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Property profile & analytics
FOR LEASE
Warehouses
4001 Westfax Dr Chantilly, VA 20151
Entity Owned
4-yr Hold
Absentee Owner
Free & Clear
Property ID
US87-2107805
For Lease
1 / 2
$16.50 SF/Yr
4001 Westfax Dr, Chantilly, VA 20151
View Listing →
Property profile
Verified
Property type
Warehouses
Use group
MINI-WAREHOUSE, STORAGE
Year built
1988
Construction
BRICK
Total area
150,845 SF
Lot
8.06 ac (351,057 SF)
Zoning code
I-5(INDUSTRIAL GENERAL)
APN
034-3-09-0006-A
UPID
US87-2107805
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors
Implied cap rate, NOI & suggested price
Cap vs submarket · NOI estimate · 3 price anchors
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$29.29M
Blend (final)
Blend
$38.53M
Owner & transaction history
Westfax Property Owner D & E LP · 4 yrs held
Westfax Property Owner D & E LP
since 2022
Last sale
$44.9M
5 recorded transactions
Zoning & alternative use
I-5(INDUSTRIAL GENERAL) · Chantilly, VA
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Neighborhood: shopping center
$55.6M
+67.3%
Industrial (general)
$51.3M
+54.3%
Auto repair, garage
$50.4M
+51.5%
Cap rate
Implied · in-place · derived from last sale + estimated NOI
Implied Cap rate
#1
Implied · in-place · NOI ÷ last sale
In-place · derived from last sale + estimated NOI
Cap rate, NOI & submarket benchmark
Implied cap rate vs Chantilly submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Chantilly submarket · NOI estimate · typical band, median & reading
Refine your cap rate
8-question underwriting flow
1.
Property current status — Going-In vs Stabilized
2.
Price for denominator — asking / offer / market
3.
Leasing status & lease structure (NNN / Gross)
4.
Tenant risk profile & vacancy assumption
5.
Upload T12 / rent roll / OM (optional)
Refine in 60 seconds, get exact suggested price
T12 upload · Submarket benchmarks · Sensitivity grid
Suggested price · 3 cap rate anchors
Income approach @ 5% / 7% / 9% — aggressive / typical / conservative
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · Implied $/SF per anchor · Sensitivity grid
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · implied $/SF · sensitivity
Value
AI, CAP & Alternative Use estimations · Realmo proprietary blendValue Estimations
Based on Realmo’s proprietary methodology
AI Approach
Method
Estimation
Statistic approach
$34,925,000
ML approach
by Request
CAP Approach
CAP Return
Estimation
6%
by Request
6.5%
by Request
7%
by Request
Alternative Use
Use
Estimation
WAREHOUSE, STORAGE
$33,250,000
Current use
NEIGHBORHOOD: SHOPPING CENTER
$55,615,000
Change: +67% · Conversion: Moderate
INDUSTRIAL (GENERAL)
$51,310,000
Change: +54% · Conversion: Easy
AUTO REPAIR, GARAGE
$50,360,000
Change: +51% · Conversion: Easy
OFFICE BUILDING
$33,665,000
Change: +1% · Conversion: Difficult
Blend value · Realmo final
$38.53M
Range $34.67M – $42.38M · ±10% · vs last sale $44.94M (May 18 2022)
Last sale anchor
$44.94M
May 18 2022
Realmo estimate · informational only.
These numbers are calculated by our models from public records and may not reflect actual market value.
Not an appraisal.
Verify with a licensed appraiser before transacting. Realmo accepts no liability for divergence from real-world outcomes.
View the full estimation — every method, every assumption
Confidence drivers & risk notes · Custom comparable set · Free for first 3 / day
Full estimation methodology
Every method · every assumption · confidence drivers
Price per SF
Sale + rent benchmarks
Subject property
$255 / SF
Submarket sale & rent benchmarks
Median sale $/SF · Asking & closed rent · Submarket vacancy
Submarket sale & rent benchmarks
Median sale $/SF · asking & closed rent · submarket vacancy
Property tax & assessments
Tax year 2024Property tax & assessments
Tax year 2024
Tax billed
$300,228
Tax year 2024
Assessed value
$21,090,860
Assessed 2024
Previous assessed
$21,999,660
-4.1% YoY
Effective rate
1.42%
On assessed value
Assessed land
$2,632,930
Assessed improvement
$18,457,930
Land market value
$2,632,930
Improvement market value
$18,457,930
Total market value
$21,090,860
Applied tax rate
9.0000
Comparables
6 recent transactions · within 1.5 miComparable in this city
6 recent transactions
Comparable in this City
Similar Nearby for Sale
Similar Nearby for Lease
Recent comparable sales
Sale price & price/SF · Sale date & distance · Adjustments & confidence
Recent comparable sales
Sale price & $/SF · sale date & distance · adjustments
Property description
Physical attributes from public recordsBuilding & lot
Public records
Property type
Warehouses
Use group
MINI-WAREHOUSE, STORAGE
Status
For Lease
Year built
1988
Construction
BRICK
Heating
OTHER
Cooling
YES
Stories
2
Total area
150,845 SF
Lot
8.06 ac (351,057 SF)
Zoning code
I-5(INDUSTRIAL GENERAL)
APN
034-3-09-0006-A
UPID
US87-2107805
Jurisdiction
FAIRFAX
Metro division
WASHINGTON-ARLINGTON-ALEXANDRIA, DC-VA-MD-WV METROPOLITAN DIVISION
Zoning & alternative use
I-5(INDUSTRIAL GENERAL) · Chantilly, VA
Zoning I-5(INDUSTRIAL GENERAL) · permitted uses
I-5(INDUSTRIAL GENERAL) · Chantilly, VA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Chantilly. Always verify with local authorities before improvements.
Alternative use value scenarios
Repositioning upside vs current use
WAREHOUSE, STORAGE Current
Est. value
$33.3M
NEIGHBORHOOD: SHOPPING CENTER
Est. value
$55.6M
INDUSTRIAL (GENERAL)
Est. value
$51.3M
AUTO REPAIR, GARAGE
Est. value
$50.4M
OFFICE BUILDING
Est. value
$33.7M
WAREHOUSE, STORAGE Current
NEIGHBORHOOD: SHOPPING CENTER
INDUSTRIAL (GENERAL)
AUTO REPAIR, GARAGE
OFFICE BUILDING
Alternative use deep dive — conversion cost, permits, timeline
Conversion cost estimate · Permit path & risks · Stabilized NOI per option
Alternative use deep dive
Conversion cost · permit path · stabilized NOI per option
Building & site characteristics
From public records
Year built
1988
Construction
BRICK
Heating
OTHER
Cooling
Yes
Stories
2
Lot
8.06 ac
Current owner
From public records · entity-resolved
Westfax Property Owner D & E LP
Entity
Free & Clear · 4 yrs held
Mailing address
14555 AVION PKWY #110, CHANTILLY, VA 20151-1117
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2022
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
5 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Aug 19, 2022
—
Westfax Property Owner A LP
—
Deed
related
$80,197,500 · Natixis New York Branch
May 18, 2022
$44,940,000
Westfax Property Owner D & E LP
Steuart Westfax D E LLC
Special Warranty Deed
—
Oct 23, 2018
—
Steuart Westfax A LLC
—
Loan Modification
related
$40,000,000 · Capital One Nat'l Assn
Jan 16, 2007
$18,275,654
Steuart-westfax D/e LLC
Watch Holdings LLC
Grant Deed
—
—
—
Steuart-westfax A LLC
—
Loan Modification
related
$41,500,000 · Capital One NA
Coming soon
Costs & Benchmarks
Operating expenses, capex projections, utility benchmarks, and submarket comparables — all in one view.
Coming soon
Risks
Flood, climate, environmental, title, and tenant-concentration risk — surfaced with mitigations and source citations.
Try Rey
Ask anything about this address in plain English.
“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
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