Charleston County property record for 20 Colonial St, Charleston, SC 29401
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3.5 ba · 3,277 sqft · built 1910 |
| Lot Size | 0.09 acres (3,920 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,250,000 (Sep 2016) |
| Tax Bill | $7,859 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 457-12-03-012 |
| Primary APN | 457-12-03-012 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Stories | 2 Stories |
| Building Area | 3,277 sqft Living Area |
| Gross Area | 4,251 sqft |
| 1st Floor Area | 1,677 sqft |
| Upper Floors Area | 1,600 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1910 |
|---|---|
| Effective Year Built | Effective 1910 |
| Architectural Style | Victorian |
| Exterior Material | Wood Siding |
| Foundation Type | Slab (Mat/Raft) |
| Roof Type | Hip |
| Roof Material | Galvanized Metal |
| Lot Area | 3,920 sqft (0.09 acres) |
| Lot Dimensions | 100 ft deep x 40 ft wide |
| Porch | Slab |
|---|---|
| Porch Area | 387 sqft |
| Deck Area | 195 sqft |
| Patio Area | 195 sqft |
| Heating System | Heat Pump |
|---|
| Street Address | 20 COLONIAL ST |
|---|---|
| City | CHARLESTON |
| State | SC |
| Zip | 29401-1808 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SUBDIVISION NAME -20 COLONIAL ST DESCRIPTION -LT 18 |
| Legal Subdivision | 20 COLONIAL ST |
| Legal Lot Number | 18 |
| Jurisdiction | CHARLESTON SC |
| Township / Civil Division | CHARLESTON CENTRAL |
| Census Block Group | 3 |
| Census Block | 3007 |
| Census Tract | 100 |
20 Colonial St is owned and occupied by two individuals who bought it in September 2016.
Source: Charleston County records, as of September 23, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 20 COLONIAL ST, CHARLESTON, SC 29401-1808 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 6, 2016 · Amount on File |
| Deed Sale | Sep 6, 2016 · Amount on File |
| Deed Book / Page | 581 / 28 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 20 Colonial St was $7,859, up 8.5% from the year before.
Source: Charleston County assessment roll, as of August 1, 2025
| Type | Name |
|---|---|
| State | South Carolina |
| County | Charleston County |
| Municipality | Charleston City |
| Unified School District | Charleston County School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $7,859.00 (+8.47%) | $1,653,125 (+2,775%) Land $1,003,600 Building $649,525 | $2,550,400 Land $1,003,600 Building $1,546,800 |
| 2024 | $7,245.00 | $57,500 | |
| 2022 | $6,835.00 | $57,500 | $1,470,154 Land $919,254 Building $550,900 |
| 2020 | $1,470,154 Land $919,254 Building $550,900 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 20 Colonial St in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective September 9, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | 11.0 ft |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on File median of 216 individual policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 303 units insured incl. 87 condo units |
| Nearby Flood Claims | 647 (1979–2025) |
| Most Recent Claim | Oct 2025 · tidal / storm surge |
| Claims by Event |
|
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
The area around 20 Colonial St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CHARLESTON WATER SYSTEM serves 278,771 people · EPA ID SC1010001 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Feb 2024 |
| Lead | 4 ppb (2022–2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Corrosion control Jul 2025 |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 485 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T.
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