Entity Owned Property summary
AI-generated overview
Spanish Castle Apartments is a three-story multi-family residential building on a concrete slab foundation, with low-maintenance stucco exterior walls. The property is covered by a pitched tile and flat vinyl roof system that included a roof replacement in February 2026. Site features include carports, resident storage areas, a multi-unit complex laundry facility, and a pool and courtyard. Individual utility metering is provided with separate meters for gas and electricity. The unit mix includes multiple floor plan configurations totaling 30 units, featuring 2-bedroom/1-bath and 1-bedroom/1-bath layouts along with one 1-bedroom/1-bath townhome-style configuration; many of the unit interiors have been updated. The property is located in Walnut Creek in proximity to Downtown Walnut Creek amenities and BART, with access to Highways I-680 and 24 and nearby parks and open space.
Property profile
Verified
Property type
Other apartment buildings
Use group
APARTMENT HOUSE (5+ UNITS)
Year built
1965
Total area
26,696 SF
Lot
0.86 ac (37,462 SF)
Zoning code
M-29
APN
185-360-045-8
UPID
US09-0165787
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
-
Apartment Complex
-
Home Help Service Establishment
Location
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$4.48M
Owner & transaction history
since 2013
7 recorded transactions
Zoning & alternative use
M-29 · Walnut Creek, 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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Full NOI reconstruction, selected comps, alternative-use scenarios, data audit and PDF export.
All 12 comparables with addresses
Sensitivity value band
Source audit · 6 inputs
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Summary
1
Valuation conclusion
Included free
Estimated market value
$4.48M
Value range
$4.03M – $4.92M
±10% around blend
Estimated value / SF
$168 / SF
Confidence
High
12 county-verified comps
Property data
100
Market benchmarks
67
Comparable evidence
100
$4.03M
blend $4.48M
$4.92M
Market-derived valuation under stabilized market assumptions. Desktop analysis. No physical inspection performed.
2
Subject property
Included free
GBA
26,696 SF
Lot area
0.86 ac
Year built
1965
Stories
1
APN
185-360-045-8
Zoning
M-29
Assessed value
$6,434,125
Annual tax
$93,666
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
$8.72M
Weighted, 12 comps · high confidence
Evidence
12 found · 6 selected
County-verified recorded sales
Comparable
Sale dateSale price$ / SF
10.4 mi away · 20,742 SF
10.8 mi away · 20,185 SF
10.8 mi away · 22,542 SF
10.9 mi away · 21,166 SF
13.1 mi away · 22,300 SF
5
Sensitivity & risk
Partial preview
Downside
−10%
Base
$4.48M
Upside
+10%
Bounds of the ±10% band vs the blend — never simulated scenarios.
6
Current market position
Included free
Benchmark
Observed band ($/SF)AverageSubject delta
Submarket 39 sales
$453
-63%
County 343 sales
$273
-39%
Band = middle half (Q1–Q3) of recorded sale $/SF for this use type per geography; the diamond marks the subject at $168/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
County record
Operating expenses
Not available
Market rent
Not available
Not analyzed due to unavailable source data: actual rent roll, tenant leases, physical condition and capital
requirements are outside a desktop analysis.
Cost Approach excluded: replacement-cost inputs are not on file.
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.
Unlock the complete Cap Rate workflow
Full market tables, editable assumptions, comparable evidence, saved work and exports.
9-scenario matrix
Comparable evidence · 12 sales
Market rates by use type
PDF export
Professional Plan · 30 reports
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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$6.43M
Move the market yield to see immediate price impact.
Value / SF
$241
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%
$405k
$8.11M
$5.79M
$4.50M
$450k
$9.01M
$6.43M
$5.00M
$495k
$9.91M
$7.08M
$5.50M
NOI sensitivity ±10% across the 5 / 7 / 9% anchors — derivation of the NOI above.
Comparable evidence
Partial preview
Recorded sales nearby
12 found
High confidence · county-verified
Closest comparable
$10.28M
1.2 mi · Sep 2025 · $391/SF
Property tax & assessments
Tax year 2024Property tax & assessments
Tax year 2024
Tax billed
$93,666
Tax year 2024
Assessed value
$6,434,125
Assessed 2024
Previous assessed
$6,434,125
+0.0% YoY
Effective rate
1.46%
On assessed value
Assessed land
$1,913,212
Assessed improvement
$4,520,913
Applied tax rate
98.0000
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
Other apartment buildings
Use group
APARTMENT HOUSE (5+ UNITS)
Status
Off-Market
Year built
1965
Heating
NONE
Buildings
3
Stories
1
Units
33
Rooms
33
Total area
26,696 SF
Lot
0.86 ac (37,462 SF)
Zoning code
M-29
APN
185-360-045-8
UPID
US09-0165787
Jurisdiction
CONTRA COSTA
Metro division
OAKLAND-FREMONT-HAYWARD, CA METROPOLITAN DIVISION
Zoning & alternative use
M-29 · Walnut Creek, CAZoning M-29 · permitted uses
M-29 · Walnut Creek, CA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Building & site characteristics
From public records
Year built
1965
Heating
NONE
Stories
1
Buildings
3
Units
33
Rooms
33
Lot
0.86 ac
Zoning
The recorded zoning designation, what the district officially allows, and the municipal source it comes from.
Zoning designation
County-recorded code
M-29
Jurisdiction
Walnut Creek, CA
Recorded code
M-29
Zoning Insight
What can be built and operated here — officially.
The district profile from the municipal source: what is on file for M-29 in Walnut Creek, CA.
What opens after registration
Zoning profile
Official documentVerified municipal sources with file download
Match provenanceAssignment basis, match tier and confidence
Private report access
See the official zoning profile for this address.
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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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