48 Starboard Lane Barnstable — Photo 1 of 41
Recent Drop: $450,000
$11,500,000
Investment Analysis — 48 Starboard Lane
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 0.12% cap rate and $13,272/yr in estimated NOI at the $11,500,000 list price. Adjust every assumption in the calculator below.
Beds
6
Baths
7
SqFt
8,387
Style
Single Family
Built
2026
Newly constructed and ready to enjoy, this exceptional waterfront estate on the Bumps River represents the finest of Cape Cod living. Combining an unrivaled setting with state-of-the-art luxury, the property features a resort-like swimming pool and cabana, a boathouse with a float for non-motorized crafts, and a deeded beach lot on Long Beach. The open floor plan seamlessly flows from a fireplaced living room with coffered ceilings to a gourmet kitchen with a Sub-Zero refrigerator, Wolf range, and Danby natural stone counters. Glass doors line the waterside of the home, opening to an expansive Phoenician Buff stone terrace surrounding a Pebble Tec pool and spa. The first-floor primary boasts 2 walk-in closets and a luxurious bath with a freestanding soaking tub. Four en suite bedrooms, a family room, and an ipe deck occupy the second level, with bonus space above. A bedroom suite over the garage accommodates guests or staff. Located minutes from everything Osterville has to offer.
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 8,387 sq ft principal dwelling). Lot size: 113,256 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
Parking
Interior Specifications
Climate & Utilities
Building & Exterior
Property & Lot
Amenities & Appliances
Gas Water Heater
Neighborhood
Shopping • Tennis Court(s) • Park • Walk/Jog Trails • Golf • Conservation Area
Geography
Floorplan Breakdown
Structural Layout
Master Bedroom
Lvl FirstProperty History
$11,500,000
Was $11,950,000
Sep 1, 2026
MLS® 73531287
$11,950,000
Jun 6, 2026
MLS® 73531287
$1,500,000
Dec 31, 2010
MLS® 71126337
$1,500,000
Aug 20, 2010
MLS® 71126337
Listing Agent: Paul E. Grover
Listing Office: Berkshire Hathaway HomeServices Robert Paul Properties
MLS® Number: 73531287
