New search
Property profile & analytics
OFF-MARKET
Estimated value
$660,000
Office buildings
3900 Sunrise Hwy, Seaford, NY 11783-2641
Entity Owned
1-yr Hold
~
Est. High Equity
Property ID
US63-0986821
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1961
Construction
MASONRY/CONCRETE MASONRY UNITS (CMUS)
Total area
2,560 SF
Lot
0.24 ac (10,526 SF)
APN
57-151-00-0170
UPID
US63-0986821
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
-
Sunrise Chiropractic Alternative Medicine Practice
-
Dame Cascone, Century 21 AA Realty Real Estate Agency
-
Anthony Guerriero, Century 21 AA Realty Real Estate Agency
-
Christina LeNoble, Century 21 AA Realty Real Estate Agency
-
Colin Sparks, Century 21 AA Realty Real Estate Agency
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
$720k
Comparable Approach
Comparable
by Request
Blend (final)
Blend
$660k
Owner & transaction history
3900 Assets LLC · 1 yrs held
3900 Assets LLC
since 2024
Last sale
$800,000
3 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
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 Seaford submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Seaford 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%
$785,000
6.5%
$720,000
7%
$670,000
Blend value · Realmo final
$660k
Range $594k – $726k · ±10% · vs last sale $800k (Sep 20 2024)
Last sale anchor
$800k
Sep 20 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
$258 / 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 2023Property tax & assessments
Tax year 2023
Tax billed
$31,405
Tax year 2023
Assessed value
$5,588
Assessed 2023
Previous assessed
$5,588
+0.0% YoY
Effective rate
562.01%
On assessed value
Assessed land
$2,434
Assessed improvement
$3,154
Total market value
$558,800
Applied tax rate
104.0000
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
OFFICE BUILDING
Status
Off-Market
Year built
1961
Construction
MASONRY/CONCRETE MASONRY UNITS (CMUS)
Heating
FORCED AIR
Cooling
CENTRAL
Stories
2
Total area
2,560 SF
Lot
0.24 ac (10,526 SF)
APN
57-151-00-0170
UPID
US63-0986821
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
Building & site characteristics
From public records
Year built
1961
Construction
MASONRY/CONCRETE MASONRY UNITS (CMUS)
Heating
FORCED AIR
Cooling
Yes
Stories
2
Lot
0.24 ac
Current owner
From public records · entity-resolved
3900 Assets LLC
Entity
Mailing address
3900 SUNRISE HWY, SEAFORD, NY 11783-2641
Mailing matches property
Yes
Owner-occupied
Yes
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
3 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
May 27, 2025
—
3900 Assets LLC
—
Deed
related
$480,000 · Wvb3900 Corporation
Dec 20, 2024
$800,000
3900 Assets LLC
Wvb 3900 Corp
Bargain & Sale Deed
$480,000 · Wvb3900 Corporation
May 7, 2004
—
Wvb 3900 Corp
Brennan,william V
Grant Deed
related
—
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.
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?”
You own 3900 Sunrise Hwy?
List it free. Reach 20,000 daily buyers.
We’ve already pulled the facts. Confirm photos + price and you’re live in 2 minutes.
List this address →
Full reports are paid
Unlock the full Property Analytics report
Start free for 7 days — no card required. Full owner contacts, all 4 valuations with methodology, refine flow, comparable adjustments, foot-traffic deep dive, export to PDF / CSV.
