4100 Westfax Dr, Chantilly, VA 20151 Property Records

Fairfax County property record for 4100 Westfax Dr, Chantilly, VA 20151

Property Summary

Property Type	General Industrial
Details	95,000 sqft · built 1987
Lot Size	7.05 acres (307,214 sqft)
Owner	Company Name on File
Last Sale	$28,000,000 (May 2022)
Tax Bill	$195,325 (2025)
Deeds & Mortgages	Aug 2022 Mortgage May 2022 Sale + 1 more
Flood Zone	Zone X (minimal risk)
APN	`0343-09-0003A`

Property Details

APN / Parcel Number

Primary APN	`0343-09-0003A`

Interior

Stories	1 Story
Building Area	95,000 sqft Gross Area

Exterior

Year Built	Built 1987
Effective Year Built	Effective 1987
Exterior Material	Brick
Construction Type	Masonry / Concrete Block
Roof Material	Tar & Gravel
Lot Area	307,214 sqft (7.05 acres)
View / Lot	Commercial

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	HVAC
Heating Fuel	Electric

Location & Zoning

Street Address	4100 WESTFAX DR
City	CHANTILLY
State	VA
Zip	20151-1537
Property Category	Industrial
Property Type	Industrial > General Industrial
Local Zoning Code	550
Legal Description	WESTFAX INDUSTRIAL PARK LT 3A
Legal Subdivision	WESTFAX INDUSTRIAL PARK
Legal Block	2
Legal Lot Number	3A
Jurisdiction	FAIRFAX VA
Township / Civil Division	SULLY
Census Block Group	2
Census Block	2044
Census Tract	490104

Owner

4100 Westfax Dr, an industrial property, is owned by a company that bought it in May 2022.

Source: Fairfax County records, as of September 22, 2025

Owner of Record	Company Name on File
Mailing Address	14555 AVION PKWY, 110, CHANTILLY, VA 20151-1124
Owner Type	Company
Vesting	Limited Partnership

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
Aug 19, 2022	Deed of Trust, Mortgage · Commercial Mortgage NATIXIS NEW YORK BRANCH
May 18, 2022	Special Warranty Deed, Transfer FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TTL INS CO
Oct 23, 2018	Loan Modification, Mortgage · Line of Credit CAPITAL ONE NAT'L ASSN

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	May 18, 2022 · Amount on File
Deed Sale	May 18, 2022 · Amount on File
Prior Sale	Jan 16, 2007 · Amount on File
Deed Document Number	202240640
Deed Book / Page	27658 / 1107
Record Updated	Jun 8, 2026

August 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	FAIRFAX VA
Property Address	4100 WESTFAX DR, CHANTILLY, VA 20151-1537
Transaction Type	Mortgage
Record Updated	Oct 18, 2022
Title Company	FIDELITY NATIONAL TTL INS CO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0061706001
Date	Aug 19, 2022
Book Page	27739/2089
Instrument	2022061706.001

Lender

Name	NATIXIS NEW YORK BRANCH
Type	Non-Lending Institution
Address	NEW YORK, NY 10020

Agreement

Type	Commercial Mortgage
Amount	Amount on Record

May 2022: Special Warranty Deed, Transfer

Document Type	Special Warranty Deed
Jurisdiction	FAIRFAX VA
Recording Date	May 18, 2022
Property Address	4100 WESTFAX DR, CHANTILLY, VA 20151-1537
Document Number	0040640002
Book / Page	27658 / 1107
Map Reference	MB 7112 PG 1735
Instrument Date	May 18, 2022
Instrument	2022040640.002
Transaction Type	Transfer
Record Updated	Oct 18, 2022
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TTL INS CO

Transaction

Amount	Amount on Record
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4100 WESTFAX DR, CHANTILLY, VA 20151-1537

October 2018: Loan Modification, Mortgage

Document Type	Loan Modification
Jurisdiction	FAIRFAX VA
Recording Date	Oct 23, 2018
Property Address	4100 WESTFAX DR, CHANTILLY, VA 20151-1537
Book / Page	025569 / 000785
Instrument Date	Oct 22, 2018
Instrument	60615001
Transaction Type	Mortgage
Record Updated	Nov 14, 2018
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NAT'L TITLE INS CO

Transaction

Tax	$0.00
Additional	Multiple Parcels

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	5454 WISCONSIN AVE #700 CHEVY CHASE MD 208156937, 700, CHEVY CHASE, MD 20815-6937

Mortgage

Document Number	2018060615001
Date	Oct 23, 2018
Book Page	025569/000785
Instrument	60615001

Lender

Name	CAPITAL ONE NAT'L ASSN
Address	1680 CAPITAL ONE DR # 10TH, MCLEAN, VA 22102-3407

Agreement

Type	Line of Credit
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

The 2025 property tax bill for 4100 Westfax Dr was $195,325, down 2.2% from the year before.

Source: Fairfax County assessment roll, as of September 22, 2025

Property Jurisdictions

Type	Name
State	Virginia
County	Fairfax County
Unified School District	Fairfax County Public Schools (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$195,325.00 (-2.22%)	$13,941,870 Land $10,138,000 Building $3,803,870	$13,941,870 Land $10,138,000 Building $3,803,870
2024	$199,753.00 (+1.1%)
2023	$197,580.00	$13,978,070 Land $6,759,000 Building $7,219,070	$13,978,070 Land $6,759,000 Building $7,219,070

Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.

Flood

FEMA maps place 4100 Westfax 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 December 7, 2025 · 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
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	1 in force

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 4100 Westfax 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 80% of the US · lower than 71% of Virginia
Wildfire Likelihood	0.01% annual chance
Exposure	Direct burnable vegetation

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	FAIRFAX COUNTY WATER AUTHORITY serves 1,121,613 people · EPA ID VA6059501
Water Source	Surface water
Last State Inspection	Mar 2022
Lead	1 ppb (2021–2023) 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 450 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Verizon Fiber · Fixed Wireless in parts of the area	2,300 / 2,300
AT&T Fixed Wireless	100 / 20

May also be available: Cox Communications, T-Mobile.

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