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Property profile & analytics
OFF-MARKET
Estimated value
$6,155,000
Office buildings
4125 Alexander Dr Alpharetta, GA 30022
Entity Owned
1-yr Hold
~
Est. High Equity
Property ID
US22-1682851
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING (MULTI-STORY)
Year built
2005
Total area
37,348 SF
Lot
8.04 ac (350,222 SF)
Zoning code
CUP
APN
11 025000900112
UPID
US22-1682851
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
$8.21M
Comparable Approach
Comparable
$4.57M
Blend (final)
Blend
$6.16M
Owner & transaction history
Gbmb Hq Real Property LLC · 1 yrs held
Gbmb Hq Real Property LLC
since 2025
Last sale
$7.3M
7 recorded transactions
Zoning & alternative use
CUP · Alpharetta, GA
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 Alpharetta submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Alpharetta 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%
$8,890,000
6.5%
$8,205,000
7%
$7,620,000
Alternative Use
Use
Estimation
OFFICE BUILDING
$6,345,000
Current use
Blend value · Realmo final
$6.16M
Range $5.54M – $6.77M · ±10% · vs last sale $7.25M (Oct 24 2024)
Last sale anchor
$7.25M
Oct 24 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
$165 / 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 2023Property tax & assessments
Tax year 2023
Tax billed
$42,922
Tax year 2023
Assessed value
$1,520,640
Assessed 2023
Previous assessed
$1,520,640
+0.0% YoY
Effective rate
2.82%
On assessed value
Assessed land
$899,480
Assessed improvement
$621,160
Land market value
$2,248,700
Improvement market value
$1,552,900
Total market value
$3,801,600
Applied tax rate
10.0000
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 (MULTI-STORY)
Status
Off-Market
Year built
2005
Heating
NONE
Stories
1
Total area
37,348 SF
Lot
8.04 ac (350,222 SF)
Zoning code
CUP
APN
11 025000900112
UPID
US22-1682851
Jurisdiction
FULTON
Zoning & alternative use
CUP · Alpharetta, GA
Zoning CUP · permitted uses
CUP · Alpharetta, GA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Alpharetta. Always verify with local authorities before improvements.
Alternative use value scenarios
Repositioning upside vs current use
OFFICE BUILDING Current
Est. value
$6.3M
OFFICE BUILDING Current
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
2005
Heating
NONE
Stories
1
Lot
8.04 ac
Current owner
From public records · entity-resolved
Gbmb Hq Real Property LLC
Entity
Mailing address
4125 OLD MILTON PKWY, ALPHARETTA, GA 30005-4443
Mailing matches property
Yes
Owner-occupied
Yes
Ownership since
2025
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
11 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jan 24, 2025
$7,250,000
Gbmb Hq Real Property LLC
Old Milton Properties LLC
Warranty Deed
—
Jan 24, 2025
—
Gbmb Hq Real Property LLC
Old Milton Properties LLC
Quitclaim Deed
related
—
Aug 24, 2023
—
Old Milton Properties LLC
—
Deed
related
$4,500,000 · Truist Bank
Sep 27, 2021
—
Old Milton Properties LLC
—
Deed
related
$4,500,000 · Truist Bank
Jul 24, 2017
—
Old Milton Properties LLC
—
Deed
related
$2,000,000 · Branch Bk&tr
May 4, 2015
—
Old Milton Properties LLC
Old Alabama Investments LLC
Quit Claim Deed
related
—
Dec 22, 2011
$3,875,000
Old Alabama Investments LLC
Km Building LLC
Grant Deed
$2,900,000 · Branch Banking & Trust Co
Aug 12, 2004
$489,100
C Croker Properties INC
Old Milton LLC
Grant Deed
—
Aug 12, 2004
$484,100
Hollan Co INC
Old Milton LLC
Grant Deed
—
—
—
Mdc Building Two LLC
—
Deed Of Trust
related
$5,750,000 · Countrywide Com'l R/e Fin
—
—
Old Milton Properties LLC
—
Deed Of Trust
related
$2,000,000 · Branch Bk&tr
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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