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74 Garrison Ln Barnstable — Photo 1 of 42

74 Garrison Ln Barnstable — Photo 1 of 42

$16,000,000

Investment Analysis — 74 Garrison Ln

Barnstable, MA 02655 — Osterville

Based on HUD Small Area Fair Market Rent for Barnstable Town, MA MSA, a 7-bedroom in 02655 carries an estimated $3,650/mo in gross rent — about a -0.45% cap rate and $-71,734/yr in estimated NOI at the $16,000,000 list price. Adjust every assumption in the calculator below.

View Standard Listing

Beds

7

Baths

11.5

SqFt

14,292

Style

Single Family

Built

2006

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.

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 14,292 sq ft principal dwelling). Lot size: 87,120 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$16,000,000
Annual Taxes$105,022

Parking

Garage3
Off-Street13

Interior Specifications

Total Rooms17
Fireplaces2
FlooringWood, Tile, Flooring - Wood
BasementFull, Partially Finished, Interior Entry

Climate & Utilities

HeatingCentral
CoolingCentral Air
WaterPublic
SewerPrivate Sewer

Building & Exterior

Construction--
RoofShingle
FoundationConcrete Perimeter
ZoningRF-1

Property & Lot

Acres2
SqFt Lot87,120
Lot FeaturesCleared, Level

Amenities & Appliances

Plumbed For Ice Maker

Neighborhood

Shopping • Park • Golf • House of Worship • Marina • Private School

Geography

Floorplan Breakdown

Structural Layout

Unknown
Living RoomDining RoomKitchenFamily RoomPrimary BedroomBedroom 3Bedroom 4Bedroom 5
Living Room
Lvl null

Coffered Ceiling(s), Flooring - Wood, Recessed Lighting, Slider

Dining Room
Lvl null

Beamed Ceilings, Vaulted Ceiling(s), Flooring - Wood, Recessed Lighting, Slider

Kitchen
Lvl null

Flooring - Wood, Pantry, Kitchen Island, Recessed Lighting, Pot Filler Faucet, Wine Chiller

Family Room
Lvl null

Coffered Ceiling(s), Closet/Cabinets - Custom Built, Flooring - Wood, Recessed Lighting, Slider

Primary Bedroom
Lvl null

Bathroom - Full, Cathedral Ceiling(s), Walk-In Closet(s), Flooring - Wood, French Doors, Recessed Lighting, Slider

Bedroom 3
Lvl null

Bathroom - Full, Walk-In Closet(s), Closet/Cabinets - Custom Built, Flooring - Wood

Bedroom 4
Lvl null

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

Bedroom 5
Lvl null

Cathedral Ceiling(s), Closet, Flooring - Wood

Listing Provided By

Listing Agent: Robert Kinlin

Listing Office: Berkshire Hathaway HomeServices Robert Paul Properties

MLS® Number: 73584008