640 C St San Diego, CA 92101-5306
Entity Owned
3-yr Hold
~
Est. High Equity
Estimated value (blended)
$3.79M
Range $3.41M – $4.16M (±10%)
Property ID
US09-6636869
Property summary
AI-generated overview
This stunning four-story, 20,000 square foot retail property, located at 640 C Street in San Diego, California's vibrant downtown financial district, presents a rare investment opportunity. Built in 1928 by renowned architect Frank Phillip Allen, the Hamilton Building boasts an exquisite Art Deco/Moderne design with an original stone and marble exterior. Recently undergoing extensive renovations, this multi-tenant property features a new roof, elevator, stairwells, fire sprinklers, HVAC system, glass windows, restrooms, updated electrical and plumbing, and a complete seismic retrofit. The building sits on a 5,254 square foot lot and is zoned CCPD-CORE. Its prime location offers exceptional visibility and accessibility, within walking distance of the Gaslamp Quarter and Petco Park, providing excellent signage opportunities. This owner/user investment is ideal for a variety of uses, including restaurants, clubs, retail establishments, or creative office spaces. The asking price is $9,250,000.
Property profile
Verified
Property type
Retail space
Use group
RETAIL STORES (PERSONAL SERVICES)
Year built
1928
Total area
16,960 SF
Lot
0.12 ac (5,254 SF)
Zoning code
COMMERCIAL
APN
534-181-07-00
UPID
US09-6636869
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors
Current use
Occupant on record · Public records
-
Law Firm
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$3.79M
Owner & transaction history
since 2022
7 recorded transactions
Zoning & alternative use
COMMERCIAL · San Diego, CA
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
Value estimation
Instant AI valuation built from comps, income signals, and proprietary benchmarks. A defensible range, not a single guess.
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Unlock the complete Valuation workflow
Full NOI reconstruction, selected comps, alternative-use scenarios, data audit and PDF export.
All 6 comparables with addresses
Sensitivity value band
Source audit · 10 inputs
PDF export
Analytics Standard · 5 reports
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Summary
1
Valuation conclusion
Included free
Estimated market value
$3.79M
Value range
$3.41M – $4.16M
±10% around blend
Estimated value / SF
$223 / SF
Confidence
High
6 county-verified comps
Property data
75
Market benchmarks
100
Comparable evidence
60
$3.41M
blend $3.79M
$4.16M
Market-derived valuation under stabilized market assumptions. Desktop analysis. No physical inspection performed.
2
Subject property
Included free
GBA
16,960 SF
Lot area
0.12 ac
Year built
1928
APN
534-181-07-00
Assessed value
$1,761,589
Annual tax
$25,138
3
Income approach: direct capitalization
Partial preview
Not enough income data on file for a CAP-approach estimation.
4
Sales comparison
Partial preview
Sales approach indication
$2.17M
Weighted, 6 comps · high confidence
Evidence
6 found · 6 selected
County-verified recorded sales
Comparable
Sale dateSale price$ / SF
3.6 mi away · 14,672 SF
3.6 mi away · 14,672 SF
3.6 mi away · 14,672 SF
3.6 mi away · 14,672 SF
8.6 mi away · 19,931 SF
5
Sensitivity & risk
Partial preview
Downside
−10%
Base
$3.79M
Upside
+10%
Bounds of the ±10% band vs the blend — never simulated scenarios.
6
Current market position
Included free
Benchmark
Observed band ($/SF)AverageSubject delta
ZIP 96 sales
$629
-65%
Submarket 855 sales
$481
-54%
County 2035 sales
$420
-47%
Band = middle half (Q1–Q3) of recorded sale $/SF for this use type per geography; the diamond marks the subject at $223/SF. Delta below average reads as headroom. Source: Realmo CRE sales derivatives (county records).
7
Data & methodology
Included free
Building area
County record
Property tax
County record
Assessed value
County record
Zoning designation
Not available
Operating expenses
Not available
Market rent
Not available
Actual rent roll
Not available
Tenant leases
Not available
Physical condition
Not inspected
Conversion costs
Not available
Not analyzed due to unavailable source data: tenant leases, physical condition and capital
requirements were not available for this desktop analysis. Cost Approach excluded due to
availability of income evidence.
Automated valuation analysis, not a licensed appraisal. Figures are derived from public
records and proprietary models. Desktop analysis: no physical inspection, tenant leases or reported
property income. Verify with a licensed appraiser before transacting.
Cap rate
Cap rate calculated from real income and expense signals, benchmarked against sales of similar assets nearby.
17% off on annual
Unlock the complete Cap Rate workflow
Full market tables, editable assumptions, comparable evidence, saved work and exports.
9-scenario matrix
Comparable evidence · 6 sales
Market rates by use type
PDF export
Analytics Standard · 5 reports
from $99/month
from $99/month
Overview
No cap rate is computable for this property yet: no recorded sale, income signal or market-rate row for its use type.
Price sensitivity
The rate is the decision lever; valuation is the consequence.
Test a cap rate
Implied value$1.76M
Move the market yield to see immediate price impact.
Value / SF
$104
Vs. selected
Base
Derivation
NOI ÷ cap
Arithmetic over the derived NOI * — not market scenario modeling.
NOI × cap matrix
Preview
Preview of 9 modeled outcomes.
NOI
5.00%7.00%9.00%
$111k
$2.22M
$1.59M
$1.23M
$123k
$2.47M
$1.76M
$1.37M
$136k
$2.71M
$1.94M
$1.51M
NOI sensitivity ±10% across the 5 / 7 / 9% anchors — derivation of the NOI above.
Comparable evidence
Partial preview
Recorded sales nearby
6 found
High confidence · county-verified
Closest comparable
$1.00M
0.2 mi · Feb 2026 · $57/SF
Property tax & assessments
Tax year 2024Property tax & assessments
Tax year 2024
Tax billed
$25,138
Tax year 2024
Assessed value
$1,761,589
Assessed 2024
Previous assessed
$1,761,589
+0.0% YoY
Effective rate
1.43%
On assessed value
Assessed land
$854,108
Assessed improvement
$907,481
Applied tax rate
8.0000
Automated cap rate analysis. Based on public records, market benchmarks and proprietary
models. Verify with a licensed professional before transacting.
Property description
Physical attributes from public recordsBuilding & lot
Public records
Property type
Retail space
Use group
RETAIL STORES (PERSONAL SERVICES)
Status
Off-Market
Year built
1928
Heating
NONE
Units
1
Total area
16,960 SF
Lot
0.12 ac (5,254 SF)
Zoning code
COMMERCIAL
APN
534-181-07-00
UPID
US09-6636869
Jurisdiction
SAN DIEGO
Zoning & alternative use
COMMERCIAL · San Diego, CAZoning COMMERCIAL · permitted uses
COMMERCIAL · San Diego, CA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Building & site characteristics
From public records
Year built
1928
Heating
NONE
Units
1
Lot
0.12 ac
Zoning
The recorded zoning designation, what the district officially allows, and the municipal source it comes from.
Zoning designation
County-recorded code
COMMERCIAL
Jurisdiction
San Diego, CA
Recorded code
COMMERCIAL
Zoning Insight
What can be built and operated here — officially.
The district profile from the municipal source: what is on file for COMMERCIAL in San Diego, CA.
What opens after registration
Zoning profile
3 official documentsVerified municipal sources with file download
Match provenanceAssignment basis, match tier and confidence
Private report access
See the official zoning profile for this address.
Registration is required before the official district profile is shown.
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Ownership Intelligence
Find the owner behind the property.
Unlock the evidence behind ownership: portfolio, transactions, debt and signals that help you decide who to contact next.
What opens after registration
Ownership report
Owner identityResolved entity and name variants
Portfolio holdingsLinked properties and estimated value
Deal signalsSell-side activity worth following
Debt & historyRecorded loans and transaction history
Private report access
See the ownership record for this address.
Registration is required before any owner information is shown.
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Owner of record and activity signals are derived from public records and modeled classifications.
They do not confirm beneficial ownership or intent to transact.
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