Features & Amenities

Interior

  • Total Bedrooms

    5

  • Bathrooms

    5

  • Above Grade Finished Area

    3777.0

  • Basement YN

    YES

  • Cooling YN

    YES

  • Cooling

    Central Air, Electric

  • Fireplace YN

    YES

  • Heating YN

    YES

  • Heating

    Electric, Natural Gas, Forced Air, Baseboard, Heat Pump

  • Main Level Bedrooms

    5

  • Pet friendly

    N/A

Exterior

  • Garage

    Yes

  • Garage spaces

    4

  • Construction Materials

    Stucco

  • Parking

    Garage, Driveway, Inside Entrance, Attached

  • Pool

    Yes

  • Pool Features

    None

  • Waterfront YN

    NO

Area & Lot

  • Lot Size(acres)

    2.42

  • Property Type

    Residential

  • Property Sub Type

    Single Family Residence

  • Architectural Style

    Contemporary

Price

  • Sales Price

    $1,800,000

  • Tax Amount

    $15,174

  • Sq. Footage

    5, 556

  • Price/SqFt

    $323

HOA

  • Association

    No

School District

  • Elementary School

    ITHAN

  • Middle School

    RADNOR

  • High School

    RADNOR

Property Features

  • Foundation Details

    Slab

  • Senior Community YN

    NO

  • Sewer

    Public Sewer

  • Tax Lot

    081-001

  • Water Source

    Public

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Location

County

DELAWARE

Elementary School

ITHAN

Middle School

RADNOR

High School

RADNOR

Listing Courtesy of Marion C Dinofa , Compass Pennsylvania, LLC

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Architect Irwin Stein designed this remarkable home for his own family, bringing his distinctive modernist sensibility to one of the most desirable neighborhoods in Radnor Township. Set on 2.65 acres of secluded, wooded land, the property reflects Stein’s architectural philosophy, where clarity of form, livability, and a connection to the natural environment come together with intention and artistry.

This five-bedroom, five-bathroom residence offers a thoughtful interpretation of modern design. Influenced by midcentury ideals and shaped by the evolving architecture of the late twentieth century, the house blends strong geometry with open, livable space. Its low horizontal profile and expansive glass walls give it a presence that feels both grounded and airy. Carefully planned interiors create a sense of ease and flow from one room to the next.

Signature details showcase Stein’s creativity and craftsmanship. A dramatic spiral staircase, crafted in wood, leads to a serene loft space that floats above the main living area. The circular kitchen is both playful and functional, with original details that reflect Stein’s eye for form. The expansive living room anchors the home with bold architectural gestures—a sunken conversation pit with its own fireplace, a custom built-in sofa, soaring ceilings, and a modernist corner hearth that adds visual balance and warmth.

Floor-to-ceiling windows and glass sliders create seamless connections to the outdoors, where mature trees and natural landscaping surround the house in privacy. Step outside to find an oversized rear deck and patio—perfect for entertaining or enjoying a quiet moment in nature. Every element was carefully considered to ensure the home would feel as inspiring today as it did when it was built.

The lower level adds tremendous flexibility with a second full kitchen, two additional bathrooms, an office or studio, abundant storage, and an oversized four-car garage—ideal for multigenerational living, guest quarters, or creative workspaces.

Ideally situated just minutes from the center of Bryn Mawr, the Stein House offers convenient access to restaurants, shopping, Bryn Mawr Hospital, and the Amtrak station, with easy access to regional rail and major routes. It sits within the award-winning Radnor Township School District and is near some of the region’s most prestigious private schools and country clubs.

Rarely does a property of such architectural integrity and provenance come to market—especially one so ideally located and livable. Designed by Irwin Stein at the height of his creative powers, and cherished by the family who inspired it, 390 S Bryn Mawr Avenue is a one-of-a-kind home that invites you to live with intention, surrounded by beauty.

390 S BRYN MAWR AVENUE

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Meticulously maintained and in excellent condition, the home welcomes you through a gracious front hallway showcasing rich hardwood floors that flow throughout the main level. The living room exudes sophistication with crown molding, grasscloth-style wallpaper, and recessed lighting, creating a warm yet refined gathering space. The formal dining room features custom lighting, elegant sconces, detailed moldings, and seamlessly connects to a well-appointed butler’s pantry complete with a wet bar.

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A thoughtfully designed mudroom with built-in cubbies, powder room, coat closet, and access to the oversized two-car garage enhances daily living. A rear staircase with an office nook leads to a versatile guest suite with full bathroom and wetbar—ideal as an in-law suite, au-pair quarters, home office, or gym.

Upstairs from the main hallway, the serene primary suite features a tray ceiling, surround sound, two large walk-in closets with built-ins, and a spa-like bath with dual vanities, soaking tub, and frameless glass shower. Two additional bedrooms each offer ample space, double closets and en-suite bathrooms, each with a shower/tub combination. A convenient hall laundry room with sink and a hall linen closet complete this level.

The finished lower level is carpeted with excellent ceiling height and provides multiple living/entertaining areas, an abundance of natural light, and a half bathroom. Also included on this level is an unfinished area with outstanding storage and well-maintained mechanical systems, including 2 high-efficiency HVAC systems (4 zones total) and a backup generator.

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Set back on 0.88 acres at 266 Beechwood Dr. in Bryn Mawr, this 1889 stone twin, originally the carriage house for the former Wentworth Estate, blends period character with privacy. A new slate roof is in progress, and the carport/loft roof includes solar panels. Distinctive details include a turret, original stonework, and three fireplaces

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Secluded setting surrounded by mature trees, plus a small backyard pond and two rain gardens that receive storm water via underground conduit. Beechwood Drive is a private lane with shared maintenance for paving and snow removal; the township handles trash.

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