
9 Hi River Road Barnstable — Photo 1 of 42
$3,950,000
9 Hi River Road, Barnstable, MA 02648
Barnstable, MA 02648 — Marstons Mills
Beds
4
Baths
4
SqFt
7,080
Style
Single Family
Built
2000
Casa Blanca Farm - An Iconic Cape Cod Estate. Beyond the stately columned entrance and winding cobblestone drive, this extraordinary estate unfolds across nearly five breathtaking acres. Masterfully renovated and meticulously redesigned, the residence blends timeless architecture with exceptional craftsmanship and sophisticated design. Sun-filled interiors showcase custom millwork, designer lighting, exquisite finishes and beautifully proportioned spaces, anchored by a spectacular chef's kitchen designed for effortless entertaining. Outside, a private resort awaits with a gunite pool, built-in spa, elegant white limestone terraces, expansive patios and sweeping manicured grounds. The completely rebuilt lower level is an entertainer's dream, featuring a second full kitchen, custom bar, expansive great room, private cigar lounge, game room and state-of-the-art theater. Minutes from Osterville Village, golf, boating and beaches, Casa Blanca Farm is a remarkable private estate where luxury, privacy and Cape Cod living come together beautifully.
Key facts
It was listed on September 10, 2026. The annual property taxes are $14,671 (2026 tax year). It sits on a 4.96-acre (216,058 sq ft) lot.
Market Value Analysis
* Analysis is based on 24 actively listed and recently sold comparable properties strictly within Barnstable, MA.
Property Details
Financials
Parking
Interior Specifications
Climate & Utilities
Building & Exterior
Property & Lot
Amenities & Appliances
Gas Water Heater
Neighborhood
Shopping • Walk/Jog Trails • Golf • Conservation Area • Marina • Private School
Geography
Questions about this home
When was 9 Hi River Road, Barnstable listed?
9 Hi River Road, Barnstable was listed on September 10, 2026.
Has the price of 9 Hi River Road, Barnstable changed?
The price hasn't changed since it was listed at $3,950,000.
What are the property taxes for 9 Hi River Road, Barnstable?
The annual property taxes for 9 Hi River Road, Barnstable are $14,671 (2026 tax year).
How big is the lot at 9 Hi River Road, Barnstable?
9 Hi River Road, Barnstable sits on a 4.96-acre (216,058 sq ft) lot.
What is the status of 9 Hi River Road, Barnstable?
9 Hi River Road, Barnstable is actively listed for sale.
Population
7,968
U.S. Census Bureau, ACS 2024 5-Year Estimates (B01003)
Median Household Income
$130K
U.S. Census Bureau, ACS 2024 5-Year Estimates (B19013)
Renter-Occupied Homes
2.5%
U.S. Census Bureau, ACS 2024 5-Year Estimates (B25003)
New Construction Permits — Barnstable County
505 housing units permitted in the last 12 months (-51% vs the prior 12 months) — 123 in 5+ unit buildings
U.S. Census Bureau, Building Permits Survey (through Jul '26)
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 7,080 sq ft principal dwelling). Lot size: 216,058 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.
Listing Agent: Livia Freitas Monteforte
Listing Office: Compass
MLS® Number: 73575553







