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420 Williamson RoadGladwyne, PA 19035

For Sale

$3,950,000

Smart Buyer Rebate $39,500

Elegant gated estate in sought-after Gladwyne, masterfully designed by renowned architects Peter Batchler alongside architectural designer, Christina Waters, offering exceptional craftsmanship, scale, and versatility. A grand two-story marble foyer with a sweeping curved staircase makes a striking first impression and opens to the spectacular great room, highlighted by soaring ceilings, a Heat & Glo gas fireplace, and custom built-ins with a lighted display and media center. This impressive space flows seamlessly into the chef’s kitchen, featuring rich custom cabinetry, an oversized center island with seating, and top-of-the-line stainless steel appliances, including a Thermador cooktop, a new refrigerator, double dishwashers, wall ovens, and a Sub-Zero wine and beverage refrigerator. A sun-drenched breakfast area with built-in bench seating overlooks the serene, private grounds. The stunning sunroom serves as a true indoor-outdoor retreat, complete with multiple seating areas, a dining space, hurricane-rated windows, and a full indoor grilling kitchen perfect for year-round entertaining, all with picturesque views of the lush backyard. The formal dining room, adorned with elegant crown molding, is ideal for hosting and is complemented by a well-appointed butler’s pantry. Additional main level highlights include a richly detailed home office with custom built-ins, two powder rooms, multiple pantry closets, and a spacious, well-equipped laundry room. The luxurious first-floor primary suite offers a private sanctuary, complete with a Heat & Glo gas fireplace, custom built-ins, and an expansive, professionally outfitted walk-in closet. The spa-inspired primary bath features dual vanities, separate water closets, a soaking tub, and an oversized glass-enclosed shower. The second level offers two generously sized bedroom suites with ensuite baths, along with two additional bedrooms connected by a Jack-and-Jill bathroom. A standout feature is the fully self-contained one-bedroom apartment with both private exterior access and interior connectivity, ideal for an au pair, in-law suite, or extended guests, complete with a living area, full kitchen, separate bedroom, full bath, and its own laundry. The finished walkout lower level provides exceptional additional living space, including a large media and recreation room, fitness area, full bathroom, a private office with exterior access, and abundant storage. Additional features include an elevator servicing all levels, an oversized four-car garage, three HVAC systems with six zones, and beautifully manicured, private grounds. Ideally located just minutes from the Village of Gladwyne with convenient access to Center City Philadelphia, major roadways, premier shopping and dining, and situated within the highly acclaimed Lower Merion School District, this extraordinary estate offers refined Main Line living at its finest.

Listed by Damon C. Michels

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License #AB067731

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KW Main Line - Narberth

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6107319300

Last updated April 27, 2026

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Source: BrightMLS #PAMC2177178

Listing Facts

  • TypeSingle-family
  • NeighborhoodBryn Mawr
  • Bedrooms6
  • Bathrooms8
  • Days on Prevu3
  • Taxes$37,998/year
  • Size8,725 sqft
  • Price per sqft$453

Amenities

  • Dishwasher
  • Washer/Dryer
  • Parking

Location

Mortgage Calculator

Listing History

04/27/2026
Listed by KW Main Line - Narberth
$3,950,000

Property Details for 420 Williamson Road

Exterior

Construction

  • New Construction: No
  • Property Condition: Excellent, Very Good
  • Roof: Shingle, Pitched
  • Window Features: Energy Efficient, Double Pane, Screens
  • Year Built: 2009
  • Architectural Style: Colonial
  • Construction Materials: Stone, Stucco
  • Exterior Features: Exterior Lighting, Flood Lights, Lawn Sprinkler, Street Lights

Features

  • Fencing: Aluminum
  • Other Structures: Above Grade, Below Grade
  • Patio And Porch Features: Patio(s), Enclosed
  • Waterfront: No

Measurements

  • Lot Dimensions Source: Assessor
  • Lot Features: Front Yard, Side Yard(s), Rear Yard, Landscaping
  • Lot Size Acres: 0.96
  • Lot Size Dimensions: 204
  • Lot Size Source: Assessor
  • Lot Size Square Feet: 41,986
  • Lot Size Units: Square Feet

Financial

Taxes

  • Tax Annual Amount: $37,998.00
  • Tax Year: 2025

Interior

Features

  • Appliances: Built-In Microwave, Built-In Range, Dishwasher, Disposal, Energy Efficient Appliances, Extra Refrigerator/Freezer, Icemaker, Indoor Grill, Oven/Range - Electric, Oven/Range - Gas, Oven - Wall, Range Hood, Refrigerator, Washer, Dryer, Stainless Steel Appliances, Water Heater, Water Heater - Tankless
  • Fireplace Features: Gas/Propane
  • Fireplace: Yes
  • Fireplaces Total: 2
  • Flooring: Hardwood, Partially Carpeted
  • Interior Features: 2nd Kitchen, Additional Stairway, Attic, Bathroom - Soaking Tub, Bathroom - Tub Shower, Bathroom - Walk-In Shower, Breakfast Area, Built-Ins, Butlers Pantry, Carpet, Cedar Closet(s), Ceiling Fan(s), Efficiency, Elevator, Entry Level Bedroom, Family Room Off Kitchen, Floor Plan - Traditional, Formal/Separate Dining Room, Kitchen - Eat-In, Kitchen - Gourmet, Kitchen - Island, Pantry, Primary Bath(s), Recessed Lighting, Upgraded Countertops, Walk-in Closet(s), Wine Storage, Wood Floors, Crown Moldings, Curved Staircase, Dining Area, Spiral Staircase, Wainscotting, Window Treatments

Measurements

  • Living Area: 8,725
  • Living Area Source: Estimated

Rooms

  • Basement: Daylight, Partial, Fully Finished, Outside Entrance
  • Has Basement: Yes
  • Bathrooms Full: 6
  • Bathrooms Half: 2
  • Bathrooms Total Integer: 8
  • Bedrooms Total: 6
  • Main Level Bedrooms: 1

Other

Features

  • Accessibility Features: Elevator

General

  • Senior Community: No

Location

  • Subdivision Name: GLADWYNE
  • Tax Lot: 054

Parking

Parking

  • Garage Spaces: 4
  • Garage: Yes
  • Parking Features: Paved Driveway, Private

Schools

Elementary School

  • Elementary School: GLADWYNE

High School

  • High School: HARRITON SENIOR

Middle or Junior School

  • Middle Or Junior School: BLACK ROCK

Utilities

Equipment

  • Cooling: Central A/C
  • Electric: 200+ Amp Service, Generator
  • Heating: Central
  • Has Heating: Yes
  • Sewer: Public Sewer
  • Utilities: Cable TV
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 6 bedrooms and 8 bathrooms in this single-family home at 420 Williamson Road.

What schools are nearby to 420 Williamson Road?

Nearby schools include the GLADWYNE Elementary School, BLACK ROCK Middle School, and HARRITON SENIOR High School.

Does this single-family home have parking?

Yes, there are 4 parking spaces available for 420 Williamson Road.

What are the annual taxes for 420 Williamson Road?

Annual taxes for this single-family home are estimated at $37,998.

How does 420 Williamson Road compare to other single-family homes in Bryn Mawr?

This single-family home is listed 181% above the average price for single-family homes in Bryn Mawr and has been on the market for 26 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 8,725 sqft.

420 Williamson Road is a 6-bedroom, 8-bath single-family home for sale in GLADWYNE PA 19035. On Prevu for 3 days at $3,950,000. This home features 8,725 square feet of living space, located in Bryn Mawr. The median listing price for single-family homes in this area is $799,000. Nearby schools include GLADWYNE Elementary School, BLACK ROCK Middle School, and HARRITON SENIOR High School. Property amenities include dishwasher, parking, and washer. Browse more single-family home listings in Pennsylvania.

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Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.