
128 Watson Rd Belmont — Photo 1 of 32
$1,995,000
Investment Analysis — 128 Watson Rd
Belmont, MA 02478 — Payson Park
Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 4-bedroom in 02478 carries an estimated $4,420/mo in gross rent — about a 1.27% cap rate and $25,378/yr in estimated NOI at the $1,995,000 list price. Adjust every assumption in the calculator below.
Beds
4
Baths
3.5
SqFt
2,756
Style
Single Family
Built
1925
Newly renovated and thoughtfully expanded, this move-in-ready Belmont Colonial pairs timeless character with a fresh, modern interior and exceptional flexibility. Sun-filled living spaces feature refinished hardwood floors, updated electrical and plumbing, two new central cooling/air-handler systems, and a stunning redesigned kitchen with quartz countertops, stainless-steel appliances, gas cooking, ample cabinetry, and a spacious island ideal for everyday living and entertaining. The home offers 4 bedrooms and 3.5 beautifully updated baths, including an impressive expanded top-floor suite with a large bedroom, walk-in closet, and private full bath—perfect as a primary retreat, guest suite, or home office. The finished lower level adds valuable bonus space for a media room, gym, playroom, or additional workspace. A bright enclosed sunroom/mudroom, generous storage, landscaped yard, and detached 2-car garage complete the package. Ideally located near schools, parks, Belmont Center, Cambridge, and Boston, this is a rare opportunity to enjoy a fully updated home with classic Belmont charm and space to adapt to every stage of life. Easy to show.
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 2,756 sq ft principal dwelling). Lot size: 6,080 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.
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Amenities & Appliances
Gas Water Heater • Range • Dishwasher • Disposal • Refrigerator • Washer • Dryer
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Public Transportation • Shopping • Park • Public School • Sidewalks
Geography
Floorplan Breakdown
Structural Layout
Living Room
Lvl First23 x 12
Flooring - Wood, Open Floorplan, Recessed Lighting, Crown Molding
Dining Room
Lvl First13 x 13
Kitchen
Lvl First17 x 11
Flooring - Hardwood, Window(s) - Picture, Open Floorplan, Paints & Finishes - Zero VOC, Recessed Lighting, Remodeled, Gas Stove, Lighting - Pendant
Family Room
Lvl First15 x 10
Beamed Ceilings, Flooring - Wood, Open Floorplan, Lighting - Overhead
Master Bedroom
Lvl Second18 x 12
Bedroom 2
Lvl Second13 x 10
Bedroom 3
Lvl Second13 x 10
Bedroom 4
Lvl Third15 x 14
Bathroom 1
Lvl SecondBathroom 2
Lvl SecondBathroom 3
Lvl SecondProperty History
$1,995,000
Sep 2, 2026
MLS® 73571428
$1,995,000
Aug 31, 2026
MLS® 73533015
$1,995,000
Jun 10, 2026
MLS® 73533015
$1,450,000
Oct 8, 2025
MLS® 73419885
$1,395,000
Aug 19, 2025
MLS® 73419885
Listing Agent: Yu Liu
Listing Office: Zhensight Realty LLC
MLS® Number: 73571428
