$3,900,000
Osterville, MA 02655
MLS# 22601972
4 beds | 5 baths | 4241 sqft
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Property Description
Defined by its water views, generous grounds, and multiple outdoor living spaces, 30 Cockachoiset (''Dillon House'') offers a welcoming coastal retreat designed for gathering, entertaining, and enjoying life by the water. The main level is thoughtfully designed with an open floor plan anchored by a well-equipped kitchen that flows seamlessly into a sun-filled breakfast nook and sitting area, framed by walls of windows overlooking the water. Additional highlights include a living room with fireplace, formal dining room with custom built-ins, and a screened sunroom that invites indoor-outdoor living. The first-floor primary suite offers a private retreat with its own fireplace, water views, walk-in closet, and a spacious bath. Upstairs, three bedrooms and multiple decks capture water vistas, while a third-floor bonus room provides flexible space for additional living or guests. A separate family room with fireplace and full bath, privately situated above the primary suite, offers an ideal accommodation for extended family or visitors. Ideally situated alongside some of Osterville's premier boating facilities-including Nauticus Marina, Crosby Yacht Yard, and Oyster Harbors Marine-this
Details
Maps
Documents
Contract Info
List Price/SqFt: 919.59
Status: Active
Original List Price: 3900000
List Price: $3,900,000
Current Price: $3,900,000
List Date: 2026-05-05
Legal and Taxes
Town: Barnstable
Village: Osterville
Estimated Annual Taxes: 31281
Building Assessments: 1713300
Other Assessments: 0
Total Assessment: 3836300
Flood Ins Required: Yes: verify w/insurance agent
Lead Base Paint: Unknown
Mass Use Code: 101 - Residential, single family
Nitrogen Sensitive Area: Yes
Street #: 30
Street Name: Cockachoiset
Street Suffix: Lane
County: Barnstable
State: MA
Zip Code: 02655
Tax ID: OSTE M:116 L:130
Tax Year: 2026
General Property Info
Region: Mid-Cape
School District: Barnstable
Zoning: Rc;Mb-
Property Sub-Type: Single Family Residence
Renovated: Yes
Renovated Comments: Remodel, Roof
Stories: 2
Total Rooms: 11
Field Card SqFt: 4241
Basement: No
Baths - Half: 1
Private Dock: No
Private Pool: No
Lot Size SqFt: 26136
Leased Land: No
Lot Size Source: Assessor
Acres: 0.6
Garage: Yes
# of Cars: 1
# of Parking Spaces: 3
Year Round: Yes
Separate Living Qtrs: No
Golf Course Front: No
Golf Course View: No
Waterfront: No
Waterview: Yes
Water Body View: North Bay
Waterview Type: Bay/Harbor
Miles to Beach: 1 to 2
Mi. to Beach Comments: Dowses Beach
Fireplace: Yes
# Fireplaces: 3
Property Includes Recording Devices: No
Year Built: 1890
Total Finished Space: 4241
Bedrooms - Total: 4
Baths - Full: 4
Baths - Total: 5
Remarks & Misc
Public Remarks: Defined by its water views, generous grounds, and multiple outdoor living spaces, 30 Cockachoiset (''Dillon House'') offers a welcoming coastal retreat designed for gathering, entertaining, and enjoying life by the water. The main level is thoughtfully designed with an open floor plan anchored by a well-equipped kitchen that flows seamlessly into a sun-filled breakfast nook and sitting area, framed by walls of windows overlooking the water. Additional highlights include a living room with fireplace, formal dining room with custom built-ins, and a screened sunroom that invites indoor-outdoor living. The first-floor primary suite offers a private retreat with its own fireplace, water views, walk-in closet, and a spacious bath. Upstairs, three bedrooms and multiple decks capture water vistas, while a third-floor bonus room provides flexible space for additional living or guests. A separate family room with fireplace and full bath, privately situated above the primary suite, offers an ideal accommodation for extended family or visitors. Ideally situated alongside some of Osterville's premier boating facilities-including Nauticus Marina, Crosby Yacht Yard, and Oyster Harbors Marine-this
Directions to Property: Bridge Street to Cockachoiset Lane
Street Description
Paved: 1
Private: 1
Special Listing Cond
None: 1
Lot Features
Cleared: 1
Level: 1
Views: 1
Year Built Desc
Actual: 1
Parking Features
Gravel: 1
Off Street: 1
Architectural Style
Other: 1
Garage Description
Detached: 1
Garage Door Opener: 1
Neighborhood Amen
Marina: 1
Foundation Details
Block: 1
Convenient To
Golf Course: 1
House of Worship: 1
In Town Location: 1
Marina: 1
School: 1
Shopping: 1
Floors
Wood: 1
Sewer
Private Sewer: 1
Fencing
Partial: 1
Roof Description
Shingle: 1
Siding Description
Shingle: 1
Primary Bedroom
Primary Bedroom Level: First Floor
Closet: 1
Flooring: Wood
Private Full Bath: 1
Special Door Access: French
View: 1
Walk-in Closet: 1
Heating
Forced Air: 1
Bedroom 2
Bedroom 2 Level: Second Floor
Flooring: Wood
View: 1
Walk-in Closet: 1
Cooling
Central Air: 1
Bedroom 3
Bedroom 3 Level: Second Floor
Flooring: Wood
Walk-in Closet: 1
Fuel Type
Natural Gas: 1
Bedroom 4
Bedroom 4 Level: Second Floor
Balcony: 1
Built-Ins: 1
Closet: 1
Flooring: Wood
Private Full Bath: 1
Special Door Access: French
View: 1
Water
Public: 1
Hot Water
Water Heater: 1
Hot Water Source
Electric: 1
Living Room
Living Room Level: First Floor
Flooring: Wood
Dining Room
Dining Room Level: First Floor
Built-Ins: 1
Flooring: Wood
View: 1
Kitchen
Pantry: 1
Kitchen Level: First Floor
Built-Ins: 1
Flooring: Wood
View: 1
Other Room 1
Room Type: Sitting Room
Level: Third Floor
Exterior Features
Outdoor Shower: 1
Private Yard: 1
Other Room 2
Room Type: Family Room
Level: Second Floor
Interior Features
Electric Dryer Hookup: 1
Pantry: 1
Walk-In Closet(s): 1
Washer Hookup: 1
Patio And Porch Features
Deck: 1
Patio: 1
Screened Porch: 1
DPR Eligibility
DPR Eligible: No
Property Features
Street Description: Paved; Private
Special Listing Cond: None
Architectural Style: Other
Year Built Desc: Actual
Foundation Details: Block
Lot Features: Cleared; Level
Neighborhood Amen: Marina
Garage Description: Detached; Garage Door Opener
Parking Features: Gravel; Off Street
Convenient To: Golf Course; House of Worship; In Town Location; Marina; School; Shopping
Primary Bedroom: Closet; Private Full Bath; View; Walk-in Closet
Bedroom 2: View; Walk-in Closet
Bedroom 3: Walk-in Closet
Bedroom 4: Balcony; Built-Ins; Closet; Private Full Bath; View
Dining Room: Built-Ins; View
Kitchen: Built-Ins; Pantry; View
Floors: Wood
Interior Features: Electric Dryer Hookup; Pantry; Walk-In Closet(s); Washer Hookup
Patio And Porch Features: Deck; Patio; Screened Porch
Exterior Features: Outdoor Shower; Private Yard
Fencing: Partial
Roof Description: Shingle
Siding Description: Shingle
Sewer: Private Sewer
Heating: Forced Air
Cooling: Central Air
Fuel Type: Natural Gas
Water: Public
Hot Water: Water Heater
Hot Water Source: Electric
Supplements
location is particularly appealing for boating enthusiasts, offering convenient access to full-service docking and care. Just moments from Osterville Village, beaches, and waterfront dining, the property captures the essence of Cape Cod living in a highly sought-after setting. Also available for sale is the abutting property at 12 Cockachoiset Lane (MLS 22601973), presenting a unique opportunity to establish a flexible coastal compound, with a proven track record of premium weekly rentals and hosting memorable private events.
Home Inspection Disclosure 
Listing Office: Berkshire Hathaway HomeServices Robert Paul Properties
Listing Agent: Robert B Kinlin
Last Updated: May - 06 - 2026
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rkinlin@robertpaul.com