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Property profile & analytics
OFF-MARKET
Estimated value
$15,050,000
Office buildings
4501 Singer Ct Chantilly, VA 20151-1733
Entity Owned
15-yr Hold
Free & Clear
Property ID
US87-1013442
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
2000
Construction
STEEL FRAME
Total area
102,129 SF
Lot
5.85 ac (254,760 SF)
Zoning code
I-5(INDUSTRIAL GENERAL)
APN
034-3-10-0010-C1
UPID
US87-1013442
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
$18.39M
Blend (final)
Blend
$15.05M
Owner & transaction history
Southgate Owner I LLC · 15 yrs held
Southgate Owner I LLC
since 2011
3 recorded transactions
Zoning & alternative use
I-5(INDUSTRIAL GENERAL) · Chantilly, VA
Permitted uses
Permitted uses
Allowed · conditional · prohibited
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
by Request
ML approach
by Request
CAP Approach
CAP Return
Estimation
6%
by Request
6.5%
by Request
7%
by Request
Alternative Use
Use
Estimation
OFFICE BUILDING
$22,790,000
Current use
WAREHOUSE, STORAGE
$22,510,000
Change: -1% · Conversion: Difficult
Blend value · Realmo final
$15.05M
Range $13.55M – $16.56M · ±10%
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
$147 / 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
$202,346
Tax year 2024
Assessed value
$14,214,650
Assessed 2024
Previous assessed
$15,556,590
-8.6% YoY
Effective rate
1.42%
On assessed value
Assessed land
$1,531,940
Assessed improvement
$12,682,710
Land market value
$1,531,940
Improvement market value
$12,682,710
Total market value
$14,214,650
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
Office buildings
Use group
OFFICE BUILDING
Status
Off-Market
Year built
2000
Construction
STEEL FRAME
Heating
OTHER
Cooling
YES
Stories
3
Total area
102,129 SF
Lot
5.85 ac (254,760 SF)
Zoning code
I-5(INDUSTRIAL GENERAL)
APN
034-3-10-0010-C1
UPID
US87-1013442
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
OFFICE BUILDING Current
Est. value
$22.8M
WAREHOUSE, STORAGE
Est. value
$22.5M
OFFICE BUILDING Current
WAREHOUSE, STORAGE
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
2000
Construction
STEEL FRAME
Heating
OTHER
Cooling
Yes
Stories
3
Lot
5.85 ac
Current owner
From public records · entity-resolved
Southgate Owner I LLC
Entity
Free & Clear · 15 yrs held
Mailing address
PO BOX 370, MC LEAN, VA 22101-0370
Mailing matches property
Yes
Owner-occupied
Yes
Ownership since
2011
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
3 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Nov 4, 2020
—
Southgate Owner I LLC
—
Deed
related
$11,000,000 · Miscellaneous Ins Co
Jan 20, 2011
—
Southgate Owner I LLC
Southgate Center I LLC
Quit Claim Deed
related
—
—
—
Southgate Owner I LLC
—
Deed Of Trust
related
$11,000,000 · Miscellaneous Ins Co
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
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“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
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