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Property profile & analytics
FOR SALE
Office buildings
804 W Diamond Ave Gaithersburg, MD 20878
Entity Owned
8-yr Hold
~
Est. High Equity
Property ID
US40-2375534
For Sale
1 / 10
$5,900,000
804 W Diamond Ave, Gaithersburg, MD 20878
View Listing →
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1985
Construction
BRICK
Total area
28,281 SF
Lot
1.46 ac (63,473 SF)
Zoning code
C2
APN
09-02432840
UPID
US40-2375534
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
Current use
Occupant on record · Public records
-
Purepay (Bike/Boat/Book/etc) Store Corporate Office
-
Charles P Johnson & Associates Engineer
-
Record Nations Storage Facility
-
Junior Achievement Charitable Organization Social Service Agency
-
First Financial Intergroup Inc Financial Advisor
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$3.19M
Blend (final)
Blend
$3.98M
Owner & transaction history
Diamond 804 LLC · 8 yrs held
Diamond 804 LLC
since 2018
5 recorded transactions
Zoning & alternative use
C2 · Gaithersburg, MD
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 Gaithersburg submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Gaithersburg 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
Blend value · Realmo final
$3.98M
Range $3.58M – $4.37M · ±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
$141 / 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 2022Property tax & assessments
Tax year 2022
Tax billed
$45,897
Tax year 2022
Assessed value
$3,250,000
Assessed 2023
Previous assessed
$3,250,000
+0.0% YoY
Effective rate
1.41%
On assessed value
Assessed land
$1,103,700
Assessed improvement
$2,146,300
Land market value
$1,103,700
Improvement market value
$2,146,300
Total market value
$3,250,000
Applied tax rate
13.0000
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
For Sale
Year built
1985
Construction
BRICK
Heating
YES
Cooling
YES
Stories
3
Units
1
Total area
28,281 SF
Lot
1.46 ac (63,473 SF)
Zoning code
C2
APN
09-02432840
UPID
US40-2375534
Jurisdiction
MONTGOMERY
Metro division
BETHESDA-GAITHERSBURG-FREDERICK, MD METROPOLITAN DIVISION
Zoning & alternative use
C2 · Gaithersburg, MD
Zoning C2 · permitted uses
C2 · Gaithersburg, MD
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Gaithersburg. Always verify with local authorities before improvements.
Building & site characteristics
From public records
Year built
1985
Construction
BRICK
Heating
YES
Cooling
Yes
Stories
3
Units
1
Lot
1.46 ac
Current owner
From public records · entity-resolved
Diamond 804 LLC
Entity
Mailing address
PO BOX 10893, ROCKVILLE, MD 20849-0893
Mailing matches property
Yes
Owner-occupied
Yes
Ownership since
2018
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
Nov 22, 2021
—
Diamond 804 LLC
—
Deed
related
$950,000 · First Citizens Bank & Trust Co
Jun 15, 2018
$3,750,000
Diamond 804 LLC
804 Diamond Avenue LLC
Deed
$1,000,000 · Sun Trust Bank
Sep 30, 2003
$4,400,000
804 Diamond Avenue LLC
Diamond Plus LLC
Grant Deed
related
$3,740,000 · Manufacturers Traders & Trust
—
—
804 Diamond Avenue LLC
—
Deed Of Trust
related
$2,700,000 · Branch Bk&tr
—
—
804 Diamond Avenue LLC
—
Deed Of Trust
related
$540,666 · Manufacturers Traders & Trust
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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