Active
738 Days on market
501 Eel River Rd Barnstable — Photo 1 of 42

501 Eel River Rd Barnstable — Photo 1 of 42

Recent Drop: $550,000

$10,500,000
$9,950,000

$9,950,000

Investment Analysis — 501 Eel River Rd

Barnstable, MA 02655 — Osterville

Based on HUD Small Area Fair Market Rent for Barnstable Town, MA MSA, a 6-bedroom in 02655 carries an estimated $3,650/mo in gross rent — about a -0.24% cap rate and $-23,575/yr in estimated NOI at the $9,950,000 list price. Adjust every assumption in the calculator below.

View Standard Listing

Beds

6

Baths

8

SqFt

8,203

Style

Single Family

Built

2017

Discover the epitome of luxury living in this custom-designed waterfront estate, featuring breathtaking views of Eel River and Nantucket Sound. Located in the village of Osterville and set on an expansive and beautifully landscaped 2.4-acre lot, this stunning residence features over 8,000 square feet of meticulously crafted living space with rich details, modern comforts and extraordinary views. The grand interiors seamlessly blend with the exquisitely landscaped outdoor spaces, featuring an inground pool, hot tub, spacious pool house, and a substantial private deep-water dock. Upon entering the home, the grand foyer leads you into the magnificent great room with a two-story custom fireplace, where panoramic vistas of the water and breathtaking sunsets set the scene for unforgettable family gatherings as well as effortless entertaining. The generous floor plan also features a refined library, formal dining room, a gourmet kitchen with center island, custom cabinetry and top-of-the-line appliances and a state-of-the-art home theatre. The six en-suite bedrooms include a first-floor suite with French doors leading to the back yard and a lavish primary suite with a luxurious bathroom, two walk-in closets and a private deck overlooking the water. Enhanced with modern conveniences such as a Sonos whole-house sound system and a 9-zone Hydro air system, every detail has been carefully planned and implemented. Additional highlights include a private guest suite above the attached 3-car garage and a sprawling entertainment room with a balcony on the third level highlighted by western exposure to experience breathtaking sunsets. Located just minutes from the upscale boutiques and renowned dining of Osterville village, this extraordinary property offers a lifestyle of unparalleled elegance and tranquility by the sea. The information contained herein has been obtained through sources deemed reliable but cannot be guaranteed as to its accuracy. Buyers are encouraged to do their own due diligence through independent verification.

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 8,203 sq ft principal dwelling). Lot size: 104,544 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.

Estimates — not financial advice

These figures are illustrative estimates for informational purposes only — not an appraisal, valuation, or guarantee of rent, income, or returns, and not financial, tax, or investment advice. Rent is either the figure reported on the MLS listing — in-place rent that may differ from market and is not verified against the actual leases — or, where the listing reports none, an estimate from HUD Small Area Fair Market Rents, a government benchmark that may differ from actual market rent. Each figure is labelled with its source. Cap rate, NOI, and returns depend on the assumptions shown, which you can change. MLS and other third-party data may be inaccurate or out of date. Verify all figures independently and consult your own financial, tax, and legal advisors before making any investment decision.

Property Details

Financials

Original Price$10,500,000
Annual Taxes$56,863

Parking

Garage3
Off-Street8

Interior Specifications

Total Rooms10
Fireplaces2
FlooringWood, Tile, Carpet, Flooring - Wall to Wall Carpet, Flooring - Wood
BasementNone

Climate & Utilities

HeatingForced Air, Natural Gas, Fireplace
CoolingCentral Air
WaterPublic
SewerPrivate Sewer

Building & Exterior

Construction--
RoofShingle
FoundationConcrete Perimeter
ZoningRF

Property & Lot

Acres2.4
SqFt Lot104,544
Lot FeaturesCorner Lot, Cleared

Amenities & Appliances

Range • Dishwasher • Microwave • Refrigerator • Washer • Dryer • Range Hood

Neighborhood

Shopping • Tennis Court(s) • Park • Golf • Conservation Area • Highway Access

Geography

Floorplan Breakdown

Structural Layout

Unknown
Living RoomKitchenMaster BedroomBedroom 3Bedroom 4Bedroom 5
Living Room
Lvl null

Cathedral Ceiling(s), Beamed Ceilings, Flooring - Wood, French Doors, Exterior Access

Kitchen
Lvl null

Flooring - Wood, Dining Area, Pantry, Kitchen Island, Breakfast Bar / Nook, Exterior Access, Slider, Pot Filler Faucet

Master Bedroom
Lvl null

Bathroom - Full, Walk-In Closet(s), Closet, Flooring - Wood, Balcony - Exterior, Slider

Bedroom 3
Lvl null

Bathroom - Full, Walk-In Closet(s), Flooring - Wood

Bedroom 4
Lvl null

Bathroom - Full, Walk-In Closet(s), Flooring - Wood, Balcony / Deck

Bedroom 5
Lvl null

Bathroom - Full, Walk-In Closet(s), Flooring - Wood

Property History

Price Drop
$9,950,000

Was $10,500,000

Feb 20, 2026

MLS® 73285680

Listed
$10,500,000

Sep 4, 2024

MLS® 73285680

Listing Provided By

Listing Agent: Robert Kinlin

Listing Office: Berkshire Hathaway HomeServices Robert Paul Properties

MLS® Number: 73285680