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Property profile & analytics
OFF-MARKET
Estimated value
$745,000
Apartment buildings
2131 21st St Signal Hill, CA 90755-5922
Individually Owned
9-yr Hold
Absentee Owner
Free & Clear
Property ID
US09-7013930
Property profile
Verified
Property type
Apartment buildings
Use group
APARTMENT HOUSE (5+ UNITS)
Year built
1962
Construction
WOOD
Total area
4,891 SF
Lot
0.14 ac (6,160 SF)
Zoning code
SHR4*
APN
7215-019-007
UPID
US09-7013930
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
$982k
Blend (final)
Blend
$745k
Owner & transaction history
Ann Aldape · 9 yrs held
Ann Aldape
since 2017
5 recorded transactions
Zoning & alternative use
SHR4* · Signal Hill, CA
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 Signal Hill submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Signal Hill 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
COMMERCIAL (GENERAL)
$1,175,000
Change: -14% · Conversion: Moderate
WAREHOUSE, STORAGE
$1,125,000
Change: -17% · Conversion: Difficult
Blend value · Realmo final
$745k
Range $671k – $820k · ±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
$152 / 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
$10,117
Tax year 2024
Assessed value
$661,380
Assessed 2024
Previous assessed
$661,380
+0.0% YoY
Effective rate
1.53%
On assessed value
Assessed land
$175,135
Assessed improvement
$486,245
Applied tax rate
5.0000
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
Off-Market
Year built
1962
Construction
WOOD
Heating
FLOOR/WALL FURNACE
Cooling
YES
Buildings
2
Units
5
Bathrooms
7
Total area
4,891 SF
Lot
0.14 ac (6,160 SF)
Zoning code
SHR4*
APN
7215-019-007
UPID
US09-7013930
Jurisdiction
LOS ANGELES
Metro division
LOS ANGELES-LONG BEACH-GLENDALE, CA METROPOLITAN DIVISION
Zoning & alternative use
SHR4* · Signal Hill, CA
Zoning SHR4* · permitted uses
SHR4* · Signal Hill, CA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Signal Hill. Always verify with local authorities before improvements.
Alternative use value scenarios
Repositioning upside vs current use
COMMERCIAL (GENERAL)
Est. value
$1.2M
WAREHOUSE, STORAGE
Est. value
$1.1M
COMMERCIAL (GENERAL)
WAREHOUSE, STORAGE
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
1962
Construction
WOOD
Heating
FLOOR/WALL FURNACE
Cooling
Yes
Buildings
2
Units
5
Bathrooms
7
Lot
0.14 ac
Current owner
From public records · entity-resolved
Ann Aldape
Individual
Free & Clear · 9 yrs held
Mailing address
3826 MISTRAL DR, HUNTINGTON BEACH, CA 92649-2136
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2017
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
Jul 3, 2017
—
Ann Aldape
Aldape,hilario
Affidavit Of Death
related
—
Dec 5, 2006
—
Hilario Aldape
Aldape,nina E
Affidavit Of Death
related
—
Mar 31, 1999
$400,000
Hilario Aldape
—
Grant Deed
related
—
Jan 12, 1996
—
Papadakis George E
Papadakis,g E & C G
Quit Claim Deed
related
—
—
—
George Papadakis
—
Deed Of Trust
related
$50,000 · Queen City Bank
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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