For Sale
1 / 2
$599,000
664 51St St, Brooklyn, NY 11220
View Listing →
Estimated value (blended)
$315k
Range $284k – $347k (±10%)
Property ID
US63-2152861
Property profile
Verified
Property type
Investment properties
Use group
OFFICE/RESIDENTIAL (MIXED USE)
Year built
1905
Total area
5,430 SF
Lot
0.05 ac (2,003 SF)
Zoning code
R6B
APN
00801-0032
UPID
US63-2152861
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate 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
by Request
Blend (final)
Blend
$315k
Owner & transaction history
since 2023
3 recorded transactions
Zoning & alternative use
R6B · Brooklyn, NY
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 15 comparables with addresses
Sensitivity value band
Source audit · 10 inputs
PDF export
Analytics Standard · 5 reports
from $99/month
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Summary
1
Valuation conclusion
Included free
Estimated market value
$315k
Value range
$284k – $347k
±10% around blend
Estimated value / SF
$58 / SF
Confidence
High
15 county-verified comps
Property data
63
Market benchmarks
100
Comparable evidence
100
$284k
blend $315k
$347k
Market-derived valuation under stabilized market assumptions. Desktop analysis. No physical inspection performed.
2
Subject property
Included free
GBA
5,430 SF
Lot area
0.05 ac
Year built
1905
Stories
3
APN
00801-0032
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
$2.54M
Weighted, 15 comps · high confidence
Evidence
15 found · 6 selected
County-verified recorded sales
Comparable
Sale dateSale price$ / SF
1.0 mi away · 4,320 SF
1.0 mi away · 5,580 SF
1.1 mi away · 5,400 SF
1.4 mi away · 3,866 SF
1.7 mi away · 4,480 SF
5
Sensitivity & risk
Partial preview
Downside
−10%
Base
$315k
Upside
+10%
Bounds of the ±10% band vs the blend — never simulated scenarios.
6
Current market position
Included free
Benchmark
Observed band ($/SF)AverageSubject delta
ZIP 122 sales
$477
-88%
Submarket 3044 sales
$491
-88%
County 3044 sales
$491
-88%
Band = middle half (Q1–Q3) of recorded sale $/SF for this use type per geography; the diamond marks the subject at $58/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
Not available
Assessed value
Not available
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 · 15 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$315k
Move the market yield to see immediate price impact.
Value / SF
$58
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%
$20k
$397k
$284k
$221k
$22k
$441k
$315k
$245k
$24k
$485k
$346k
$270k
NOI sensitivity ±10% across the 5 / 7 / 9% anchors — derivation of the NOI above.
Comparable evidence
Partial preview
Recorded sales nearby
15 found
High confidence · county-verified
Closest comparable
$2.38M
0.6 mi · Dec 2025 · $346/SF
Property tax & assessments
Tax year 2024Property tax & assessments
Tax year 2024
Previous assessed
$294,300
Applied tax rate
2.0000
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
Investment properties
Use group
OFFICE/RESIDENTIAL (MIXED USE)
Status
For Sale
Year built
1905
Heating
NONE
Buildings
1
Stories
3
Units
7
Total area
5,430 SF
Lot
0.05 ac (2,003 SF)
Zoning code
R6B
APN
00801-0032
UPID
US63-2152861
Jurisdiction
KINGS(BROOKLYN)
Metro division
NEW YORK-WHITE PLAINS-WAYNE, NY-NJ METROPOLITAN DIVISION
Zoning & alternative use
R6B · Brooklyn, NYZoning R6B · permitted uses
R6B · Brooklyn, NY
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Alternative use value scenarios
Repositioning upside vs current use
Alternative use deep dive — conversion cost, permits, timeline
Conversion cost estimate · Permit path & risks · Stabilized NOI per option
Building & site characteristics
From public records
Year built
1905
Heating
NONE
Stories
3
Buildings
1
Units
7
Lot
0.05 ac
Zoning
The recorded zoning designation, what the district officially allows, and the municipal source it comes from.
Zoning designation
County-recorded code
R6B
Jurisdiction
Brooklyn, NY
Recorded code
R6B
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.
One complete report on every paid plan · 5 · 30 · 100 reports per month.
Owner of record and activity signals are derived from public records and modeled classifications.
They do not confirm beneficial ownership or intent to transact.
Try Rey
Ask anything about this address in plain English.
“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
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