OFF MARKET
21 Duncan St, Charleston, SC 29403
Off market jul 2021 for $510K
$1,185,038
Est. refi paymentEst. refi $3,574/mo
6
bd
•
2 ba
•
1,638
sq ft

21 Duncan St, Charleston, SC 29403

map-entry

About this home

Multi-familyProperty Type
1840Year Built
1,755 sq ftLot Size
$723Est. Price/Sq.Ft.
Listed by • Carolina One Real Estate
Bought with Andy S Ackerman • Exit Realty Charleston Group
Source:Charleston Trident MLS #2316875

Redfin Estimate

$1,185,038
$675K since sold in July 2021$35K since October

This home's estimate is 18.5% lower than the average sale price ($1.45M) of 6 comparable homes.

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Earn from this home

Sell
$748,932
Est. take-home

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Refinance
$0
Est. cash available

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Market trends in 29403, SC

Last updated October 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-list price
96.6%

+1.1% MoM

Median sale price
$954K

$63K MoM

Avg. days on market
63d

1 days MoM

Recently sold homes
64

18 MoM

New listings for sale

Provided by Redfin

Sale history for 21 Duncan St

Tax history for 21 Duncan St

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Zoning and permits

DR-1

OLD AND HISTORIC DISTRICT

AR

OLD CITY HEIGHTS DISTRICT - 2.5-3

SR CAT 1

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
  • Old and Historic District
  • Amusement and Recreation Services Overlay Zone
  • Residential Short Term Rental - Category 1
Permitted uses

Include but are not limited to:

  • Housing-Single unit
  • Housing-Multiple units
  • Golf related

Property details

Around this home

Schools

Memminger Elementary School

Public PreK-5 • Assigned • 0.4mi

3/10
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

10/10 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, 20 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
89
75
92
79
85
74
83
69
73
60
71
54
61
44
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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
$1.13M – $1.36M

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Home values near 21 Duncan St

Data from public records.

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