Single Family

66 Frederick Avenue

Active · Islip · Suffolk County, NY 11706

Asking price$595,000Estimate monthly payment Request a Showing

Bedrooms: 4 Beds
Bathrooms: 2 Baths
Year built: 1947
Est. monthly taxes: $769.5

0 of 2 photos ready

About this home

Discover the possibilities in this 4-bedroom, 2-full-bath Cape Cod situated on a nearly half-acre lot! Featuring a cozy fireplace, full unfinished basement with outside separate entrance (OSE), and a fully fenced backyard, this home offers plenty of space to make it your own. The expansive driveway accommodates 3+ vehicles, adding everyday convenience. The full basement offers additional potential, while a possible mother/daughter arrangement may be considered with proper permits and approvals. Heated by oil, this property presents an exciting opportunity for buyers looking to personalize a home to their taste. Bring your vision, explore the possibilities, and make this property your dream home!

Listing snapshot

Days on site: 3 days
Listed on MLS: Oct 30, 2026
Full baths: 2
Half baths: 0
Annual property tax (MLS): $9,234
Tax year: 2026
Area source (MLS): Public Records
Listing brokerage: Signature Premier Properties
MLS ID: KEY1056651
Last updated: Oct 31, 2026

General features

Property type: Single Family
Property subtype: Single Family Residence
Year built: 1947
Garage: No
Parking: Driveway
Water source: Public
Sewer: Cesspool
Utilities: Cable Available, Electricity Connected, Trash Collection Public, Water Connected

Interior features

Basement: Full, Storage Space, Unfinished, Walk-Out Access
Heating: Baseboard, Oil
Cooling: Wall/Window Unit(s)
Interior: First Floor Bedroom, First Floor Full Bath, Eat-in Kitchen, Original Details, Master Downstairs, Storage, Walk Through Kitchen
Appliances: Electric Cooktop, Electric Oven, Freezer, Oven, Refrigerator
Fireplace: Yes

Exterior features

Architectural style: Cape Cod
Construction materials: Frame
Private pool: No

Schools (MLS)

Elementary school: Oak Park Elementary School
Elementary school district: Brentwood
Middle school: South Middle School
Middle school district: Brentwood
High school: Brentwood High School
High school district: Brentwood

School information is provided by the MLS. Confirm attendance eligibility with the school district.

Recent activity

Oct 31, 2026Listing updated from MLS
Oct 30, 2026First seen on this site
Oct 30, 2026MLS status changed

Location

Islip · Suffolk County, NY 11706Show interactive map

66 Frederick Avenue

Islip · Suffolk County, NY 11706

Google Maps directions

Estimate monthly payment

Payment method

Loan detailsFixed-rate, fully amortizing loan. Edit the assumptions below; no market rate is supplied.

Down payment %Interest rate %Term

Property expenses (USD)

Annual property taxMonthly association / maintenance fees

Does the management / maintenance fee include property tax?MLS amounts are prefilled when available and can be edited. Confirm what fees include. Unknown fee frequencies cannot be converted automatically.Property expenses: MLS values where available; missing values stay blank.

Estimated monthly principal & interest—

Monthly property taxNot provided

Monthly association / maintenance feesNot provided

Estimated monthly total of entered costs—

Excludes insurance, mortgage insurance, special assessments and lender fees. MLS taxes may reflect abatements or exemptions and can change.

Listing data is supplied by the MLS and may change without notice.

Request a Showing