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Gundersheim Group Real Estate

© 2026 Melanie Gundersheim. All rights reserved.
Equal Housing Opportunity. Information deemed reliable but not guaranteed.

  1. Home
  2. Listings
  3. 8 Onset Ave, Wareham, MA 02532
Active Under Contract
19 Days on market
8 Onset Ave Wareham — Photo 1 of 42

8 Onset Ave Wareham — Photo 1 of 42

$2,500,000

8 Onset Ave, Wareham, MA 02532

Wareham, MA 02532 — Buzzards Bay, Onset Village

Beds

4

Baths

3.5

SqFt

3,510

Style

Single Family

Built

1925

Experience an extraordinary waterfront lifestyle in this architecturally reimagined coastal estate offering a 140 ft of direct water frontage and sweeping views of Butlers Cove, Mass Maritime Academy, Cape Cod Canal, railroad bridge, & unforgettable sunsets over Buzzards Bay. Complete with a 130-ft licensed fixed dock, 36-ft floating dock, aluminum gangway, power, water, & JetDock lift, enjoy unrestricted boating access to Buzzards Bay, Cape Cod, the Islands, & beyond—with no bridges.Rebuilt to the studs & completed in 2022, this exceptional 3,510± SF residence seamlessly blends timeless New England architecture w/refined coastal elegance. Superior craftsmanship showcased throughout, from Brazilian cherry flooring, custom millwork, solid wood doors to Azek exterior trim, Trex decking, & premium materials crafted for generations. The open-concept living space is anchored by a spectacular chef's kitchen featuring Wolf, Sub-Zero, Miele appliances, custom cabinetry, Quartz countertops, an oversized granite island, and a Walk-in Butler's pantry w/hidden powder room. Thoughtfully designed floor plan offers 4 bedrooms & 3.5 baths, inc a luxurious Waterfront Primary Suite, a spacious 2nd fl family room, 3rd fl office w/panoramic water views, & an unfinished walk-out lower level ready for future expansion.A separately deeded waterfront lot provides added privacy & exceptional potential for a future garage or accessory dwelling (subject to approvals), supported by an existing 5-bedroom septic system. Addi'l highlights include a custom 5-zone heating &cooling system, heated entry flooring, Newport Brass fixtures, Pentair whole-house water treatment with reverse osmosis, underground electrical service, and generator hookup. A truly rare opportunity to own one of the South Coast's premier waterfront estates, where timeless design, uncompromising craftsmanship, protected docking, & direct access to the open waters of Buzzards Bay create an unmatched coastal lifestyle

Market Value Analysis

This Property
Size (SqFt) →Price →
This Property$712/sqft
Local Avg (Wareham)$387/sqft
84% AboveMarket Average

* Analysis is based on 24 actively listed and recently sold comparable properties strictly within Wareham, MA.

Property Details

Financials

Original Price$2,500,000
Annual Taxes$11,173

Parking

Garage0
Off-Street8

Interior Specifications

Total Rooms12
Fireplaces1
FlooringTile, Hardwood, Flooring - Stone/Ceramic Tile, Flooring - Hardwood
BasementFull, Walk-Out Access, Interior Entry, Concrete, Unfinished

Climate & Utilities

HeatingCentral, Forced Air, Radiant, Heat Pump, Natural Gas
CoolingCentral Air, Heat Pump
WaterPublic
SewerPrivate Sewer

Building & Exterior

ConstructionFrame
RoofShingle
FoundationConcrete Perimeter, Block
ZoningR43

Property & Lot

Acres0.33
SqFt Lot14,345
Lot FeaturesCleared, Gentle Sloping, Other

Amenities & Appliances

Gas Water Heater • Range • Dishwasher • Refrigerator • Washer • Dryer • Wine Refrigerator • Range Hood • Other • Wine Cooler • Plumbed For Ice Maker

Neighborhood

Park • Walk/Jog Trails • Golf • Conservation Area • Highway Access • House of Worship

Geography

Floorplan Breakdown

Structural Layout

Third
OfficeBedroom 3Bedroom 4
Second
Family RoomMaster BedroomBedroom 2Bathroom 2Bathroom 3
Main,First
Living RoomDining RoomKitchenBathroom 1
Living Room
Lvl Main,First

Beamed Ceilings, Flooring - Hardwood, Balcony / Deck, Exterior Access, Open Floorplan, Recessed Lighting, Remodeled, Beadboard, Crown Molding

Dining Room
Lvl Main,First

Beamed Ceilings, Flooring - Hardwood, Exterior Access, Open Floorplan, Recessed Lighting, Remodeled, Beadboard, Crown Molding

Kitchen
Lvl Main,First

Bathroom - Half, Flooring - Hardwood, Dining Area, Pantry, Countertops - Upgraded, Kitchen Island, Cabinets - Upgraded, Exterior Access, Open Floorplan, Recessed Lighting, Remodeled, Stainless Steel Appliances, Pot Filler Faucet, Gas Stove, Beadboard, Crown Molding, Decorative Molding

Office
Lvl Third

Flooring - Hardwood, Window(s) - Bay/Bow/Box, Open Floor Plan, Lighting - Pendant, Lighting - Overhead, Crown Molding, Decorative Molding

Family Room
Lvl Second

Bathroom - Full, Beamed Ceilings, Flooring - Hardwood, Window(s) - Bay/Bow/Box, Open Floorplan, Recessed Lighting, Remodeled, Lighting - Overhead, Beadboard, Crown Molding

Master Bedroom
Lvl Second

Bathroom - Full, Ceiling Fan(s), Closet, Flooring - Hardwood, Window(s) - Bay/Bow/Box, Dressing Room, Recessed Lighting, Crown Molding, Decorative Molding

Bedroom 2
Lvl Second
Bedroom 3
Lvl Third

Walk-In Closet(s), Flooring - Hardwood, Window(s) - Bay/Bow/Box, Dressing Room, Recessed Lighting, Crown Molding, Decorative Molding

Bedroom 4
Lvl Third

Closet, Flooring - Hardwood, Window(s) - Bay/Bow/Box, Recessed Lighting, Crown Molding, Decorative Molding

Bathroom 1
Lvl Main,First

Bathroom - Half, Flooring - Stone/Ceramic Tile, Countertops - Stone/Granite/Solid, Cabinets - Upgraded, Recessed Lighting, Crown Molding, Decorative Molding, Pocket Door

Bathroom 2
Lvl Second

Bathroom - Full, Bathroom - Tiled With Tub & Shower, Flooring - Hardwood, Window(s) - Bay/Bow/Box, Countertops - Stone/Granite/Solid, Double Vanity, Remodeled, Lighting - Overhead, Crown Molding, Closet - Double, Soaking Tub

Bathroom 3
Lvl Second

Bathroom - Full, Bathroom - With Shower Stall, Flooring - Stone/Ceramic Tile, Window(s) - Bay/Bow/Box, Countertops - Stone/Granite/Solid, Recessed Lighting, Remodeled

Population

13,267

U.S. Census Bureau, ACS 2024 5-Year Estimates (B01003)

Median Household Income

$88K

U.S. Census Bureau, ACS 2024 5-Year Estimates (B19013)

Renter-Occupied Homes

21.7%

U.S. Census Bureau, ACS 2024 5-Year Estimates (B25003)

New Construction Permits — Barnstable County

513 housing units permitted in the last 12 months (-50% vs the prior 12 months) — 128 in 5+ unit buildings

U.S. Census Bureau, Building Permits Survey (through Jun '26)

ADU Potential

Massachusetts allows one accessory dwelling unit by right in single-family zoning districts statewide (M.G.L. c. 40A §3; 760 CMR 71.00, effective Feb 2025). Estimated maximum ADU size for this property: 900 sq ft (the lesser of 900 sq ft or half the 3,510 sq ft principal dwelling). Lot size: 14,345 sq ft.

Based on listing data, which indicates the property type — not the zoning district. Local dimensional, septic (Title 5), and historic-district requirements still apply. Not legal advice — verify with the municipality.

Full Wareham, MA market report ZIP 02532 market data
Listing Provided By

Listing Agent: Susan Marshall

Listing Office: Keller Williams Elite

MLS® Number: 73555490

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