About this home
Privately set behind a gated drive on two acres along Eel River, this remarkable Osterville waterfront estate commands a rare vantage point overlooking the river and Nantucket Sound. The architecture is designed around the setting, with broad expanses of glass, soaring coffered ceilings, fine millwork, and a succession of light-filled spaces oriented toward the water. The main level brings together a gracious chef’s kitchen, a dramatic great room overlooking the water, and a luxurious primary suite with its own media room. The residence unfolds across three levels, with a graceful stairway connecting each floor. The second level offers three additional bedroom suites, while the third floor creates a more intimate retreat, with a spacious waterfront sitting room opening to a private balcony, and a fifth bedroom along with two bonus rooms. The finished lower level is dedicated to recreation, with a theater accommodating 20 and a substantial game and media room. Beyond the main residence, the property takes on the character of a private coastal compound. A separate two-bedroom guest house with three-car garage and pool house overlooks the expansive pool and surrounding grounds. Multiple terraces and outdoor rooms lead toward the water, where a private sandy beach and substantial deep-water dock provide direct access to Eel River and Nantucket Sound. The setting is quintessentially Osterville: private, deeply connected to the water, and minutes from the village, its beaches, harbor, shops, and restaurants. With its scale, architectural pedigree, guest accommodations, and exceptional boating access, this is a distinctive waterfront offering in one of Cape Cod’s most sought-after enclaves. 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.
Listing last checked: Listing updated:
Listed by Robert Kinlin · Berkshire Hathaway HomeServices Robert Paul Properties · MLS #73584008
Request property information
Select a document to start a request. You can add others in the form. Availability varies.
Details at a glance
Interior6 property facts
- Rooms
- 17
- Heating
- Central
- Cooling
- Central Air
- Flooring
- Wood, Tile, Flooring - Wood
- Basement
- Yes · Full, Partially Finished, Interior Entry
- Fireplaces
- 2
Building6 property facts
- Style
- Single Family Residence
- Year built
- 2006
- Garage
- 3
- Parking
- 13
- Foundation
- Concrete Perimeter
- Roof
- Shingle
Land & utilities6 property facts
- Lot size
- 2 acres
- Water
- Public
- Sewer
- Private Sewer
- Waterfront
- Y
- Pool
- Yes · In Ground, Private
- Zoning
- RF-1
Financial2 property facts
- Annual taxes
- $105,022
- Assessment year
- 2026
Location
Estimated monthly cost
Explore costs at the $16,000,000 asking price. Adjust the assumptions to your situation.
Known monthly costs$89,657 / monthAdjust
- Principal & interest
- $80,905
- Property tax
- $8,752
- Insurance
- Not entered
- HOA
- Not entered
Listing annual taxes: $105,022. Initial monthly tax is one twelfth of that amount. HOA amount was not supplied.
Partial estimate: add insurance, monthly HOA to include those costs. Blank amounts are unknown.
The initial 6.5% rate is illustrative, not a current rate or lender quote. Excludes utilities, maintenance, closing costs and mortgage insurance, which may apply with a down payment below 20%. Taxes and insurance can change.
More property insights
Automated value estimate $7,107,891
Estimated range $2,811,773–$11,404,009.
Automated estimates are not appraisals or guarantees of market value.
Request a professional market analysisPhoto-based condition insights
Overall presentation: excellent
Explore more of Barnstable
Continue your search in Barnstable.
Need help making sense of this home?
About 74 Garrison Ln
Can I request a private showing?
Request a tour of 74 Garrison Ln and a Bean Group agent will help coordinate an available time with the listing side.
Can you help me evaluate this property?
Yes. We can discuss condition, comparable sales, offer strategy and the questions worth asking before you decide whether to proceed.
Are property documents available?
Availability varies by property and source. Request the documents you need and we will help obtain what is available.

