$2,250,000
1501 Detweiler Ave, Hellertown, PA 18055
Listed by BHHS Fox & Roach-Bethlehem
For generations, Four Oaks Stables formed the heart of a working farm celebrated for its sweeping, manicured apple orchards — a landscape still vividly remembered by those who grew up in Saucon Valley. Originally comprising the Manor House on Saucon Valley Road and the now‑distinct Stables complex, Four Oaks carries a legacy that began in 1927, when a visionary owner and a renowned architect sketched the first magical drawings of what would become an enduring architectural landmark. What began as stables for a country estate, and then became a practical agricultural center, soon evolved into one of the region’s most admired examples of early‑20th‑century Colonial Revival craftsmanship. John M. Gross, an executive at Bethlehem Steel, conceived the Stables, cottage, pump house, and garages after traveling through England’s great manor houses. Inspired by centuries‑old estates, he returned home determined to create “a stables designed to look like it was 200 years old… but built to last 200 years.” His ambition was not simply to replicate the past, but to reinterpret it with a level of permanence and artistry that would allow the property to endure for generations. To realize this vision, Gross hired celebrated Philadelphia architect R. Brognard Okie — the restoration mind behind the Betsy Ross House and Pennsbury Manor, and the preferred architect of the DuPonts, Behrends, and other prominent Main Line families. The cottage at Four Oaks is featured in published works on Okie’s career as a quintessential example of his Colonial Revival mastery. Ever the bold dreamer, Okie blended Georgian and Federal influences with ease, crafting a design that next year will mark its 100th anniversary. His work at Four Oaks reflects not only historical fidelity but also a willingness to experiment with emerging styles and materials. While Okie showcased his Colonial Revival sensibilities in the Stables’ balanced façade, centered entrance, and Palladian window, he layered in more than symmetry and colonial charm. Inside, he nodded to the rising Art Deco movement: curved wooden arches grace the entrance hall and passage, and the tack room displays striking white‑oak joists that glow with warmth and craftsmanship. The building’s interior remains a stunning interplay of historic styles, executed with extraordinary care and an architect’s delight in detail. Today, the central portion of the Stables offers 3,018 square feet of finished living space. The original stalls and apple‑processing room - still largely as conceived - provide additional space ready for transformation. Above, the full second floor remains unfinished, offering yet another opportunity for expansion and creativity. The structure invites both preservation and reinvention, making it ideal for a buyer who values heritage but imagines a future shaped by thoughtful design. The Stables was designed with pragmatic function and exquisite detail. The original brick floors remain today while the clay floors laid in the foyer of the building have been replaced with Moravian tiles. Horses were meticulously cared for here; later, people would create a home within its walls. Nearly a century after its conception, Four Oaks Stables stands as an invitation — to invest in beauty, to honor craftsmanship, and to shape the next chapter of a truly remarkable property.
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 | $2,250,000 |
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 at current rates
$14,349 / year
≈ $1,196 per month
MLS shows (2026)
$14,459
School tax
SAUCON VALLEY · 55.21 mills (2025-26)
$11,041
County tax
Northampton County · 10.80 mills (2026)
$2,160
Municipal tax
As recorded for 2026, varies by municipality
$1,148
Recomputed from the county assessment ($200,000, 1995 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 Northampton County before relying on it. Learn more: PA property tax calculator · Common Level Ratio by county.
Loan term
Estimated monthly payment
$13,146/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
Saucon Valley
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
Lehigh County crime & safety numbers →
County figures from FBI and Pennsylvania source data.
Property taxes
Lehigh County taxes, explained →
Millage, the Common Level Ratio, and what changes after you buy.
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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.
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Data last updated: October 6, 2026 at 2:07 PM EDT
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