Single Family
45 Penataquit Avenue
Active · Islip · Suffolk County, NY 11706
- Bedrooms
- 10 Beds
- Bathrooms
- 7 Baths
- Year built
- 1850
- Est. monthly taxes
- $3,195.08
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About this home
Step back in time and experience the grandeur of this extraordinary 1850 Victorian estate, a truly one-of-a-kind residence where timeless architecture, remarkable scale, and old-world craftsmanship create something rarely found today. Set on 1.64 breathtaking, park-like acres, this magnificent property offers exceptional privacy, an inground pool, and endless possibilities. From the moment you enter, soaring ceilings, intricate crown moldings, beautiful hardwood floors, and exquisite period details capture the elegance and charm of a bygone era. Three expansive floors of living space feature a magnificent living room, grand banquet-sized formal dining room, large eat-in kitchen, and an inviting den with fireplace. The main residence offers an impressive ten bedrooms, seven full baths, and a full basement, providing extraordinary space and versatility. The estate also features a separate back house offering four additional bedrooms, two full baths, and a two-car garage, adding another remarkable dimension to this unique property. Rich in history and overflowing with character, this exceptional Victorian estate presents a rare opportunity to restore, reimagine, and create something truly spectacular. From its grand interior spaces to its sprawling grounds and resort-style pool, this is more than a home. It is a piece of history waiting for its next chapter. Make this extraordinary one-of-a-kind estate yours.
Listing snapshot
- Days on site
- 59 days
- Listed on MLS
- Aug 12, 2026
- Full baths
- 7
- Half baths
- 0
- Annual property tax (MLS)
- $38,341
- Tax year
- 2025
- Area source (MLS)
- Public Records
- Listing brokerage
- Netter Real Estate Inc
- MLS ID
- KEY1037620
- Last updated
- Sep 18, 2026
General features
- Property type
- Single Family
- Property subtype
- Single Family Residence
- Year built
- 1850
- Garage
- Yes
- Garage spaces
- 2
- Parking
- Driveway
- Water source
- Public
- Sewer
- Public Sewer
- Utilities
- Electricity Connected, Natural Gas Connected, Sewer Connected, Water Connected
Interior features
- Basement
- Full
- Heating
- Natural Gas
- Cooling
- Central Air
- Interior
- First Floor Full Bath, Built-in Features, Chefs Kitchen, Crown Molding, Eat-in Kitchen, Entrance Foyer, Formal Dining, Granite Counters, High Ceilings, Kitchen Island, Primary Bathroom, Storage, Walk-In Closet(s)
- Appliances
- Gas Cooktop, Gas Oven, Refrigerator
- Flooring
- Wood
- Fireplace
- Yes
- Fireplaces
- 1
Exterior features
- Architectural style
- Victorian
- Construction materials
- Vinyl Siding
- Private pool
- Yes
Schools (MLS)
- Elementary school
- Brook Avenue Elementary School
- Elementary school district
- Bay Shore
- Middle school
- Bay Shore Middle School
- Middle school district
- Bay Shore
- High school
- Bay Shore Senior High School
- High school district
- Bay Shore
School information is provided by the MLS. Confirm attendance eligibility with the school district.
Recent activity
- Listing updated from MLS
- First seen on this site
- MLS status changed
Location
Estimate monthly payment
Estimated monthly principal & interest—
Monthly property taxNot provided
Monthly association / maintenance feesNot provided
Estimated monthly total of entered costs—
Listing data is supplied by the MLS and may change without notice.
