On the Main Line, homes of this caliber are measured not only by the sweep of the land and square footage of the home, but also by the discipline of its stewards—knowing what to improve and knowing what to preserve. Set on 2.25 lush acres of park-like grounds, this spectacular “Legacy Estate” is precisely the kind of storied property the Main Line is known for — a private sanctuary where modern comfort has been woven in with a thoughtful hand, but the soul of the home was never compromised. As you approach the property, slow your pace and admire the scene. Set back from the road, the stone home sits high above a sweeping park-like lawn framed by privacy landscaping, accented by a charming bridge that arcs over a quiet curve of Mill Creek. The driveway offers both a circular turnaround and plentiful parking, perfect for everyday convenience and effortless entertaining. Step through the arched entry into a foyer anchored by a dramatic curved staircase, soaring ceilings with period moldings, and gleaming hardwood floors. To the right, the formal living room is lined with windows and centered on a wood-burning fireplace with new liner and firebox. Beyond, a library with cathedral beamed ceiling, fireplace, hidden bar, and access to the side patios offers one of the home's most inviting retreats. To the left of the foyer, the generously sized dining room features linen wall coverings and French doors opening to a slate patio — equally suited to outdoor parties or morning coffee. Adjacent, a breakfast room with lead-glass windows, beamed ceiling, and slate floor is outfitted with a custom built-in butler's pantry with lighted bar. The Chef's Kitchen delivers both luxury and function: a Lacanche range, Wolf steam oven, oversized island, statuary marble countertops, and generous cabinetry. Beyond, the original staff wing provides two bedrooms, a full marble bath with radiant heat floors, and access to both levels via the back staircase. Upstairs, the primary suite features a vaulted ceiling, gas fireplace, and balcony overlooking the grounds. The primary bath offers a soaking tub, oversized shower, double vanity, marble tile, radiant heat floors, and heated towel racks. Three additional bedrooms are served by two Jack-and-Jill baths, both with radiant heat floors. A hallway laundry room and attic storage complete the upper level. As you decend to lower level, you will find a landing with powder room and door to a patio. Below is the finished lower level-- a destination of its own. A large Recreation Room with fireplace has French doors that open to another slate patio. A redlight sauna, wet bar, powder room and exercise area, all with radiant heat flooring, provide a spa-like setting while the Wine Cellar with 2 zoned refrigeration will accommodate a collection of up to 2500 bottles! A utility room houses 2 new water heaters, new HVAC servicing the basement and 1st floor, the security panel and laundry hookup. A mudroom with boot wall and lockers is conveniently located next to the garage. The two-car garage with new doors houses a reverse osmosis water system, whole-house water softener/chlorine removal system, and EV charging station. Additional improvements to the home include a Generac generator, refurbished windows, two 200-amp electrical panels, heated gutters, a cedar shake roof, irrigation system, and an elevation certificate providing the property with minimal flood insurance. Walking distance to Rosemont train station, downtown Bryn Mawr and Ashbridge Park, with walking trails, sport courts and playground. Top-rated schools, and the Main Line's best dining and shopping. A full list of updates is available upon request.
Est. $5,888 per month, based on comparable rentals
Sale and tax history for 317 Airdale Rd
Sale History
Tax History
Date
Event
Price
BRIGHT MLS #PAMC2177076
Jun 29, 2026
Sold
$3,005,000
$514/sq ft
May 8, 2026
Pending
—
Apr 30, 2026
Listed
$2,950,000
$504/sq ft
Apr 30, 2026
Coming Soon
$2,950,000
$504/sq ft
Apr 24, 2026
Listed
$2,950,000
$504/sq ft
+89
On the Main Line, homes of this caliber are measured not only by the sweep of the land and square footage of the home, but also by the discipline of its stewards—knowing what to improve and knowing what to preserve. Set on 2.25 lush acres of park-like grounds, this spectacular “Legacy Estate” is precisely the kind of storied property the Main Line is known for — a private sanctuary where modern comfort has been woven in with a thoughtful hand, but the soul of the home was never compromised. As you approach the property, slow your pace and admire the scene. Set back from the road, the stone home sits high above a sweeping park-like lawn framed by privacy landscaping, accented by a charming bridge that arcs over a quiet curve of Mill Creek. The driveway offers both a circular turnaround and plentiful parking, perfect for everyday convenience and effortless entertaining. Step through the arched entry into a foyer anchored by a dramatic curved staircase, soaring ceilings with period moldings, and gleaming hardwood floors. To the right, the formal living room is lined with windows and centered on a wood-burning fireplace with new liner and firebox. Beyond, a library with cathedral beamed ceiling, fireplace, hidden bar, and access to the side patios offers one of the home's most inviting retreats. To the left of the foyer, the generously sized dining room features linen wall coverings and French doors opening to a slate patio — equally suited to outdoor parties or morning coffee. Adjacent, a breakfast room with lead-glass windows, beamed ceiling, and slate floor is outfitted with a custom built-in butler's pantry with lighted bar. The Chef's Kitchen delivers both luxury and function: a Lacanche range, Wolf steam oven, oversized island, statuary marble countertops, and generous cabinetry. Beyond, the original staff wing provides two bedrooms, a full marble bath with radiant heat floors, and access to both levels via the back staircase. Upstairs, the primary suite features a vaulted ceiling, gas fireplace, and balcony overlooking the grounds. The primary bath offers a soaking tub, oversized shower, double vanity, marble tile, radiant heat floors, and heated towel racks. Three additional bedrooms are served by two Jack-and-Jill baths, both with radiant heat floors. A hallway laundry room and attic storage complete the upper level. As you decend to lower level, you will find a landing with powder room and door to a patio. Below is the finished lower level-- a destination of its own. A large Recreation Room with fireplace has French doors that open to another slate patio. A redlight sauna, wet bar, powder room and exercise area, all with radiant heat flooring, provide a spa-like setting while the Wine Cellar with 2 zoned refrigeration will accommodate a collection of up to 2500 bottles! A utility room houses 2 new water heaters, new HVAC servicing the basement and 1st floor, the security panel and laundry hookup. A mudroom with boot wall and lockers is conveniently located next to the garage. The two-car garage with new doors houses a reverse osmosis water system, whole-house water softener/chlorine removal system, and EV charging station. Additional improvements to the home include a Generac generator, refurbished windows, two 200-amp electrical panels, heated gutters, a cedar shake roof, irrigation system, and an elevation certificate providing the property with minimal flood insurance. Walking distance to Rosemont train station, downtown Bryn Mawr and Ashbridge Park, with walking trails, sport courts and playground. Top-rated schools, and the Main Line's best dining and shopping. A full list of updates is available upon request.
BRIGHT MLS #1003413055
Apr 14, 2009
Sold
$1,360,000
$233/sq ft
Jul 11, 2008
Listing Removed
—
Jul 11, 2008
Listed
$1,499,000
$256/sq ft
+6
Handsome all stone Norman sits atop 2.2 manicured park-like acres in Northside Bryn Mawr. Beautiful open floor plan combined with gracious living spaces make this home an absolute gem. Spacious formal living room and vaulted library both with fireplaces. Elegant Dining Room that opens to white kitchen with granite center island. Master suite offers wood burning fireplace and a full balcony overlooking the manicured grounds. Finished walk out lower level with media room, shelving, extensive wine cellar, mechanicals, laundry and access to two car garage. Lit pathways, tiered and flat terraces, a private moss patio, two flat grass yards and gentle stream combine to make the grounds of this home truly unique and magical. An impressive stone home crafted in old world tradition for the discerning Main Line buyer.
Public Records
Apr 20, 1992
Sold
$950,000
$162/sq ft
BRIGHT MLS #PAMC566240
Feb 11, 1992
Listing Removed
—
Aug 7, 1991
Listed
$950,000
$162/sq ft
Public Records
Jun 4, 1985
Sold
$500,000
$85/sq ft
Year
Property tax
Land + Additions
Assessment*
2026
$33,811 (+4.6%)
2025
$32,325 (+5.4%)
2024
$30,671 (+4.4%)
2023
$29,392 (+1.9%)
2022
$28,847 (+2.3%)
2021
$28,190 (+2.5%)
2020
$27,502 (+1.8%)
2019
$27,016 (+1.9%)
2018
$26,521 (+1.9%)
2017
$26,023 (+8.4%)
2015
$23,996 (+6.0%)
2014
$22,639
2013
$22,639 (+3.1%)
2011
$21,967 (+4.0%)
2010
$21,125 (−9.3%)
2009
$23,288
Public record
Public record
Zoning
Beds
6
Baths
5
Stories
2
Lot width
246 ft.
Lot depth
—
Lot size
2.2 Acres
Year renovated
—
Sq. Ft.
5,234
Year built
1935
Style
Single Family Residential
County
Montgomery County
APN
400000340007
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Aug 25, 2026.
LDR2
Low Density Residential Districts
LDR2 is a low intensity district intended for detached single-family residential homes and the preservation of the existing neighborhood character.
Directions: West on Montgomery Ave to Right on Airdale. Pass Ashbridge Road. Property on the Right.
Municipality: LOWER MERION TWP
Transportation: Commuter Rail Station less than 1 mile
Public facts
Beds: 6
Baths: 5.0
Sq. Ft.: 5,234
Stories: 2.0
Lot Size: 2.2 acres
Style: Single Family Residential
Year Built: 1935
Year Renovated: —
County: Montgomery County
APN: 400000340007
Home facts updated by county records on Aug 25, 2026
Around this home
Schools
Black Rock Middle School
Public 5-8 • Assigned • 1.6mi
9/10
Harriton Senior High School
Public 9-12 • Assigned • 0.6mi
10/10
Provided by GreatSchools
Climate risks
4/10 Flood Factor
Estimated 19-29% chance of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
5/10 Heat Factor
7 days above 101° expected this year, 14 days in 30 years
6/10 Wind Factor
27% chance of strong winds in next 30 years
4/10 Air Factor
3 unhealthy days expected this year, 6 days in 30 years
Provided by First Street
Historical weather
Bryn Mawr, PA • 19010
Average low and high temperatures (°F)
35
22
40
26
57
37
65
46
71
55
82
65
86
70
80
63
78
61
67
48
55
39
41
27
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
94/ 100
Exceptional sunlight
Sunscore
This home ranks in the top 17% for direct sun exposure in Bryn Mawr. There appears to be minimal shading by surrounding buildings, terrain, and vegetation.
10.1 hrs
5.7 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$2.88M – $3.49M
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