421 S Perth St is a 960 square foot townhouse on a 780 square foot lot with 3 bedrooms and 1 bathroom. - it last sold on July 07, 2009 for $250,000. Based on Redfin's Philadelphia data, we estimate the home's value is $424,502.
TownhomeProperty Type
1920Year Built
780 sq ftLot Size
$442Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$424,502
$175K since sold in July 2009$3,000 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 9.1% lower than the average sale price ($467K) of 5 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
RSA-5
/CTR - SOCIETY HILL
/CTR - RESIDENTIAL PARKING CONTROL
/CTR - CENTER CITY RESIDENTIAL DISTRICT CONTROL
/NIS
/CTR - CENTER CITY COMMERCIAL DISTRICT CONTROL
Residential Single-Family Attached-5
The RSA, Residential Single-Family Attached districts are primarily intended to accommodate attached and semi-detached houses on individual lots, but may be applied in areas characterized by a mix of housing types, including detached houses. The districts are also intended to provide a density transition between RSD districts and RM districts. The Zoning Code includes five RSA districts that are differentiated primarily on the basis of minimum lot area requirements.
Zone overlays
Center City Overlay District - Center City Residential District Control Area
Narcotics Injection Sites Overlay District
Center City Commercial District Control Area
Permitted uses
Include but are not limited to:
Assembly / meeting place
Garden center
Housing-Single unit
Fire house
Police station
Recreation-Other
Nov 26, 2012 • Final
Bp_alter
Perform tuckpointing on the front and side of a single-family home. Patch and recoat the stucco on the rear of the building. All mortar and materials are subject to historical commission approval.
Remodel
Dec 29, 2009 • Final
Bp_alter
Perform interior alterations to a single-family home. All construction work must comply with standard interior permit requirements.
Remodel
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Basement Information
Basement Finish: Partially Finished
Basement Type: Partial Finished
Heating & Cooling
Heating Type: Hot Water
Room Information
# of Rooms: 6
Exterior
Exterior Information
Physical Condition: Average
Exterior Wall: Brick
View Information
View: Typical
Property Information
Living Sq. Ft: 960
Building Sq. Ft: 960
# of Stories: 2
Legal Description: 60' N OF LOMBARD ST; LOT 16'3"X48'
Lot Information
# of Buildings: 1
Land Sq. Ft: 780
Legal Lot Number: 101
Legal Block Number: 3S10
Municipality Name: PHILADELPHIA
Acres: 0.0179
Depth Footage: 48
Front Footage: 16
Zoning Code: RM1
County Use Description: RES-ROW (3 OR MORE), 2 STORIES
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 1.0
Sq. Ft.: 960
Stories: 2.0
Lot Size: 780 square feet
Style: Townhouse
Year Built: 1920
Year Renovated: —
County: Philadelphia County
APN: 053105200
Home facts updated by county records on Oct 20, 2026
Around this home
Schools
McCall General George A School
Public K-8 • Assigned • 0.1mi
10/10
Franklin Benjamin High School
Public 9-12 • Assigned • 1.4mi
2/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk 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
6/10 Heat Factor
7 days above 104° expected this year, 15 days in 30 years
6/10 Wind Factor
27% chance of strong winds in next 30 years
4/10 Air Factor
4 unhealthy days expected this year, 5 days in 30 years
Provided by First Street
Historical weather
Philadelphia, PA • 19147
Average low and high temperatures (°F)
37
26
41
29
59
40
67
49
74
58
85
68
89
73
83
67
80
65
69
53
57
44
43
31
Jan
Feb
Mar
Apr
May
Jun
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Aug
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Sun exposure
In this area, properties receive around 8.9 hours in
June and 4.4 hours in December, placing it below the
U.S. average for solar exposure.
8.9 hrs
4.4 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$404,000 – $489,000
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