Active
485 Days on market
645 S Orleans Orleans — Photo 1 of 42

645 S Orleans Orleans — Photo 1 of 42

Recent Drop: $1,250,000

$3,950,000
$2,700,000

$2,700,000

645 S Orleans, Orleans, MA 02653

Orleans, MA 02653

Beds

7

Baths

6.5

SqFt

3,549

Style

Single Family

Built

1930

For the first time in generations, this landmark Pleasant Bay compound—anchored by the iconic "Topside" main residence and the charming two-bedroom "Boathouse"—is offered as a rare, generational waterfront estate, a site long cherished by those who have called it home. With a deep-water dock, moorings, and direct access to the bay, the property delivers a front-row seat to the rhythms of Pleasant Bay and boundless recreation. Both homes enjoy sweeping 270-degree views across the water to Eastward Ho, the Chatham Yacht Club, and the Atlantic beyond. Thoughtfully sited by its original architect to capture the light and water at every turn, "Topside" offers 5 bedrooms and 4.5 baths with timeless coastal character and spaces designed for gathering, while the "Boathouse" sits just above the shoreline, featuring 2 bedrooms, 1 bathroom, and its own deck for quiet moments by the sea. A secluded garden patio and broad waterfront lawn offer a blend of intimacy and scale. With a strong rental history and potential for expansion or personalization, this is a lifestyle property that invites multigenerational living, savvy investment, or a private retreat. A once-in-a-lifetime opportunity to own one of Cape Cod's most storied, landmark waterfront settings.

Market Value Analysis

This Property
Size (SqFt) →Price →
This Property$761/sqft
Local Avg (Orleans)$774/sqft
2% BelowMarket Average

* Analysis is based on 15 actively listed and recently sold comparable properties strictly within Orleans, MA.

Property Details

Financials

Original Price$3,950,000
Annual Taxes$10,740

Parking

Garage0
Off-Street4

Interior Specifications

Total Rooms12
Fireplaces2
Flooring--
BasementNone

Climate & Utilities

HeatingBaseboard
CoolingWindow Unit(s)
WaterPublic
SewerPrivate Sewer

Building & Exterior

Construction--
Roof--
FoundationBlock
Zoning96-23-0

Property & Lot

Acres0.25
SqFt Lot10,890
Lot Features--

Geography

Property History

Price Drop
$2,700,000

Was $3,495,000

Jan 31, 2026

MLS® 73373131

Price Drop
$3,495,000

Was $3,950,000

Sep 4, 2025

MLS® 73373131

Listed
$3,950,000

May 12, 2025

MLS® 73373131

Expired
$2,995,000

Mar 24, 2025

MLS® 73295426

Listed
$2,995,000

Sep 26, 2024

MLS® 73295426

Population

6,443

U.S. Census Bureau, ACS 2024 5-Year Estimates (B01003)

Median Household Income

$103K

U.S. Census Bureau, ACS 2024 5-Year Estimates (B19013)

Renter-Occupied Homes

19.0%

U.S. Census Bureau, ACS 2024 5-Year Estimates (B25003)

New Construction Permits — Barnstable County

513 housing units permitted in the last 12 months (-50% vs the prior 12 months) — 128 in 5+ unit buildings

U.S. Census Bureau, Building Permits Survey (through Jun '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 3,549 sq ft principal dwelling). Lot size: 10,890 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 Provided By

Listing Agent: Guthrie Schofield Group

Listing Office: Berkshire Hathaway HomeServices Robert Paul Properties

MLS® Number: 73373131

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