Charleston County property record for 721 Williamson Dr, Mount Pleasant, SC 29464
| Property Type | Townhouse |
|---|---|
| Details | 2 bd · 1.5 ba · 1,132 sqft · built 1980 |
| Lot Size | 0.04 acres (1,742 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $3,339 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 517-04-00-193 |
| Primary APN | 517-04-00-193 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Stories | 1 Story |
| Building Area | 1,132 sqft Living Area |
| 1st Floor Area | 1,132 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Townhouse |
| Exterior Material | Brick Veneer |
| Foundation Type | Slab (Mat/Raft) |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 1,742 sqft (0.04 acres) |
| Lot Dimensions | 50 ft deep x 38 ft wide |
| Porch | Slab |
| Porch Area | 25 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Electric |
| Street Address | 721 WILLIAMSON DR |
|---|---|
| City | MOUNT PLEASANT |
| State | SC |
| Zip | 29464-3541 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Townhouse |
| Legal Description | SUBDIVISION NAME -BAY TREE DESCRIPTION -UNIT E LOT E MASTER 24 |
| Legal Subdivision | BAY TREE |
| Legal Lot Number | E |
| Jurisdiction | CHARLESTON SC |
| Township / Civil Division | MOUNT PLEASANT |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 4607 |
721 Williamson Dr, a townhouse, is owned by an individual who acquired it in December 2008.
Source: Charleston County records, as of September 23, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 258 E 7TH ST, NEW YORK, NY 10009-6082 |
| 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 | Name on Deed |
|---|---|
| Last Transfer Date | Dec 3, 2008 |
| Transfer Doc | 00310937 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 721 Williamson Dr was $3,339, up 11.8% from the year before.
Source: Charleston County assessment roll, as of August 1, 2025
| Type | Name |
|---|---|
| State | South Carolina |
| County | Charleston County |
| Municipality | Mount Pleasant Town |
| Unified School District | Charleston County School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $3,339.00 (+11.82%) | $216,625 (+1,817.04%) Land $51,640 Building $164,985 | $397,100 Land $140,000 Building $257,100 |
| 2024 | $2,986.00 | $11,300 | |
| 2022 | $2,713.00 | $11,300 | $247,500 Land $59,000 Building $188,500 |
| 2020 | $247,500 Land $59,000 Building $188,500 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 721 Williamson Dr in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective September 9, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 177 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 177 in force |
| Nearby Flood Claims | 89 (1982–2025) |
| Claims Outside the SFHA | 36 of 89 |
| Most Recent Claim | Jun 2025 · rainfall accumulation |
| 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.
Wildfire risk around 721 Williamson Dr is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 98% of the US · lower than 99.4% of South Carolina |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond 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 | MT PLEASANT WATERWORKS serves 91,500 people · EPA ID SC1010002 |
|---|---|
| Water Source | Purchased surface water from CHARLESTON WATER SYSTEM |
| Last State Inspection | Dec 2022 |
| Lead | 1 ppb (2024–2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| 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 328 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 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: WOW Internet, Cable & Phone.
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