by RH Advisors
For Sale
For Rent
Blog
Property Records
Schools
SEARCH
Property Records
For Sale
For Rent
MORE
Blog
Schools
See Home Value
Mastic Beach 11951 Mastic Beach
40 Alder Drive
Photo of 40 Alder Drive
Sold on Oct 7, 2026

31

Map

Photo of 40 Alder Drive
Photo of 40 Alder Drive
$610,000
● House - Off Market

40 Alder Drive

Brookhaven, NY 11951
bedrooms
4 Beds
bathrooms
2 Baths
square feet
1,800 Ft²
$3,744
Est. Monthly

About This Property

Welcome to this fully renovated 4 bedroom, 2 full bathroom Raised Ranch located at 40 Alder Drive in Mastic Beach. Situated on a spacious quarter acre lot, this move-in ready home offers modern updates, a functional layout, and comfortable living throughout. The main level features a bright and inviting living area with abundant natural light, updated flooring, and a seamless flow into the dining space and renovated open concept kitchen with contemporary finishes. The home offers four well-sized bedrooms and two fully updated bathrooms, providing flexibility for extended family, guests, or a home office. The lower level offers additional living space with access to the attached garage, ideal for recreation, storage, or extended living. The property sits on a generous quarter acre lot with ample outdoor space for entertaining, relaxing, or future customization. Conveniently located near local shopping, dining, parks, and waterfront amenities, this home is a perfect opportunity for buyers seeking a fully updated, turnkey property in Mastic Beach.
Unit Size
1,800 Ft²
Days on Market
163 days
Land Size
0.24 acres
Price per sqft
$331
Property Type
House
Property Taxes
$822
HOA Dues
-
Year Built
-

Payment Calculator

Home Price
Down Payment
%
Loan Term
Interest %

Your Estimated Monthly Payment

Principal + Interest:
Property Tax:
HOA:
Home Insurance:
Mortgage Insurance:

Cap Rate Calculator

Purchase Price
Monthly Property Taxes
Monthly Rental Income
Maintenance & HOA
Income Per Year
Expenses Per Year
Operating Profit Per Year
Cap Rate 100% Occupancy
N/A (extreme outlier)

What does this mean?

Based on our analysis, the cap rate of this property is 1.25%. A negative cap rate indicates that the property might not be feasible as an income-producing asset. The median cap rate for a near zip code 11238 is 4.23%.

How much can I actually make?

Actual monthly rental income may vary between $4,760 and $7,140 depending on unit-specific characteristics. You can change the amount using the slider to further explore.

How is cap rate calculated?

Cap Rate = Net Operating Income (NOI) / Property Asset Value.

When calculating the cap rate, we assume 100% occupancy. Leverage (mortgage) is not considered.

Cap Rate provided by RealtyHop and RentHop, learn more about cap rate here.

Last updated: 3 days ago (OneKey MLS #KEY990553)

Price History

Date / Event Date Event Price
Oct 7, 2026 Sold
Premium
Sold
May 15, 2026 In contract -
In contract
Apr 27, 2026 Listed by Real Broker NY LLC $594,999
Listed by Real Broker NY LLC

Property Highlights

Garage

Building Info

Overview

    General

  • Bedroom Count: 0
  • Building Condition: 0
  • Building Quality: 0
  • Construction Type: 0
  • Building Style: 0
  • Exterior Walls Type: 0
  • Interior Walls Type: 0
  • Roof Shape Type: 0
  • Roof Cover Type: 0
  • Floor Cover: 0
  • Basement Type: 0
  • Basement Area: 0
  • Garage Type: 0
  • Parking Space Count: 0
  • Patio Type: 0
  • Porch Type: 0
  • Pool Type: 0

    Dimensions

  • Lot Size Square Feet: 10,454
  • Total Building Area: 0
  • Building Area: 0

    Heating and Cooling

  • Air Conditioning: 0
  • Heating: 0
  • Heating Fuel Type: 0

    Utilities

  • Sewer System: 0
  • Water Service: 0

Building

  • Building Type: 0
  • Property Class: R
  • Land Acres: 0000000240
  • Standard Land Use Code: 1001
  • County Land Use Code: 210

Neighborhood

  • School District Name: William Floyd Union Free School District
  • School Tax School District: WILLIAM FLOYD
  • Census Tract: 159516

Geography

  • Account Number: 00004300205
  • District: 0200-9
  • Section: 979.00
  • Parcel: 0200-979.00-19.00-013.000
  • Block: 19
  • Lot: 13.000
  • Municipality: BROOKHAVEN
  • Latitude: 40.7644
  • Longitude: -72.8414

    Address

  • Full Address: 40 Alder Dr
  • Address - House Number: 40
  • Address - Street Name: Alder
  • Address - Suffix Type: Dr
  • State: NY
  • City Name: Mastic Beach
  • Carrier Code: C001
  • 4-Digit Zip Code: 5604
  • Zip Code: 11951

Valuation

    Tax

  • Tax Year: 2022
  • Tax Amount: $0
  • Tax Rate Code Area: 472232

    Appraisal Valuation

  • Standard Deviation: 0.2314
  • Valuation Date: Feb 14, 2024
  • Confidence Score: 53
  • Final Value: 413,273
  • High Value: 508,931
  • Low Value: 317,614

    Market Valuation

  • Market Total Value: $4,629
  • Market Land Value: $296
  • Market Improvement Value: $4,333

    Assessments Valuation

  • Assessed Year: 2023
  • Assessed Total Value: $2,500
  • Assessed Land Value: $160
  • Assessed Improvements Value: $2,340

    Exemptions

  • Homeowner Exemption: Yes
Data used for valuation calculations is provided by RealtyHop, and other third party sources
Request mortgage information redaction

Comparables

Unit
Status
Type
Beds
Baths
ft²
Price/ft²
Asking Price
Listed On
Closing Price
Sold On
HOA + Taxes

About Mastic Beach

Stats & Trends

Median Asking:

$450,000

Sale Price/ft²

$371

Below Asking

0.01%

Average Days on Market

87

Average Home Size

1310 ft²

Average Home Age

61.9 years

Currently For Sale

71 Listings
Based on RH Advisors, Inc. calculations of home data from MLS and/or public records.

Similar Homes for Sale

Currently no similar homes around

Nearby Rentals

Unit for rent at 11 Washington Avenue, Mastic Beach, NY, 11951

$3,300 /mo

  • 4 Beds
  • 2 Baths
  • 968 ft²
11 Washington Avenue, Mastic Beach, NY, 11951 Listing by Dari A. Rudge SRES SRS
Unit for rent at 356 Cypress Drive, Mastic Beach, NY, 11951

$3,600 /mo

  • 3 Beds
  • 1 Bath
  • 1,058 ft²
356 Cypress Drive, Mastic Beach, NY, 11951 Listing by Marie Jaffary
Unit for rent at 192 Cypress Drive, Mastic Beach, NY, 11951

$3,800 /mo

  • 4 Beds
  • 2 Baths
  • 1,404 ft²
192 Cypress Drive, Mastic Beach, NY, 11951 Listing by Amy Schuler

Rentals Near You

Click here to view more rentals in the neighborhood.
OneKey

Last Updated: 3 days ago
Data Source: OneKey MLS

Frequently Asked Questions

When was property at 40 Alder Drive built and last sold?
The property at 40 Alder Drive was built in and last sold on Jan 1, 1970 for $0.
How much is this home worth?
The estimated value of the home located at 40 Alder Drive is $0.
What are some comparable homes to 40 Alder Drive?
There are currently no comparable homes to 40 Alder Drive.
Recent Neighborhood News
Haunted NYC Real Estate: 6 Spooky Stories Behind the Addresses
Lake House Prices Near NYC in 2026: What Waterfront Actually Costs (Labor Day Buyer's Guide)
9 New York City Seafood and Raw Bars
Why Some NYC Tenement Apartments Had Bathtubs in the Kitchen
Popular Searches
Mastic Beach Homes for Sale
Mastic Beach Houses for Sale
Mastic Beach Multifamily for Sale
Mastic Beach Land for Sale
Mastic Beach Commercial for Sale
Mastic Beach Homes with Basements
Mastic Beach Homes with Pools
Mastic Beach Homes with Parking
Nearby Cities
Shirley Homes for Sale
Mastic Homes for Sale
Center Moriches Homes for Sale
East Moriches Homes for Sale
Yaphank Homes for Sale
Brookhaven Homes for Sale
Moriches Homes for Sale
Nearby Property Records
Suffolk County, NY Property Records
Nassau County, NY Property Records
New Haven County, CT Property Records
Fairfield County, CT Property Records
Middlesex County, CT Property Records
Westchester County, NY Property Records
New York, NY Property Records
Hudson County, NJ Property Records
Nearby Counties
Poospatuck Homes for Sale
Top Real Estate Agents
Top Agents in Mastic Beach
Top Agents in 11967
Top Agents in Shirley
Top Agents in 11951
Top Agents in 11950
Top Agents in Mastic
Top Agents in Center Moriches
Top Agents in 11934