15 Twenty First St N Edgartown — Photo 1 of 42
Recent Drop: $360,000
$2,590,000
Investment Analysis — 15 Twenty First St N
Edgartown, MA 02539 — Ocean Heights
Based on HUD Small Area Fair Market Rent for Dukes County, MA, a 4-bedroom in 02539 carries an estimated $3,430/mo in gross rent — about a 0.98% cap rate and $25,403/yr in estimated NOI at the $2,590,000 list price. Adjust every assumption in the calculator below.
Beds
4
Baths
6.5
SqFt
4,530
Style
Single Family
Built
1993
Located on a quiet street just minutes from Edgartown Village, this versatile compound offers privacy, flexibility, and close proximity to the Island’s best outdoor amenities. Set on over half an acre, the property includes a main house and detached guest house with separate driveways and mature landscaping.The main home features an open kitchen and dining area, sunken living room, and three bedrooms, plus a finished lower level for added living space. Outdoor highlights include a deck, heated pool, patio, pool house, and outdoor shower.The guest house was built in 2011 and provides additional living space, multiple baths, a garage, and its own private setting. Near conservation land and water access, and just 1.5 miles to town, this property offers strong rental potential and exceptional versatility.
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 4,530 sq ft principal dwelling). Lot size: 23,087 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
Neighborhood
Walk/Jog Trails • Bike Path
Geography
Property History
$2,590,000
Was $2,675,000
Sep 3, 2026
MLS® 73523165
$2,675,000
Was $2,950,000
Jul 21, 2026
MLS® 73523165
$2,950,000
May 23, 2026
MLS® 73523165
Listing Agent: Jen O'Hanlon
Listing Office: Compass
MLS® Number: 73523165
