Listing Tools

Defined by sweeping water views, expansive grounds, and exceptional outdoor living spaces, 30 Cockachoiset (“Dillon House”) offers a welcoming coastal retreat designed for gathering and entertaining. The open-concept main level features a well-equipped kitchen flowing into a sun-filled breakfast nook and sitting area surrounded by walls of windows overlooking the water. Additional highlights include a living room with fireplace, formal dining room with custom built-ins, screened sunroom, and a first-floor primary suite with fireplace, water views, walk-in closet, and spacious bath. Upstairs are three bedrooms, multiple decks with water vistas, and a third-floor bonus room for additional living or guests. A private family room with fireplace and full bath above the primary suite provides ideal guest accommodations. Moments from Osterville Village, beaches, waterfront dining, and premier marinas. Adjacent property at 12 Cockachoiset Lane is also for sale.

More Info

Basic Information

  • Bedrooms4
  • Mls StatusActive
  • Bathroom5
  • Lot Features Corner Lot, Cleared, Level
  • Road Frontage DescriptionPaved

Tax Information

  • Tax Assessed Value $3,836,300
  • Tax Year 2026
  • Taxes$31,281

Parking

  • Parking Spaces4
  • Covered Spaces 1
  • Garage YN Yes
  • Parking Features Detached, Off Street

Rooms

  • Bathrooms Total Decimal 4.5
  • Bedroom 2 Second
  • Bedroom 3 Second
  • Bedroom 4 Second
  • Dining Room First
  • Family Room Second
  • Full Bath4
  • Half Baths1
  • Kitchen Main, First
  • Living Room First
  • Master Bedroom First

Basic Information

  • List Price$3,900,000
  • MLS Number73513213
  • Modification Date05/09/2026
  • Property SubTypeSingle Family Residence
  • Virtual TourView Tour

Location

  • NeighborhoodOsterville
  • SubdivisionOsterville
  • Address30 Cockachoiset Lane
  • Building Number30
  • CountyBarnstable
  • StateMA
  • StreetCockachoiset Lane
  • TownBarnstable
  • Zip02655

Building

  • Building Area Units Square Feet
  • Door Features French Doors
  • FireplaceYes
  • Fireplace Features Family Room, Living Room
  • Fireplaces Total 3
  • FoundationBlock
  • Garage Spaces1
  • Patio And Porch Features Screened, Deck, Patio
  • Property StyleContemporary
  • Rooms11
  • Year Built1890
  • Year Built Details Actual, Renovated Since
  • Year Built Source Public Records

Property

  • Acreage0.6

Interior

  • Flooring Wood, Flooring - Wood
  • Interior Features Sitting Room, Sun Room, Bonus Room

Exterior

  • Exterior Features
    • Deck
    • Fenced Yard
    • Outdoor Shower
    • Patio
    • Porch - Screened
    • Professional Landscaping
  • Fencing Fenced
  • RoofWood

Utilities

  • Cooling Central Air
  • Cooling YN Yes
  • Heat SystemYes
  • Heating Central, Natural Gas
  • Sewer Private Sewer
  • Water Source Public

Property Information

  • Square Feet4,241
  • Building Area Source Public Records
  • Living Area 4,241
  • Lot Size Square Feet 26,136
  • Lot Size Units Acres
  • View YN Yes

Amenities

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

Water Body

  • Miles to Beach2
  • Waterfront Features Bay,1 to 2 Mile To Beach, Beach Ownership(Public)

Legal

  • ZoningRES

Other

  • Date Listed05/06/2026
  • Farm Land Area Units Square Feet
  • View Count1

Map Location

Driving Directions

Listed by Robert Kinlin of Berkshire Hathaway HomeServices Robert Paul Properties

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

I agree to receive marketing and customer service calls and text messages from Castles Unlimited. To opt out, you can reply 'stop' at any time or click the unsubscribe link in the emails. Consent is not a condition of purchase. Msg/data rates may apply. Msg frequency varies. Privacy Policy.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

$

Do not fill in this field:

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.