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Property profile & analytics
FOR SALE
Apartment buildings
2523 Mason St Oakland, CA 94605
Entity Owned
~
Est. High Equity
Property ID
US09-8623892
For Sale
1 / 52
$799,000
2523 Mason St, Oakland, CA 94605
View Listing →
Property profile
Verified
Property type
Apartment buildings
Use group
APARTMENT HOUSE (5+ UNITS)
Year built
1958
Construction
WOOD
Total area
3,720 SF
Lot
0.13 ac (5,675 SF)
APN
38-3177-64-1
UPID
US09-8623892
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
$620k
Blend (final)
Blend
$520k
Owner & transaction history
Zelavie LLC
Zelavie LLC
since 2025
7 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Commercial (general)
$735,000
+12.3%
Warehouse, storage
$710,000
+8.0%
Auto repair, garage
$700,000
+6.6%
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 Oakland submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Oakland 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
APARTMENT HOUSE (5+ UNITS)
$655,000
Current use
COMMERCIAL (GENERAL)
$735,000
Change: +12% · Conversion: Moderate
WAREHOUSE, STORAGE
$710,000
Change: +8% · Conversion: Difficult
AUTO REPAIR, GARAGE
$700,000
Change: +7% · Conversion: Difficult
Blend value · Realmo final
$520k
Range $468k – $572k · ±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
$140 / 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
$13,673
Tax year 2023
Assessed value
$621,319
Assessed 2024
Previous assessed
$609,139
+2.0% YoY
Effective rate
2.20%
On assessed value
Assessed land
$156,231
Assessed improvement
$465,088
Applied tax rate
17.0000
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
Apartment buildings
Use group
APARTMENT HOUSE (5+ UNITS)
Status
For Sale
Year built
1958
Construction
WOOD
Heating
NONE
Buildings
1
Stories
2
Units
6
Rooms
25
Bathrooms
6
Total area
3,720 SF
Lot
0.13 ac (5,675 SF)
APN
38-3177-64-1
UPID
US09-8623892
Jurisdiction
ALAMEDA
Metro division
OAKLAND-FREMONT-HAYWARD, CA METROPOLITAN DIVISION
Zoning & alternative use
Zoning · permitted uses
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Alternative use value scenarios
Repositioning upside vs current use
APARTMENT HOUSE (5+ UNITS) Current
Est. value
$655,000
COMMERCIAL (GENERAL)
Est. value
$735,000
WAREHOUSE, STORAGE
Est. value
$710,000
AUTO REPAIR, GARAGE
Est. value
$700,000
APARTMENT HOUSE (5+ UNITS) Current
COMMERCIAL (GENERAL)
WAREHOUSE, STORAGE
AUTO REPAIR, GARAGE
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
1958
Construction
WOOD
Heating
NONE
Stories
2
Buildings
1
Units
6
Rooms
25
Bathrooms
6
Lot
0.13 ac
Current owner
From public records · entity-resolved
Zelavie LLC
Entity
Mailing address
452 HAZELWOOD AVE, SAN FRANCISCO, CA 94127-2137
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
Oct 31, 2025
$755,000
Zelavie LLC
Jeffrey A Nigh
Grant Deed
$566,250 · A&d Mortgage LLC
Jul 8, 2014
—
Nigh,jeffrey A Living Trust
Nigh,jeffrey A
Quit Claim Deed
related
—
Jun 20, 2014
$520,000
Jeffrey A Nigh
Sean P Cunningham
Grant Deed
$350,000 · Bofi Federal Bank
Jan 25, 2008
—
Sean P Cunningham
Sean P Cunningham
Intrafamily Transfer
related
$310,000 · Washington Mutual Bank
Nov 28, 2007
—
Cunningham K E 2004 Trust
Cunningham,kathryn E
Quit Claim Deed
related
—
Aug 23, 2000
$325,000
Kathryn E Cunningham
Smith,david L
Grant Deed
$198,500 · United Labor Bank
Sep 23, 1999
$230,000
David L Smith
Lewis,clyde H & Ruthie D
Grant Deed
$161,000 · Tamalpais Bank
Sep 30, 1994
$29,000
Clyde H Lewis
Oh,chi-hwan
Grant Deed
related
—
Apr 2, 1990
$65,000
Chi-hwan Oh
Lewis,c.&r./ingr
Grant Deed
related
—
—
—
Lewis C H
—
Deed Of Trust
related
$180,000 · Bay View Federal Bank
—
—
Kathryn E Cunningham
—
Deed Of Trust
related
$278,500 · Washington Mutual Fsb
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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