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Property profile & analytics
OFF-MARKET
Estimated value
$580,000
Office Spaces
131 Elden St Ste 101 Herndon, VA 20170-4835
Entity Owned
2-yr Hold
Absentee Owner
~
Est. High Equity
Property ID
US87-0374025
Property profile
Verified
Property type
Office Spaces
Use group
CONDOMINIUM OFFICES
Total area
1,470 SF
Zoning code
O&L I(OFFICE &LIGHT INDUS
APN
017-1-29-01-0101
UPID
US87-0374025
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
$580k
CAP Approach
CAP
$455k
Comparable Approach
Comparable
$350k
Blend (final)
Blend
$580k
Owner & transaction history
J & Y Properties LLC · 2 yrs held
J & Y Properties LLC
since 2024
Last sale
$579,000
4 recorded transactions
Zoning & alternative use
O&L I(OFFICE &LIGHT INDUS · Herndon, VA
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Commercial (general)
$670,000
+62.0%
Neighborhood: shopping center
$540,000
+31.5%
Auto repair, garage
$490,000
+19.1%
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 Herndon submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Herndon 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
$580,000
ML approach
$580,000
CAP Approach
CAP Return
Estimation
6%
$495,000
6.5%
$455,000
7%
$425,000
Alternative Use
Use
Estimation
OFFICE BUILDING
$410,000
Current use
COMMERCIAL (GENERAL)
$670,000
Change: +62% · Conversion: Easy
NEIGHBORHOOD: SHOPPING CENTER
$540,000
Change: +32% · Conversion: Difficult
AUTO REPAIR, GARAGE
$490,000
Change: +19% · Conversion: Difficult
WAREHOUSE, STORAGE
$430,000
Change: +5% · Conversion: Difficult
Blend value · Realmo final
$580k
Range $522k – $638k · ±10% · vs last sale $579k (May 31 2024)
Last sale anchor
$579k
May 31 2024
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
$395 / 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
$4,765
Tax year 2024
Assessed value
$308,700
Assessed 2024
Previous assessed
$330,750
-6.7% YoY
Effective rate
1.54%
On assessed value
Assessed land
$61,740
Assessed improvement
$246,960
Land market value
$61,740
Improvement market value
$246,960
Total market value
$308,700
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 Spaces
Use group
CONDOMINIUM OFFICES
Status
Off-Market
Heating
NONE
Total area
1,470 SF
Zoning code
O&L I(OFFICE &LIGHT INDUS
APN
017-1-29-01-0101
UPID
US87-0374025
Jurisdiction
FAIRFAX
Metro division
WASHINGTON-ARLINGTON-ALEXANDRIA, DC-VA-MD-WV METROPOLITAN DIVISION
Zoning & alternative use
O&L I(OFFICE &LIGHT INDUS · Herndon, VA
Zoning O&L I(OFFICE &LIGHT INDUS · permitted uses
O&L I(OFFICE &LIGHT INDUS · Herndon, VA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Herndon. Always verify with local authorities before improvements.
Alternative use value scenarios
Repositioning upside vs current use
OFFICE BUILDING Current
Est. value
$410,000
COMMERCIAL (GENERAL)
Est. value
$670,000
NEIGHBORHOOD: SHOPPING CENTER
Est. value
$540,000
AUTO REPAIR, GARAGE
Est. value
$490,000
WAREHOUSE, STORAGE
Est. value
$430,000
OFFICE BUILDING Current
COMMERCIAL (GENERAL)
NEIGHBORHOOD: SHOPPING CENTER
AUTO REPAIR, GARAGE
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
Heating
NONE
Current owner
From public records · entity-resolved
J & Y Properties LLC
Entity
Mailing address
2724 BERRYLAND DR, OAKTON, VA 22124-1403
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2024
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
4 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
May 31, 2024
$579,000
J & Y Properties LLC
A2r Properties LLC
Deed
$463,200 · Pnc Bank NA
Apr 16, 2010
$450,000
A2r Properties LLC
Tcw LLC
Grant Deed
$443,200 · Suntrust Bank NA
Oct 15, 2004
$308,580
Tcw LLC
Owner Name Unavailable
Grant Deed
related
—
—
—
A2r Properties LLC
—
Deed Of Trust
related
$384,000 · Capital One
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.
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