounded by built-in bookshelves and centered around a second dramatic stone wood-burning fireplace. The 3-bedroom, 2.5-bath interior continues the home’s connection to nature. The primary suite features an expansive wall of closets & private bath, while the light-filled hall bath is illuminated by an oversized circular skylight and features a dramatic step-down steam shower enclosed in seamless glass. Additional features include a cedar closet, generous storage, modern HVAC, hot water heater, electrical systems and more. The entire interior & exterior were just professionally painted and the original hardwood floors were just professionally refinished. The spectacular grounds are as thoughtfully designed as the home itself. One of the property’s most memorable architectural elements is a dramatic waterfall cascading across a massive panel of weathered Cor-Ten steel into a reflecting pool below, creating a constantly changing backdrop of water, light & reflection. Professionally landscaped grounds with landscape lighting, multiple Bluestone patios & expansive lawn areas surround the home, offering plenty of room for entertaining, gardening, children, pets, your next special occasion, holiday, birthday or BBQ. A custom Red Cedar horizontal modern slatted privacy fence surrounds the entire property with electronic driveway entry gates, creating a fully fenced & gated setting ideal for children & pets. A large circular driveway & carport provide exceptional off-street parking for up to 10 cars. Set well back from the road, the home’s dramatic architecture, mature landscaping & gated approach create stunning curb appeal and an unexpected sense of seclusion. Located in the A-rated Springfield Township School District, just minutes from Chestnut Hill with easy access to Center City Philadelphia, Route 309 & the PA Turnpike. Walk to the North Hills SEPTA station & North Hills Country Club. More than 60 years after it was built, Thomas Mangan’s 1963 residence remains a striking expression of Mid-Century Modern architecture: glass, stone, steel, openness, natural light and an intimate relationship between architecture & landscape. A rare opportunity to become the next steward of an exceptional Philadelphia-area modernist home. All showings begin at the Grand Opening Public Open House this Saturday, September 19, from 12 to 2 pm EST. This masterpiece work of art has only been offered for sale a few times since being built in 1963. Don't sleep on this home!
How the bedrooms and baths are distributed across the floors, as reported by the listing agent.
| Date | Event | Price |
|---|---|---|
| Sep 19, 2026 | Listed for sale | $975,000 |
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
$935,000
Automated estimate, not an appraisal. Sale records through July 2026.
Based on 10 comparable sales nearby, the Montgomery County assessment ratio, and this home's own August 2020 sale grown with the local market, weighted toward the current asking price.
| Address | Closed | Sale price | Bd/Ba | Sqft | Adjusted value |
|---|---|---|---|---|---|
| 505 STATION AVE, GLENSIDE, PA 19038 | April 2026 | $676,000 | 3/2 | 2,288 | $777,180 |
| 8331 ELLISTON DR, WYNDMOOR, PA 19038 | April 2026 | $800,000 | 4/2 | 2,576 | $792,914 |
| 708 FALCON DR, GLENSIDE, PA 19038 | July 2025 | $525,000 | 4/2 | 2,550 | $544,989 |
| 7921 EASTERN AVE, WYNDMOOR, PA 19038 | July 2026 | $1,200,000 | 4/2 | 2,640 | $1,147,942 |
| 442 ORELAND MILL RD, ORELAND, PA 19075 | April 2026 | $674,000 | 4/2 | 2,470 | $788,753 |
| 105 PAPER MILL RD #, ORELAND, PA 19075 | July 2026 | $731,000 | 4/2 | 2,465 | $785,260 |
| Date | Event | Price |
|---|---|---|
| August 2020 | Sold | $675,000 |
From closed MLS and county deed records. Earlier transactions may exist.
Estimated at current rates
$10,329 / year
≈ $861 per month
MLS shows (2026)
$10,613
-2.7% at current rates
School tax
SPRINGFIELD TOWNSHIP · 40.66 mills (2025-26)
$8,136
County tax
Montgomery County · 5.95 mills (2026)
$1,191
Municipal tax
As recorded for 2026, varies by municipality
$1,002
Recomputed from the county assessment ($200,110, 1996 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 Montgomery County before relying on it. Learn more: PA property tax calculator · Common Level Ratio by county.
Loan term
Estimated monthly payment
$6,039/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
Springfield Township
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
Montgomery County crime & safety numbers →
County figures from FBI and Pennsylvania source data.
Property taxes
Montgomery 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: September 20, 2026 at 8:08 AM EDT
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