For Sale
Single family home for sale at 45 S Penataquit Ave, Islip, NY 11706 | MLS# 1037620 | Listing updated on 2026-09-18
Photo 1 of Single family home for sale at 45 S Penataquit Ave, Islip, NY 11706 | MLS# 1037620 | Listing updated on 2026-09-18
Photo 2 of Single family home for sale at 45 S Penataquit Ave, Islip, NY 11706 | MLS# 1037620 | Listing updated on 2026-09-18
Photo 3 of Single family home for sale at 45 S Penataquit Ave, Islip, NY 11706 | MLS# 1037620 | Listing updated on 2026-09-18
Photo 4 of Single family home for sale at 45 S Penataquit Ave, Islip, NY 11706 | MLS# 1037620 | Listing updated on 2026-09-18
35+
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Street View

$2,200,000

Monthly Est:$10,950

  • Beds Icon10 Beds
  • Beds Icon
    7 Baths
  • Beds Icon8,783sqft

45 S Penataquit Ave, Islip, NY 11706

$10,950/moEst:

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  • Single Family Residence

  • Built in 1850

  • $-- HOA

  • 1.64 acres lot

  • $250/sq.ft

Description

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 k
itchen, 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.

  • Houzeo last checked: 10 minutes ago
  • Listing updated: September 18, 2026 at 4:17 pm
  • Listing Provided by: Matthew B. Arnold (631) 661-5100 | Netter Real Estate Inc (631) 661-5100
  • Source: OneKey MLS-NY | MLS#: 1037620 OneKey MLS-NY

Property Details

  • Status

    Active

  • Type

    Single Family Residence

  • No. of Stories

    -

  • County

    Suffolk County

  • City

    Islip

  • Neighborhood

    --

  • Year Built

    1850

  • HOA Fees

    -

  • Finished Area

    8,783 sqft

  • Lot Size

    1.64 acres lot

  • Basement Area

    - sqft

  • MLS Name

    OneKey MLS

  • MLS Number

    1037620

  • MLS Status

    Active

  • Days on Market

    57

  • Cumulative Days on Market

    37

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Location

Facts & Features

Rooms

  • Bedrooms & bathrooms

    Bedrooms: 10

    Bathrooms: 7

Interior

  • Interior Features

    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)

  • Cooling

    Central Air

  • Heating

    Natural Gas

  • Sewer

    Public Sewer

  • Flooring

    Wood

  • Appliances

    Gas Cooktop, Gas Oven, Refrigerator

Construction

  • Year Built

    Year Built: 1850

  • Home type

    Single Family Residence

  • Property Condition

    Actual

  • Construction Materials

    Vinyl Siding

  • Architectural Style

    Victorian

Utilities & Energy

  • Utilities

    Electricity Connected, Natural Gas Connected, Sewer Connected, Water Connected

  • Pool Features

    In Ground, Vinyl

  • Water Source

    Public

  • Parking Features

    Driveway

  • Basement

    Full

  • Laundry Features

    Laundry Room

Other Features

  • Lot Features

    Back Yard

  • Patio And Porch Features

    Deck, Porch, Wrap Around

Price History

DateEventPrice

08/12/2026

Source: mls_logoOneKey MLS-NY #KEY1037620

Listed for Sale

$2,200,000

$250/sqft

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Based on information from OneKey MLS, through Oct 09, 2026, 06:31AM. IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. © 2026 OneKey® MLS. All rights reserved.

Advertising Broker: Derek Greene | The Greene Realty Group