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Property profile & analytics
OFF-MARKET
Estimated value
$6,880,000
Apartment buildings
257 Prospect Ave Brooklyn, NY 11215-5417
Entity Owned
1-yr Hold
Absentee Owner
Property ID
US63-1214399
Property profile
Verified
Property type
Apartment buildings
Use group
APARTMENT HOUSE (5+ UNITS)
Year built
1901
Total area
10,000 SF
Lot
0.28 ac (12,238 SF)
Zoning code
R6B
APN
01053-0086
UPID
US63-1214399
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
$7.34M
CAP Approach
CAP
$4.70M
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$6.88M
Owner & transaction history
Gowanus Cubes, LLC · 1 yrs held
Gowanus Cubes, LLC
since 2024
Last sale
$7.5M
5 recorded transactions
Zoning & alternative use
R6B · Brooklyn, NY
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Auto repair, garage
$7.9M
+74.1%
Retail stores
$7.7M
+68.7%
Commercial (general)
$6.9M
+50.2%
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 Brooklyn submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Brooklyn 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
$6,880,000
ML approach
$7,335,000
CAP Approach
CAP Return
Estimation
6%
$5,090,000
6.5%
$4,695,000
7%
$4,360,000
Alternative Use
Use
Estimation
APARTMENT HOUSE (5+ UNITS)
$4,565,000
Current use
AUTO REPAIR, GARAGE
$7,945,000
Change: +74% · Conversion: Difficult
RETAIL STORES
$7,700,000
Change: +69% · Conversion: Difficult
COMMERCIAL (GENERAL)
$6,855,000
Change: +50% · Conversion: Moderate
INDUSTRIAL (GENERAL)
$5,675,000
Change: +24% · Conversion: Difficult
OFFICE BUILDING
$5,505,000
Change: +21% · Conversion: Moderate
WAREHOUSE, STORAGE
$5,010,000
Change: +10% · Conversion: Difficult
Blend value · Realmo final
$6.88M
Range $6.19M – $7.57M · ±10% · vs last sale $7.50M (Jul 13 2021)
Last sale anchor
$7.50M
Jul 13 2021
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
$688 / 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
$26,271
Tax year 2024
Assessed value
$130,800
Assessed 2024
Previous assessed
$130,800
+0.0% YoY
Effective rate
20.08%
On assessed value
Assessed land
$130,800
Land market value
$2,180,000
Total market value
$2,180,000
Applied tax rate
4.0000
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
1901
Heating
NONE
Stories
3
Total area
10,000 SF
Lot
0.28 ac (12,238 SF)
Zoning code
R6B
APN
01053-0086
UPID
US63-1214399
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
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Alternative use value scenarios
Repositioning upside vs current use
APARTMENT HOUSE (5+ UNITS) Current
Est. value
$4.6M
AUTO REPAIR, GARAGE
Est. value
$7.9M
RETAIL STORES
Est. value
$7.7M
COMMERCIAL (GENERAL)
Est. value
$6.9M
INDUSTRIAL (GENERAL)
Est. value
$5.7M
OFFICE BUILDING
Est. value
$5.5M
WAREHOUSE, STORAGE
Est. value
$5.0M
APARTMENT HOUSE (5+ UNITS) Current
AUTO REPAIR, GARAGE
RETAIL STORES
COMMERCIAL (GENERAL)
INDUSTRIAL (GENERAL)
OFFICE BUILDING
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
1901
Heating
NONE
Stories
3
Lot
0.28 ac
Current owner
From public records · entity-resolved
Gowanus Cubes, LLC
Entity
Mailing address
263 PROSPECT AVE, BROOKLYN, NY 11215-5417
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2024
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
Oct 3, 2024
—
Gowanus Cubes, LLC
Gowanus Cubes, LLC
Correction Deed
related
—
Mar 1, 2024
—
Gowanus Cubes, LLC
Gowanus Cubes, LLC
Correction Deed
related
—
Sep 7, 2023
—
Cos Management & Realty, INC.
—
Deed
related
$30,000,000 · 263 Prospect Ave Funding LLC
Jul 13, 2021
$7,500,000
Gowanus Cubes, LLC
Meh Services INC.
Deed
—
Mar 17, 2015
—
Meh Services INC
Prospect Avenue Holdings INC
Grant Deed
—
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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