662 Williamson Dr, Mount Pleasant, SC 29464 Property Records

Charleston County property record for 662 Williamson Dr, Mount Pleasant, SC 29464

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 2,442 sqft · built 1988
Lot Size	0.26 acres (11,326 sqft)
Owner	Individual Name on File
Last Sale	$506,000 (May 2020)
Tax Bill	$2,284 (2025)
Deeds & Mortgages	May 2020 Sale & Mortgage Feb 2019 Mortgage
Flood Zone	Zone X (moderate risk)
APN	`517-04-00-171`

Property Details

APN / Parcel Number

Primary APN	`517-04-00-171`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Stories	2 Stories
Building Area	2,442 sqft Living Area
1st Floor Area	1,242 sqft
Upper Floors Area	1,200 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1988
Effective Year Built	Effective 1988
Architectural Style	Multi-Family
Exterior Material	Wood Siding
Foundation Type	Slab (Mat/Raft)
Roof Type	Gable
Roof Material	Asphalt
Lot Area	11,326 sqft (0.26 acres)
Lot Dimensions	160 ft deep x 72 ft wide
Garage Type	Attached
Garage Area	400 sqft
Parking Spaces	2 Parking Spaces

Exterior Amenities

Porch	Slab
Porch Area	252 sqft
Deck Area	494 sqft
Patio Area	494 sqft

Utilities, Heating & Cooling

Heating System	Heat Pump

Location & Zoning

Street Address	662 WILLIAMSON DR
City	MOUNT PLEASANT
State	SC
Zip	29464-3520
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	SUBDIVISION NAME -BAY TREE DESCRIPTION -LOT SF-6
Legal Subdivision	BAY TREE
Legal Lot Number	S,F-6
Jurisdiction	CHARLESTON SC
Township / Civil Division	MOUNT PLEASANT
Census Block Group	3
Census Block	3006
Census Tract	4607

Owner

662 Williamson Dr is owned and occupied by an individual who bought it in May 2020.

Source: Charleston County records, as of October 20, 2026

Owner of Record	Individual Name on File
Mailing Address	662 WILLIAMSON DR, MOUNT PLEASANT, SC 29464-3520
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.

Deeds, Mortgages & Sale History

Date	Document
May 4, 2020	Grant Deed, Transfer · Conventional with PMI ATLANTIC COAST MTG
Feb 15, 2019	Deed of Trust, Mortgage · Conventional with PMI NAVY FCU

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	May 4, 2020 · Amount on File
Deed Sale	May 4, 2020 · Amount on File
Prior Sale	Aug 17, 2015 · Amount on File
Deed Book / Page	879 / 570
Prior Transfer Date	Jul 22, 2003
Prior Transfer Doc	S459/0721
Record Updated	Oct 29, 2026

May 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CHARLESTON SC
Recording Date	May 4, 2020
Property Address	662 WILLIAMSON DR, MOUNT PLEASANT, SC 29464-3520
Document Number	0879/0570
Book / Page	000879 / 000570
Instrument Date	Apr 16, 2020
Transaction Type	Transfer
Record Updated	Jun 5, 2020
Title Company	ATTORNEY ONLY

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$506.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	662 WILLIAMSON DR MOUNT PLEASANT SC 294643520, MOUNT PLEASANT, SC 29464-3520

Mortgage

Document Number	879/0571
Date	May 4, 2020
Book Page	000879/000571

Lender

Name	ATLANTIC COAST MTG
Type	Mortgage Company
Address	FAIRFAX, VA 22030

Agreement

Type	Conventional with PMI
Amount	Amount on Record
Term	360 Months
Due	May 3, 2050

February 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	CHARLESTON SC
Property Address	662 WILLIAMSON DR, MOUNT PLEASANT, SC 29464-3520
Document Number	0778/0817
Instrument Date	Feb 15, 2019
Transaction Type	Mortgage
Record Updated	Mar 21, 2019
Title Company	ATTORNEY ONLY

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	662 WILLIAMSON DR MOUNT PLEASANT SC 294643520, MOUNT PLEASANT, SC 29464-3520

Mortgage

Document Number	0778/0817
Date	Feb 21, 2019
Book Page	000778/000817

Lender

Name	NAVY FCU
Type	Credit Union
Address	VIENNA, VA 22180

Agreement

Type	Conventional with PMI
Amount	Amount on Record
Term	180 Months
Due	Feb 20, 2034

Tax Assessment & Valuation

The 2025 property tax bill for 662 Williamson Dr was $2,284, up 12.2% from the year before.

Source: Charleston County assessment roll, as of August 1, 2025

Property Jurisdictions

Type	Name
State	South Carolina
County	Charleston County
Municipality	Mount Pleasant Town
Unified School District	Charleston County School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$2,284.00 (+12.24%)	$581,900 (+2,775%) Land $342,139 Building $239,761	$996,500 Land $360,000 Building $636,500
2024	$2,035.00	$20,240
2022	$1,869.00	$20,240	$506,000 Land $297,512 Building $208,488
2020			$506,000 Land $297,512 Building $208,488

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.

Flood

FEMA maps place 662 Williamson Dr in Zone X, an area of moderate flood risk, within 100 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 moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Nearest Special Flood Hazard Area	Zone AE, within 100 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	Hurricane Matthew, Oct 2016 · 5 claims Severe Storms And Flooding, Oct 2015 · 4 claims Hurricane Hugo, Sep 1989 · 54 claims

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

Wildfire risk around 662 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.

Drinking Water

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

Violations Reported to EPA

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.

Internet Providers

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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