Single Family Residence at 231 Carnegie Harbor Drive, Portsmouth
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$6,300,000

231 Carnegie Harbor Drive
Portsmouth, RI 02871
Listed by Joseph Costa
Bedrooms
5
Bathrooms
7.5
Living area
7,215 sqft
Year built
2006

About this home

An unparalleled offering within Carnegie Harbor: a beautifully renovated residence paired with the community’s last remaining buildable lot, creating a one-of-a-kind private estate in one of RI’s most exclusive gated waterfront communities. The only opportunity of its kind, combining a turnkey luxury residence, adjoining one-acre parcel, privacy, and sweeping Narragansett Bay views. Timeless architecture and sophisticated modern finishes define the residence, with expansive living spaces capturing spectacular water views and sunsets. Set just off the shoreline, the home offers panoramic Narragansett Bay views with added privacy and protection. Generous interiors suit elegant entertaining and everyday living, including a finished lower level ideal for recreation, guests, or extended stays. The grounds feature a professionally designed putting green, chipping area, and practice bunker. The adjoining landscaped one-acre parcel, the last buildable lot in Carnegie Harbor, offers flexibility to expand the estate, add a guest residence or amenities, or preserve the privacy and open space. Residents enjoy direct gated access to Aquidneck Marina, with the Aquidneck Club golf course moments away. Downtown Newport, world-class sailing, beaches are minutes away. For the buyer seeking something that cannot be replicated, this exceptional property offers the scale, privacy, views, and flexibility of a private Newport-area compound, an estate opportunity without equal in Carnegie Harbor.

Highlights

Fireplace

Property details

MLS #
1424943
Property type
Single Family Residence
Subdivision
Aquidneck Club
Status
Active
Days on market
N/A
On market date
October 1, 2026
Stories
N/A
Total bathrooms
7.5
Garage spaces
2
Parking spaces
8
Lot size
1.67 acres
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Nearby schools

Within 10 miles. School directory data from the National Center for Education Statistics (NCES), accessed via the Urban Institute Education Data API. Local Score is calculated by INNOVATE Real Estate; where a state rating is shown, it comes from that state's own official school report card (e.g. NC Dept. of Public Instruction, SC Report Card).

Elementary
Howard Hathaway School
1.35 mi away · Grades 0-4
Nearest school -- attendance-zone data not available here
3.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
416
Student:teacher ratio
15.4:1
District
Portsmouth
Middle
Portsmouth Middle School
4.27 mi away · Grades 5-8
Nearest school -- attendance-zone data not available here
4.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
635
Student:teacher ratio
12.2:1
District
Portsmouth
High
Portsmouth High School
1.12 mi away · Grades 9-12
Nearest school -- attendance-zone data not available here
5.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
824
Student:teacher ratio
11.8:1
District
Portsmouth

Walkability

Blended score for Portsmouth's center, calculated by INNOVATE Real Estate from two sources: the EPA's National Walkability Index (street network, transit, land-use mix) and Google Places amenity data (what's actually reachable on foot from this point). 60% EPA National Walkability Index + 40% nearby-amenity density (Google Places).

63
Walkable
out of 100
EPA National Walkability Index
14.8 / 20 -- Above average walkable
Google Places amenity density
45 / 100
Restaurants & cafes0
Grocery stores0
Parks5
Schools5
Transit stops12
Pharmacies1

Market position

How this listing compares to current activity in Portsmouth, from live MLS data.

On the market 0 days -- 75 fewer days than Portsmouth's current average of 75 days.
For reference, the median list price across 240 active listings in Portsmouth right now is $749,000.

Mortgage calculator

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Est. monthly payment
$38,089/mo
$1,260,000 down
$5,040,000 loan
Principal & interest$32,689
Property tax (est.)$5,250
Home insurance (est.)$150

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Data source: Listing information provided by Rhode Island Association of REALTORS via Trestle/CoreLogic. Last updated 1 days ago.

Information herein deemed reliable but not guaranteed; all measurements, school assignments, HOA fees, taxes, and feature lists are approximate and should be independently verified. Equal Housing Opportunity.