4 beds1,301 sqft$384/sqft
11 Knapp Rd, Mastic Beach, NY 11951
Est: $3,158/moGet pre-approved

Description

4 Bedroom, 1 Bath. Contract Vendee4 Bedroom, 1 Bath. Contract Vendee
LISTING UPDATED: 08/20/2026 05:37 PM

  1. Listed by Kimberley A. Affrunti CBR • BH&G R E Realty Connect
    P: (631) 881-5160 C: (631) 599-4047 kaffrunti@realtyconnectusa.com

Property Details for 11 Knapp Road

Status
MLS #
1041332
Days on Market
Listed Today
Taxes
$7,455 / year
HOA Fees
-
Condo/Co-op Fees
-
Property Type
MLS Type
Single Family
Year Built
1955
Lot Size
0.23 AC / 10,019 SF
City/Township
Brookhaven
Architectural Style
Post Modern, Ranch
Waterfront
No

Location

Listing Courtesy of BH&G R E Realty Connect, Kimberley A. Affrunti CBR
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Building Information for 11 Knapp Road

Stories-Year Built1955Building Size-Lot Size0.23 AC / 10,019 SF

Payment Calculator

$3,158 per month

30 year fixed, 6.55% Interest

Principal and Interest

$2,536

Property Taxes

$621

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

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Property Information for 11 Knapp Road

Summary
Location and General Information
  • Senior Community YN: No
  • Property Attached: No
  • Structure Type: Detached
  • Levels: One
  • State Or Province: NY
School Information
  • School District: William Floyd
  • Elementary School District: William Floyd
  • Elementary School: William Floyd Elementary School
  • Middle Or Junior School District: William Floyd
  • Middle Or Junior School: William Floyd Middle School
  • High School District: William Floyd
  • High School: William Floyd High School
Rental
Rental
  • Lease Considered: No
Unit Information
Unit Information
  • Building Units Total: 1
Taxes and HOA Information
Taxes and HOA Information
  • Tax Source: Municipality
  • Tax Year: 2026
  • Association: No
Interior and Exterior Features
Interior Features
  • Amenities: Cathedral/Vaulted/High Ceiling, Chefs Kitchen, Crown Molding, Eat in Kitchen, Formal Dining, Post Modern, Public, Quartz/Quartzite Counters, Ranch, Recessed Lighting
  • Interior Features: Cathedral Ceiling(s), Chefs Kitchen, Crown Molding, Eat-in Kitchen, Formal Dining, Quartz/Quartzite Counters, Recessed Lighting
  • Appliances: Stainless Steel Appliance(s)
  • Total Rooms: 9
  • Basement: Full
  • Attic Description: Partial
  • Location Amenities: Stainless Steel Appliances, Cathedral/Vaulted/High Ceiling, Chef's Kitchen, Eat in Kitchen, Formal Dining Room
  • Spa: No
  • Living Area: 1301
  • Foundation Details: Slab
  • Basement: No
Exterior Features
  • Exterior Property Features: Private
  • Elevation Certificate: No
  • Construction Materials: Wood Siding
  • Pool Private: No
Lot Information
  • Building Area Units: Square Feet
Parking
  • Parking Features: Private
  • Garage: No
  • Carport: No
Utilities
  • Cooling: None
  • Heating: Oil
  • Heat Fuel Type: Oil
  • Sewer: Cesspool
  • Water Source: Public
  • Utilities: Electricity Available
Green Features
  • Green Features: Stainless Steel Appliance(s), Oil

Property History for 11 Knapp Road

DateEvent & SourcePriceAppreciation
Aug 20, 2026

Listed (Active)

ONEKEY #1041332

$499,000
Aug 3, 2022

Sold (Public Record)

Public Record #1523634399

$389,000
Aug 3, 2022

Sold (Public Record)

Public Record #1523634399

$389,000

+37.6% / yr

DateEvent & SourcePrice
08/20/2026

Listed (Active)

ONEKEY #1041332

$499,000
08/03/2022

Sold (Public Record)

Public Record #1523634399

$389,000
08/03/2022

Sold (Public Record)

Public Record #1523634399

$389,000

+37.6% / yr

For completeness, we often displays two records for one sale: the MLS record and the public record.

Public Records for 11 Knapp Road

Taxable ValueLand$200Additions$1,500Total$1,700
Tax Record2024$7,070 ($589 / month)
Home Facts
Beds0Lot Size10,019 SqFtStyleSingle Family ResidenceCountySUFFOLKAPN0200-978.90-09.00-063.000

Schools near 11 Knapp Road

This home is within William Floyd Union Free School District.
Rating
School
Type
Grades
Distance
Public - K to 5
Public - 6 to 8
Public - 9 to 12
Public - K to 5
Rating
School
Distance
Tangier Smith Elementary School
PublicK to 5

William Paca Middle School
Public6 to 8

William Floyd High School
Public9 to 12

William Floyd Learning Center
PublicK to 5

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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11 Knapp Road is a single family home for sale in Mastic Beach, NY 11951. This property was listed for sale on August 20, 2026 by BH&G R E Realty Connect, it's currently listed at $499,000. It has been on the market for a total of 0 days and was last sold on August 3, 2022. This listing's school district is William Floyd Union Free School District. Nearby schools include Tangier Smith Elementary School, William Paca Middle School and William Floyd High School. 11 Knapp Road is a 4-bed, 1-bath, 1,301 sqft single family home built in 1955.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of any information, descriptions or measurements (including square footage measurements and property condition), such should be independently verified through appropriate means, including, but not limited to, in person inspection and public records, and Compass International Holdings, its subsidiaries, affiliates and independently owned and operated franchisees, and their affiliated agents and associated third parties expressly disclaim any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the seller's discretion. No financial or legal advice provided. Equal Housing Opportunity.

Listing Courtesy of BH&G R E Realty Connect, Kimberley A. Affrunti CBR

Based on information submitted to the MLS GRID as of 08/20/2026 05:37 PM. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Properties displayed may be listed or sold by various participants in the MLS. IDX information is provided exclusively for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed by MLS GRID. Use of the MLS GRID data may be subject to an end user license agreement prescribed by the applicable MLS of the Member Participant, if any, and as amended from time to time.