
43 Monadnock Road Wellesley — Photo 1 of 42
Recent Drop: $1,000,000
$4,995,000
Investment Analysis — 43 Monadnock Road
Wellesley, MA 02481 — Peirce Estates
Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 6-bedroom in 02481 carries an estimated $5,340/mo in gross rent — about a 0.16% cap rate and $7,859/yr in estimated NOI at the $4,995,000 list price. Adjust every assumption in the calculator below.
Beds
6
Baths
5
SqFt
7,738
Style
Single Family
Built
1937
One of Wellelsey's signature properties! Rarely available 18 room estate w/ 4 floors of living situated in the heart of Peirce Estates. Stunning foyer w/ curved staircase. Sunken living room w/ coffered ceilings & stone fireplace. Oversized dining room w/ bay window plus large butler's pantry. Kitchen w/ stainless appliances, center island & breakfast nook. One of a kind family room filled w/ built-in bookcases, coffered ceiling, fireplace & wet bar perfect for entertaining & everyday living. Wood panel den/office. Main bedroom w/ 2 walk-in closets & fireplace. 3 additional beds & 2 baths. Large sitting room/bonus room w/ fireplace completes 2nd floor. Third floor w/ 2 more beds & bath plus another large bonus room with built-in bunk beds. Lower level w/ playroom, game room & bar room. Over 7700 sq ft with almost one acre of privacy abutting the reservoir. Fieldstone patio. 400 amp service. 3 car garage & steel beam construction. Your chance to own one of Wellesley's most iconic homes!
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 7,738 sq ft principal dwelling). Lot size: 42,752 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
Geography
Floorplan Breakdown
Structural Layout
Living Room
Lvl First27 x 17
Coffered Ceiling(s), Window(s) - Picture, Sunken
Dining Room
Lvl First15 x 18
Window(s) - Bay/Bow/Box
Kitchen
Lvl First28 x 15
Dining Area, Pantry, Kitchen Island
Family Room
Lvl First29 x 22
Coffered Ceiling(s), Closet/Cabinets - Custom Built, Wet Bar, Sunken
Primary Bedroom
Lvl Second23 x 17
Bathroom - Full, Walk-In Closet(s), Wainscoting
Bedroom 2
Lvl Second15 x 16
Bedroom 3
Lvl Second14 x 13
Closet
Bedroom 4
Lvl Second12 x 14
Closet
Bedroom 5
Lvl Third13 x 22
Bathroom - Full, Walk-In Closet(s)
Bathroom 1
Lvl FirstBathroom - Half
Bathroom 2
Lvl ThirdBathroom - Full
Bathroom 3
Lvl BasementBathroom - Half
Property History
$4,995,000
Was $5,995,000
Aug 21, 2026
MLS® 73545332
$5,995,000
Jul 6, 2026
MLS® 73545332
Listing Agent: Melissa Dailey
Listing Office: Coldwell Banker Realty - Wellesley
MLS® Number: 73545332









