Charleston County property record for 646 Atlantic St, Mount Pleasant, SC 29464
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,827 sqft · built 1950 |
| Lot Size | 0.25 acres (10,890 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $1,641 (2025) |
| Deeds & Mortgages | Jul 2023 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 532-06-00-119 |
| Primary APN | 532-06-00-119 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Stories | 1 Story |
| Building Area | 1,827 sqft Living Area |
| 1st Floor Area | 1,827 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | Bungalow |
| Exterior Material | Brick Veneer |
| Foundation Type | Slab (Mat/Raft) |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 10,890 sqft (0.25 acres) |
| Lot Dimensions | 180 ft deep x 60 ft wide |
| Pool Area | 450 sqft |
|---|---|
| Porch | Slab |
| Porch Area | 66 sqft |
| Shed | 1 Shed |
| Shed Area | 256 sqft |
| Total Buildings | 2 Buildings |
| Heating System | Heat Pump |
|---|
| Street Address | 646 ATLANTIC ST |
|---|---|
| City | MOUNT PLEASANT |
| State | SC |
| Zip | 29464-4467 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SUBDIVISION NAME -MT PLEASANT HGTS DESCRIPTION -LT 73 |
| Legal Subdivision | MT PLEASANT HGTS |
| Legal Lot Number | 73 |
| Jurisdiction | CHARLESTON SC |
| Township / Civil Division | MOUNT PLEASANT |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 4701 |
646 Atlantic St is owner-occupied and held in a trust since July 2023.
Source: Charleston County records, as of September 23, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 646 ATLANTIC ST, MOUNT PLEASANT, SC 29464-4467 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
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 Transfer Date | Jul 27, 2023 |
| Transfer Doc | 0011940697 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CHARLESTON SC |
| Recording Date | Jul 31, 2023 |
| Property Address | 646 ATLANTIC ST, MOUNT PLEASANT, SC 29464-4467 |
| Document Number | 0011940697 |
| Book / Page | 1194 / 697 |
| Map Reference | MB G PG 99 |
| Instrument Date | Jul 27, 2023 |
| Transaction Type | Transfer |
| Record Updated | Sep 25, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 646 ATLANTIC ST, MOUNT PLEASANT, SC 29464-4467 |
The 2025 property tax bill for 646 Atlantic St was $1,641, up 11.6% 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 | $1,641.00 (+11.63%) | $399,534 (+2,774.35%) Land $219,063 Building $180,471 | $1,549,700 Land $800,000 Building $749,700 |
| 2024 | $1,470.00 | $13,900 | |
| 2022 | $1,334.00 | $13,900 | $639,800 Land $350,800 Building $289,000 |
| 2020 | $639,800 Land $350,800 Building $289,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 646 Atlantic St in Zone X, an area of minimal flood risk, though there have been 120 flood claims nearby since 1979.
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 101 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 101 in force |
| Nearby Flood Claims | 120 (1979–2017) |
| Claims Outside the SFHA | 21 of 120 |
| Most Recent Claim | Sep 2017 · Hurricane Irma |
| 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 646 Atlantic St 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 95% of the US · lower than 98.6% 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 379 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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