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MLS ID KEY1049260Last updated Oct 3, 2026

Single Family

177 Prospect Avenue

Pending · Oyster Bay · Nassau County, NY 11579

Bedrooms
3 Beds
Bathrooms
1 Bath
Year built
1883
Est. monthly taxes
$962.92
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About this home

Welcome to Idlewild cottage! This charming home has all the characteristics that one looks for in a quintessential Sea Cliff home, hardwood floors, architectural details, oversized windows, a wood burning fireplace, eat in kitchen and a coveted two car garage. The private backyard has plenty of room for entertaining and enjoying the outdoors. One of the best features of this home is it's close location to the beach, parks, town and schools. Don't miss this opportunity to own a piece of Sea Cliff history!

Listing snapshot

Days on site
42 days
Listed on MLS
Sep 16, 2026
Full baths
1
Half baths
0
Annual property tax (MLS)
$11,555
Tax year
2026
Area source (MLS)
Public Records
Listing brokerage
Douglas Elliman Real Estate
MLS ID
KEY1049260
Last updated
Oct 3, 2026

General features

Property type
Single Family
Property subtype
Single Family Residence
Year built
1883
Garage
Yes
Garage spaces
2
Total parking
2
Parking
Covered
Water source
Public
Sewer
Cesspool
Utilities
Electricity Connected, Natural Gas Connected, Trash Collection Public, Water Connected

Interior features

Basement
Full, Partially Finished
Heating
Hot Water, Natural Gas
Cooling
Wall/Window Unit(s)
Interior
Built-in Features, Eat-in Kitchen, Entrance Foyer, Formal Dining, Original Details
Appliances
Dryer, Gas Cooktop, Oven, Refrigerator, Washer, Gas Water Heater
Flooring
Carpet, Hardwood
Fireplace
Yes
Fireplaces
1

Exterior features

Architectural style
Victorian
Construction materials
Clapboard
Exterior
Garden
Private pool
No

Schools (MLS)

Elementary school
Sea Cliff Elementary School
Elementary school district
North Shore
Middle school
North Shore Middle School
Middle school district
North Shore
High school
North Shore Senior High School
High school district
North Shore

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

Recent activity

  1. Listing updated from MLS
  2. MLS status changed
  3. First seen on this site

Location

Oyster Bay · Nassau County, NY 11579Show interactive map
177 Prospect Avenue

Oyster Bay · Nassau County, NY 11579

Google Maps directions

Estimate monthly payment

Loan detailsFixed-rate, fully amortizing loan. Edit the assumptions below; no market rate is supplied.
Property expenses (USD)
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.