857 BRIARWOOD RD, Newtown Square, PA 19073

• 5 beds |
• 6 baths |
• 6,050 sqft

Property Description

PROPERTY HIGHLIGHTS Main Line location in Radnor Township Radnor School District 2.66-acre private homesite surrounded by mature woodland 5,500± sqft Main House and 550± sqft Pool House Mid-Century Modern residence Rear-facing architectural façade oriented toward the natural landscape Walled private motor court Walls of glass, skylights & soaring ceilings Pool + separate pool house / dwelling Pool house includes bedroom, full bath, living area & kitchen — ideal as an in-law suite, guest house or private retreat A rare architectural offering on Philadelphia's Main Line. Set at the end of a long, private drive in sought-after Greene Countrie, 857 Briarwood Road offers an extraordinary combination of Mid-Century Modern architecture, privacy, and indoor-outdoor living. Originally built in 1966 by local developer Robert Balbirnie, the approximately 6,050-square-foot residence (5,500± sqft Main House and 550± sqft Pool House) was designed as a private compound for sophisticated living and entertaining. Unlike a traditional street-facing home, its architectural façade faces the rear of the property, creating a dramatic and highly private relationship with the surrounding landscape. A striking walled motor court provides a distinctive sense of arrival, while expansive walls of glass, sliding doors, skylights, and soaring ceilings bring natural light and the wooded setting into the home. Generous entertaining spaces and wet bars reflect the home's original design for gatherings and sophisticated living. The property also features a pool and separate pool house, offering exceptional flexibility for guests, extended family, or multi-generational living. With a bedroom, full bathroom, living area, and kitchen, the separate dwelling could serve as an in-law suite, guest house, pool house, or private retreat. The home's distinctive geometric design has long drawn comparisons to the work of I.M. Pei, and according to the property's history, Balbirnie and Pei are believed to have spoken during the home's design. Whether influence or coincidence, the architectural connection adds another fascinating layer to this one-of-a-kind residence. An authentic 1960s architectural statement, a private compound, and a truly distinctive Main Line offering — 857 Briarwood Road is a home unlike any other.

Listing Status:

Active

Date Added:

August 13, 2026

Data Last Updated:

September 24, 2026 at 5:16AM

Listing Office:

Keller Williams Real Estate -Exton : 6103634300

Listing Agent:

Gina McDonald : 2155275890

MLS ID:

PADE2121520

Interior

• General: 2nd KitchenBarBathroom - Soaking TubBathroom - Stall ShowerBathroom - Walk-In ShowerBreakfast AreaBuilt-InsButlers PantryCombination Dining/LivingCombination Kitchen/DiningCombination Kitchen/LivingEntry Level BedroomFloor Plan - OpenKitchen - Eat-InKitchen - GourmetPantrySkylight(s)Wood Floors
• Appliances: Built-In RangeBuilt-In MicrowaveDishwasherDryer - Front LoadingOven - WallOven/Range - GasRefrigeratorStainless Steel AppliancesWasher - Front Loading
• Laundry: Lower Floor
• Flooring: ConcreteHardwoodTile brick
• A/C: Multi UnitsDuctless/Mini-Split
• Heating: Forced AirNatural Gas
• Fireplace: FireplaceFireplaces: 2
• Disability Feature: >84" Garage Door2+ Access Exits32"+ wide Doors36"+ wide HallsRoll-in Shower

Exterior

• General: BBQ GrillStone Retaining WallsAbove GradeBelow Grade
• Style: Mid-Century Modern
• Other Structures: Patio
• Pool: In ground

Construction

• Roofing: Flat
• Windows: Sliding
• General: Brick2Slab

Location

• Originating MLS: BRIGHT_MAIN
• School District: RADNOR TOWNSHIP
• County: DELAWARE-PA

Lot

• Zoning: RESIDENTIAL36-04-02045-14

Utilities

• Water: Public
• Sewer: Public Sewer

Financial

• Source: BRIGHT_MAIN