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Property profile & analytics
OFF-MARKET
Estimated value
$245,000
Office buildings
21873 Martin Dr Porter, TX 77365-5325
Entity Owned
7-yr Hold
Property ID
US83-2395995
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
2019
Total area
1,200 SF
Lot
1.73 ac (75,446 SF)
Zoning code
5
APN
9260-01-02300
UPID
US83-2395995
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
-
Nature's Outlook Landscaping General Contractor
-
Elite Scales & Systems LLC Factory Industrial Manufacturer
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$245k
Owner & transaction history
Castaneda Realty Group LLC · 7 yrs held
Castaneda Realty Group LLC
since 2019
6 recorded transactions
Zoning & alternative use
5 · Porter, TX
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 Porter submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Porter 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
$245k
Range $221k – $270k · ±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
$204 / 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
$23,934
Tax year 2024
Assessed value
$1,100,000
Assessed 2024
Previous assessed
$1,041,560
+5.6% YoY
Effective rate
2.18%
On assessed value
Assessed land
$71,278
Assessed improvement
$1,028,722
Land market value
$71,278
Improvement market value
$1,028,722
Total market value
$1,100,000
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
2019
Heating
FORCED AIR
Cooling
CENTRAL
Buildings
2
Stories
1
Bathrooms
1
Total area
1,200 SF
Lot
1.73 ac (75,446 SF)
Zoning code
5
APN
9260-01-02300
UPID
US83-2395995
Jurisdiction
MONTGOMERY
Zoning & alternative use
5 · Porter, TXZoning 5 · permitted uses
5 · Porter, TX
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Building & site characteristics
From public records
Year built
2019
Heating
FORCED AIR
Cooling
Yes
Stories
1
Buildings
2
Bathrooms
1
Lot
1.73 ac
Current owner
From public records · entity-resolved
Castaneda Realty Group LLC
Entity
Mailing address
PO BOX 3396, HUMBLE, TX 77347-3396
Ownership since
2019
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
6 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Aug 23, 2019
—
Castaneda Realty Group LLC
—
Trustees Deed
related
$246,923 · Bancorpsouth
Apr 16, 2019
—
Castaneda Realty Group LLC
Eagle Park Investments LLC
Warranty Deed
—
Mar 7, 2017
—
Eagle Park Investments LLC
Click,donald W & Debra
Grant Deed
related
—
Jan 22, 2010
—
Donald W Click
Mann,donald R
Warranty Deed
—
Jan 8, 2010
—
Donald W Click
Mann,donald R
Warranty Deed
—
Jul 3, 2007
—
Donald R Mann
Lucas,james W & Melrose H
Warranty Deed
$87,500 · James W & Melrose H Lucas
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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