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Property profile & analytics
OFF-MARKET
Estimated value
$2,000,000
Office buildings
643 Broadway, Massapequa, NY 11758-5032
Entity Owned
1-yr Hold
Absentee Owner
Free & Clear
Property ID
US63-3324829
Property profile
Verified
Property type
Office buildings
Use group
PROFESSIONAL BUILDING (MULTI-STORY)
Year built
2003
Total area
4,581 SF
Lot
0.41 ac (17,642 SF)
APN
52-229-00-2990
UPID
US63-3324829
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
$2.00M
CAP Approach
CAP
$1.30M
Comparable Approach
Comparable
$1.95M
Blend (final)
Blend
$2.00M
Owner & transaction history
Kn 643 Broadway Massapequa INC · 1 yrs held
Kn 643 Broadway Massapequa INC
since 2024
Last sale
$2.0M
2 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Auto repair, garage
$3.0M
+2.8%
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 Massapequa submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Massapequa 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
$2,000,000
ML approach
$2,000,000
CAP Approach
CAP Return
Estimation
6%
$1,400,000
6.5%
$1,295,000
7%
$1,200,000
Alternative Use
Use
Estimation
OFFICE BUILDING
$2,930,000
Current use
AUTO REPAIR, GARAGE
$3,010,000
Change: +3% · Conversion: Difficult
Blend value · Realmo final
$2.00M
Range $1.80M – $2.20M · ±10% · vs last sale $2.00M (Oct 3 2024)
Last sale anchor
$2.00M
Oct 3 2024
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
$437 / 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
$22,736
Tax year 2024
Assessed value
$7,197
Assessed 2024
Previous assessed
$7,197
+0.0% YoY
Effective rate
315.91%
On assessed value
Assessed land
$2,814
Assessed improvement
$4,383
Total market value
$719,700
Applied tax rate
564.0000
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
Office buildings
Use group
PROFESSIONAL BUILDING (MULTI-STORY)
Status
Off-Market
Year built
2003
Heating
FORCED AIR
Cooling
CENTRAL
Stories
1
Total area
4,581 SF
Lot
0.41 ac (17,642 SF)
APN
52-229-00-2990
UPID
US63-3324829
Jurisdiction
NASSAU
Metro division
NASSAU-SUFFOLK, NY METROPOLITAN DIVISION
Zoning & alternative use
Zoning · permitted uses
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
OFFICE BUILDING Current
Est. value
$2.9M
AUTO REPAIR, GARAGE
Est. value
$3.0M
OFFICE BUILDING Current
AUTO REPAIR, GARAGE
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
2003
Heating
FORCED AIR
Cooling
Yes
Stories
1
Lot
0.41 ac
Current owner
From public records · entity-resolved
Kn 643 Broadway Massapequa INC
Entity
Free & Clear · 1 yrs held
Mailing address
1231 E DEER PARK AVE, NORTH BABYLON, NY 11703-3104
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
2 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Oct 3, 2024
$2,000,000
Kn 643 Broadway Massapequa INC
643 Broadway Real Estate Group LLC
Bargain And Sale Deed
—
—
—
643 Broadway R & E Group LLC
—
Deed Of Trust
related
$618,397 · Bank Of America
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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