420 Williamson Rd

Gladwyne, PA 19035

$3,695,000
Price
6
Beds
8,725 Sq. Ft.
$423 / Sq. Ft.
8,725
Sq. Ft.
$423
per Sq. Ft.
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Description

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...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.
  1. Listed by Damon C. Michels • KW Main Line - Narberth
    P: (610)-731-9300 damon@damonmichels.com

Property Details for 420 Williamson Road

Tax ID Number
40-00-65536-007
Ownership
Fee Simple
Condo Coop Association
No
HOA
No
Structure Type
Detached
Style
Colonial
Levels/Stories
2
Waterfront
No
LISTING UPDATED: 05/04/2026 01:03 PM

Property Details for 420 Williamson Road

StatusActive
MLS #PAMC2177178
Days on Market8
Taxes$37,998 / year
HOA Fees-
Condo/Co-op Fees-
Property TypeSingle Family
MLS TypeResidential / Fee Simple
Year Built2009
Lot Size0.96 AC / 41,986 SF
CountyMontgomery County
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Location

Listing Courtesy of KW Main Line - Narberth
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Building Information for 420 Williamson Road

Stories2Year Built2009Building Size-Lot Size0.96 AC / 41,986 SF

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$21,773 per month

30 year fixed, 6.46% Interest

Principal and Interest

$18,606

Property Taxes

$3,167

HOA Dues

$0

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Property Information for 420 Williamson Road

Location
Location
  • School District Name: LOWER MERION
  • School District County ID: 300200396851
  • SchoolDistrictSource: 3rd Party
  • Elementary School: GLADWYNE (MONTGOMERY PA)
  • ElementarySchoolSource: 3rd Party
  • Middle Or Junior School: BLACK ROCK (MONTGOMERY PA)
  • MiddleSchoolSource: Listing Agent
  • High School: HARRITON SENIOR (MONTGOMERY PA)
  • HighSchoolSource: 3rd Party
  • County: MONTGOMERY
  • MLS Area: Lower Merion Twp (10640)
Waterfront / Water Access
Waterfront / Water Access
  • Water View: No
  • Water Access: No
  • Water Oriented: No
  • Navigable Water: No
  • Tidal Water: No
  • Riparian Rights Y/N: No
Association / Community Info
Association / Community Info
  • Senior Community: No
Taxes and Assessment
Taxes and Assessment
  • Tax Year: 2025
  • Tax Assessed Value: $825,370
  • Year Assessed: 2026
  • County Tax: $4,508
  • Improvement Assessed Value: $0
  • City Town Tax: $3,977
  • Land Assessed Value: $0
  • Clean Green Assessed: No
  • Land Use Code: 1101
  • Zoning: RES
  • Tax Lot: 054
  • School Tax: $29,108
  • Automatically Update Tax Values Y/N: Yes
Rooms
Main
  • # Bedrooms Count Main Level: 1
  • # Bathrooms Count Main Level: 3
  • # Bathrooms Full Main Level: 1
  • # Bathrooms Half Main Level: 2
All Upper Levels
  • # Bedrooms Count All Upper Levels: 5
  • # Bathrooms Count All Upper Levels: 4
  • # Bathrooms Full All Upper Levels: 4
Upper Level 1
  • # Bedrooms Count Upper Level: 5
  • # Bathrooms Count Upper Level: 4
  • # Bathrooms Full Upper Level: 4
All Lower Levels
  • # Bathrooms All Lower Levels: 1
  • # Bathrooms Full All Lower Levels: 1
Lower Level 1
  • # Bathrooms Lower Level: 1
  • # Bathrooms Full Lower Level: 1
Rooms
  • Room List: Dining Room, Primary Bedroom, Bedroom 2, Bedroom 3, Bedroom 4, Bedroom 5, Kitchen, Foyer, Breakfast Room, Sun/Florida Room, Exercise Room, Great Room, Laundry, Office, Recreation Room, Storage Room, Efficiency (Additional), Bathroom 2, Bathroom 3, Primary Bathroom, Full Bath, Half Bath
  • Stories: Lower 1, Main, Upper 1
Rooms Information
Room 1
  • Room Type: Great Room
  • Room Level: Main
  • Room Exists: Yes
Room 2
  • Room Type: Bedroom 2
  • Room Level: Upper 1
  • Room Exists: Yes
Room 3
  • Room Type: Bathroom 2
  • Room Level: Upper 1
  • Room Exists: Yes
Room 4
  • Room Type: Bedroom 3
  • Room Level: Upper 1
  • Room Exists: Yes
Room 5
  • Room Type: Bathroom 3
  • Room Level: Upper 1
  • Room Exists: Yes
Room 6
  • Room Type: Full Bath
  • Room Level: Upper 1
  • Room Exists: Yes
Room 7
  • Room Type: Bedroom 5
  • Room Level: Upper 1
  • Room Exists: Yes
Room 8
  • Room Type: Full Bath
  • Room Level: Upper 1
  • Room Exists: Yes
Room 9
  • Room Type: Half Bath
  • Room Level: Main
  • Room Exists: Yes
Room 10
  • Room Type: Breakfast Room
  • Room Level: Main
  • Room Exists: Yes
Room 11
  • Room Type: Laundry
  • Room Level: Main
  • Room Exists: Yes
Room 12
  • Room Type: Sun/Florida Room
  • Room Level: Main
  • Room Exists: Yes
Room 13
  • Room Type: Kitchen
  • Room Level: Main
  • Room Exists: Yes
Room 14
  • Room Type: Dining Room
  • Room Level: Main
  • Room Exists: Yes
Room 15
  • Room Type: Office
  • Room Level: Main
  • Room Exists: Yes
Room 16
  • Room Type: Primary Bedroom
  • Room Level: Main
  • Room Exists: Yes
Room 17
  • Room Type: Primary Bathroom
  • Room Level: Main
  • Room Exists: Yes
Room 18
  • Room Type: Half Bath
  • Room Level: Main
  • Room Exists: Yes
Room 19
  • Room Type: Efficiency (Additional)
  • Room Level: Upper 1
  • Room Exists: Yes
Room 20
  • Room Type: Bedroom 4
  • Room Level: Upper 1
  • Room Exists: Yes
Room 21
  • Room Type: Foyer
  • Room Level: Main
  • Room Exists: Yes
Room 22
  • Room Type: Recreation Room
  • Room Level: Lower 1
  • Room Exists: Yes
Room 23
  • Room Type: Exercise Room
  • Room Level: Lower 1
  • Room Exists: Yes
Room 24
  • Room Type: Full Bath
  • Room Level: Lower 1
  • Room Exists: Yes
Room 25
  • Room Type: Office
  • Room Level: Lower 1
  • Room Exists: Yes
Room 26
  • Room Type: Storage Room
  • Room Level: Lower 1
  • Room Exists: Yes
Building Info
Building Info
  • Total Finished SQFT: 8,725.00
  • Total Finished SQFT Source: Estimated
  • Tax Total Finished SQFT: 8,725.00
  • Total SQFT: 8,725.00
  • Total SQFT Source: Estimated
  • Elevators Count: 1
  • Construction Materials: Stone, Stucco
  • Roof: Shingle, Pitched
  • Ext Main Mid-res: http://bright-media02.prd.brightmls.com/bright/images/0000/8048/3670/5772/804836705772_512_384_WM_Mf7A8gsLWYpluwYQ.jpg
  • Wall and Ceiling Types: 9'+ Ceilings, 2 Story Ceilings, Cathedral Ceilings, Vaulted Ceilings
  • Flooring Type: Hardwood, Partially Carpeted
  • Basement Type: Daylight, Partial, Fully Finished, Outside Entrance
  • Foundation Details: Concrete Perimeter
  • Room and Floor: Bedrooms-Main Level-1, Bathrooms Full-Main Level-1, Bathrooms Half-Main Level-1, Bathrooms Half-Main Level-2, Bedrooms-Upper Level 1-1, Bedrooms-Upper Level 1-2, Bedrooms-Upper Level 1-3, Bedrooms-Upper Level 1-4, Bedrooms-Upper Level 1-5, Bathrooms Full-Upper Level 1-1, Bathrooms Full-Upper Level 1-2, Bathrooms Full-Upper Level 1-3, Bathrooms Full-Upper Level 1-4, Bathrooms Full-Lower Level 1-1
  • # Bathrooms Full: 6
  • # Bathrooms Half: 2
  • Other Structure: Above Grade, Below Grade
Lot / Land Information
Lot / Land Information
  • Lot Size Source: Assessor
  • Lot Size Dimensions: 204.00 x 0.00
  • Lot Dimensions Source: Assessor
  • Lot Features: Front Yard, SideYard(s), Rear Yard, Landscaping
  • Fencing: Aluminum
  • Parcel ID: 736831
Parking
Parking
  • Type Of Parking: Driveway, Attached Garage
  • Num of Attached Garage Spaces: 4
  • Driveway - # of Spaces: 6
  • Total Garage Spaces: 4
  • Parking Features: Paved Driveway, Private
  • Garage Features: Built In, Garage Door Opener, Inside Access, Oversized
Interior Features
Interior Features
  • 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
  • Fireplace: Yes
  • Fireplaces Count: 2
  • Fireplace Features: Gas/Propane
  • 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
  • Accessibility Features: Elevator
  • Security Features: Security System, Exterior Cameras, Motion Detectors, Security Gate, Smoke Detector, Surveillance Sys
  • Door Features: ENERGY STAR Qualified Door(s), Sliding Glass, French
  • Window Features: Energy Efficient, Double Pane, Screens
  • Laundry Type: Main Floor, Upper Floor, Washer In Unit, Dryer In Unit, Has Laundry
  • Virtual Tour URL Unbranded: https://vimeo.com/1127524024?share=copy&fl=sv&fe=ci
Exterior Features
Exterior Features
  • Exterior Features: Exterior Lighting, Flood Lights, Lawn Sprinkler, Street Lights
  • Outdoor Living Structures: Patio(s), Enclosed
  • Pool: No Pool
Utilities
Utilities
  • Utilities: Cable TV
  • Heating: Yes
  • Cooling Type: Central A/C
  • Cooling Fuel: Electric
  • Heating Type: Central
  • Heating Fuel: Natural Gas
  • Hot Water: Natural Gas, Tankless
  • Water Source: Public
  • Sewer Septic: Public Sewer
  • Electric Service: 200+ Amp Service, Generator
Confidential Data
Listing Office
  • List Agent AOR: Tri-County Suburban REALTORS
  • List Agent URL: www.DamonMichels.com

Property History for 420 Williamson Road

DateEvent & SourcePriceAppreciation
May 4, 2026

Price Change

BRIGHT #PAMC2177178

$3,695,000—
Apr 27, 2026

Listed (Active)

BRIGHT #PAMC2177178

$3,950,000—
Mar 10, 2010

Closed (Public Record)

Public Record #284836526

$900,000

-3.4% / yr

DateEvent & SourcePrice
05/04/2026

Price Change

BRIGHT #PAMC2177178

$3,695,000
04/27/2026

Listed (Active)

BRIGHT #PAMC2177178

$3,950,000
03/10/2010

Closed (Public Record)

Public Record #284836526

$900,000

-3.4% / yr

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Public Records for 420 Williamson Road

Taxable ValueLand-Additions-Total-
Tax Record2025$37,704 ($3,142 / month)
Home Facts
Beds5Baths7Total Finished SqFt10,712 SqFtAbove Grade Finished SqFt8,725 SqFtFinished Basement SqFt1,987 SqFtStories2Lot Size41,987 SqFtStyleSingle Family ResidenceYear Built2009ZoningR1CountyMONTGOMERYAPN40-00-65536-00-7Fireplace TypeHas Fireplace

Schools near 420 Williamson Road

This home is within Lower Merion School District.
Rating
School
Type
Grades
Distance
Gladwyne School
Public - K to 4
BLACK ROCK MS
Public - 5 to 8
Harriton Senior High School
Public - 9 to 12
The Gladwyne Montessori School
Private - PK to 6
Rating
School
Distance
Gladwyne School
PublicK to 4

BLACK ROCK MS
Public5 to 8

Harriton Senior High School
Public9 to 12

The Gladwyne Montessori School
PrivatePK to 6

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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More information about 420 Williamson Road, Gladwyne, PA 19035

420 Williamson Road is a single family home for sale in Gladwyne, PA 19035. This property was listed for sale on April 27, 2026 by KW Main Line - Narberth, it's currently listed at $3,695,000. It has been on the market for a total of 8 days and was last sold on March 10, 2010. This listing's school district is Lower Merion School District. Nearby schools include Gladwyne School, BLACK ROCK MS and Harriton Senior High School. 420 Williamson Road is a 6-bed, 8-bath, 8,725 sqft single family home built in 2009.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity.

Listing Courtesy of KW Main Line - Narberth

Based on information from one of the following Multiple Listing Services: BRIGHT, Greater LeHigh Valley Regional MLS, Greator Scranton Board of REALTORS® and Pocono Mountains Association of REALTORS®. Information being provided is for the visitor’s personal, noncommercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. The data contained herein is copyrighted by BRIGHT, Greater LeHigh Valley Regional MLS, Greator Scranton Board of REALTORS® and Pocono Mountains Association of REALTORS® is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited. Property information referenced on this web site comes from the Internet Data Exchange (IDX) program of the MLS. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. For the avoidance of doubt, the accuracy of all information, regardless of source, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals.