20 Line St is a 1,280 square foot townhouse on a 2,760 square foot lot with 4 bedrooms and 1.5 bathrooms. - it last sold on October 06, 1997 for $40,000. Based on Redfin's Charleston data, we estimate the home's value is $415,160.
TownhomeProperty Type
1972Year Built
2,760 sq ftLot Size
$324Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$415,160
$375K since sold in October 1997$8,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 32.5% lower than the average sale price ($615K) of 6 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
DR-2F
OLD CITY HEIGHTS DISTRICT - 2.5-3
AR
SR CAT 2
Diverse Residential District
The DR districts allow multi-family residential (3 or more) dwellings and one-family attached dwellings as well as single- and two-family dwellings. Density limitations are 6.0, 9.0, 12.0, 19.4, 19.4, 26.4 and 26.4 units per acre respectively. Within the DR-1, DR-1F, DR-2, DR-2F districts, the Board of Zoning Appeals may approve as a special exception, fraternity houses, sorority houses, dormitories, and homes for the elderly.
Zone overlays
Amusement and Recreation Services Overlay Zone
Short Term Rental Overlay Zone - Category 2
Permitted uses
Include but are not limited to:
Housing-Single unit
Housing-Multiple units
Golf related
Aug 26, 2025 • Final
Plumbing - single family/duplex dwelling - alteration or addition
Remove and replace a water heater.
Plumbing
Water heater
Sep 25, 2024 • Final
Permit - roofing, residential alteration/repair
Tear off and replace the existing roof on a residential building.
Roofing
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
Bathroom Information
# of Full Baths: 1
# of 1/2 Baths: 1
Heating & Cooling
Heating Fuel Type: Electric
Heating Type: Baseboard Electric
Exterior
Exterior Information
Foundation Type: Slab
Building Style Type: Townhouse
Exterior Wall: Brick Veneer
Roof Shape Type: Gable
Building Type: Residential
Property Information
Living Sq. Ft: 1,280
Ground Floor Sq. Ft: 640
Building Sq. Ft: 1,304
# of Stories: 2
Legal Description: DESCRIPTION -LOT A PLATSUFFIX P-80 POLTWP 004
Lot Information
# of Buildings: 1
Land Sq. Ft: 2,760
Legal Lot Number: A
Municipality Name: CITY OF CHARLESTON
Acres: 0.0634
Depth Footage: 138
Front Footage: 20
County Use Description: RESID-TWH
Financial
Assessor Information
Assessment Year: 2025
Tax District County: CITY OF CHARLESTON
Public facts
Beds: 4
Baths: 1.5
Sq. Ft.: 1,280
Stories: 2.0
Lot Size: 2,760 square feet
Style: Townhouse
Year Built: 1972
Year Renovated: —
County: Charleston County
APN: 4590504200
Home facts updated by county records on Aug 14, 2026
Around this home
Schools
Sanders-Clyde Elementary School
Public PreK-5 • Assigned • 0.3mi
7/10
Simmons Pinckney Middle School
Public 6-8 • Assigned • 0.9mi
4/10
Burke High School
Public 9-12 • Assigned • 0.9mi
1/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
8/10 Flood Factor
Estimated 80%+ 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
10/10 Heat Factor
7 days above 105° expected this year, 19 days in 30 years
9/10 Wind Factor
99% chance of strong winds in next 30 years
3/10 Air Factor
3 unhealthy days expected this year, 3 days in 30 years
Provided by First Street
Historical weather
Charleston, SC • 29403
Average low and high temperatures (°F)
56
38
63
45
72
53
78
62
82
69
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91
78
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83
71
76
61
71
54
61
44
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Sun exposure
In this area, properties receive around 9.2 hours in
June and 5.5 hours in December, placing it above the
U.S. average for solar exposure.
9.2 hrs
5.5 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$395,000 – $478,000
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