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Property profile & analytics
FOR SALE
Retail residential properties
7823 5Th Ave Brooklyn, NY 11209
Entity Owned
6-yr Hold
~
Est. High Equity
Property ID
US63-3546991
For Sale
1 / 15
$4,399,999
7823 5Th Ave, Brooklyn, NY 11209
View Listing →
Property profile
Verified
Property type
Retail residential properties
Use group
STORES & APARTMENTS
Year built
1925
Total area
14,060 SF
Lot
0.08 ac (3,563 SF)
Zoning code
R6B
APN
05971-0001
UPID
US63-3546991
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
Current use
Occupant on record · Public records
-
Sherwin-Williams Paint Store Painting Home Improvement Store
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$4.72M
Owner & transaction history
509 79th Street Realty LLC · 6 yrs held
509 79th Street Realty LLC
since 2019
7 recorded transactions
Zoning & alternative use
R6B · Brooklyn, NY
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Office building
$7.7M
+14.6%
Warehouse, storage
$7.0M
+4.3%
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
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)
$6,755,000
Current use
OFFICE BUILDING
$7,740,000
Change: +15% · Conversion: Easy
WAREHOUSE, STORAGE
$7,045,000
Change: +4% · Conversion: Difficult
Blend value · Realmo final
$4.72M
Range $4.24M – $5.19M · ±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
$335 / 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
$133,165
Tax year 2024
Assessed value
$1,223,100
Assessed 2024
Previous assessed
$1,342,800
-8.9% YoY
Effective rate
10.89%
On assessed value
Assessed land
$136,350
Assessed improvement
$1,086,750
Land market value
$303,000
Improvement market value
$2,415,000
Total market value
$2,718,000
Applied tax rate
2.0000
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
Retail residential properties
Use group
STORES & APARTMENTS
Status
For Sale
Year built
1925
Heating
NONE
Buildings
1
Stories
4
Units
13
Total area
14,060 SF
Lot
0.08 ac (3,563 SF)
Zoning code
R6B
APN
05971-0001
UPID
US63-3546991
Jurisdiction
KINGS(BROOKLYN)
Metro division
NEW YORK-WHITE PLAINS-WAYNE, NY-NJ METROPOLITAN DIVISION
Zoning & alternative use
R6B · Brooklyn, NY
Zoning R6B · permitted uses
R6B · Brooklyn, NY
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Brooklyn. Always verify with local authorities before improvements.
Alternative use value scenarios
Repositioning upside vs current use
COMMERCIAL (GENERAL) Current
Est. value
$6.8M
OFFICE BUILDING
Est. value
$7.7M
WAREHOUSE, STORAGE
Est. value
$7.0M
COMMERCIAL (GENERAL) Current
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
1925
Heating
NONE
Stories
4
Buildings
1
Units
13
Lot
0.08 ac
Current owner
From public records · entity-resolved
509 79th Street Realty LLC
Entity
Mailing address
2678 BROWN ST APT #2, BROOKLYN, NY 11235-1674
Mailing matches property
Yes
Owner-occupied
Yes
Ownership since
2019
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
8 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Nov 1, 2019
$1,650,000
509 79th Street Realty LLC
Julia M Koniosis
Deed
$1,707,372 · Island FCU
Nov 1, 2019
—
Julia M Koniosis
509 79th Street Realty LLC
Grant Deed
$29,000,000 · Island FCU
Jan 12, 2018
—
509 79th Street Realty LLC
—
Loan Modification, Consolidation And Extension
related
$1,300,000 · Northfield Bk
Feb 3, 2014
—
509 79th Street Realty LLC
Koniosis,julia
Quit Claim Deed
—
Dec 10, 2004
$850,000
Julia Koniosis
Tsororos,nicholas
Grant Deed
$425,000 · Nicholas Tsororos
—
—
509 79th Street Realty LLC
—
Loan Modification
related
$29,000,000 · Island FCU
—
—
Julia Koniosis
—
Loan Modification
related
$800,000 · Northfield Bank Fsb
—
—
Peter Tsororos
—
Deed Of Trust
related
$257,146 · Independence Community 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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“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
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