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Property profile & analytics
OFF-MARKET
Estimated value
$800,000
Office buildings
501 Blackburn Dr Martinez, GA 30907-8201
Entity Owned
6-yr Hold
~
Est. High Equity
Property ID
US22-1050741
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1999
Construction
BRICK
Total area
5,850 SF
Lot
0.51 ac (22,216 SF)
Zoning code
P-1
APN
082 079H
UPID
US22-1050741
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
$960k
Blend (final)
Blend
$800k
Owner & transaction history
Gambach Investment LLC · 6 yrs held
Gambach Investment LLC
since 2019
1 recorded transaction
Zoning & alternative use
P-1 · Martinez, GA
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Retail stores
$1.3M
+2.3%
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 Martinez submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Martinez 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
$1,260,000
Current use
RETAIL STORES
$1,290,000
Change: +2% · Conversion: Moderate
NEIGHBORHOOD: SHOPPING CENTER
$1,140,000
Change: -10% · Conversion: Difficult
Blend value · Realmo final
$800k
Range $720k – $880k · ±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
$137 / 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
$6,739
Tax year 2024
Assessed value
$269,856
Assessed 2024
Previous assessed
$269,856
+0.0% YoY
Effective rate
2.50%
On assessed value
Assessed land
$64,804
Assessed improvement
$205,052
Land market value
$162,010
Improvement market value
$512,630
Total market value
$674,640
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
1999
Construction
BRICK
Heating
NONE
Buildings
1
Stories
2
Rooms
31
Bathrooms
6
Total area
5,850 SF
Lot
0.51 ac (22,216 SF)
Zoning code
P-1
APN
082 079H
UPID
US22-1050741
Jurisdiction
COLUMBIA
Zoning & alternative use
P-1 · Martinez, GA
Zoning P-1 · permitted uses
P-1 · Martinez, GA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Martinez. Always verify with local authorities before improvements.
Alternative use value scenarios
Repositioning upside vs current use
OFFICE BUILDING Current
Est. value
$1.3M
RETAIL STORES
Est. value
$1.3M
NEIGHBORHOOD: SHOPPING CENTER
Est. value
$1.1M
OFFICE BUILDING Current
RETAIL STORES
NEIGHBORHOOD: SHOPPING CENTER
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
1999
Construction
BRICK
Heating
NONE
Stories
2
Buildings
1
Rooms
31
Bathrooms
6
Lot
0.51 ac
Current owner
From public records · entity-resolved
Gambach Investment LLC
Entity
Mailing address
PO BOX 204830, AUGUSTA, GA 30917-4830
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
1 recorded event · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Aug 29, 2019
$750,000
Gambach Investment LLC
Patterson,ronald V
Warranty Deed
$750,000 · Synovus Bk
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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