
51 Hosmer St Acton — Photo 1 of 42
Recent Drop: $10,100
$839,900
Investment Analysis — 51 Hosmer St
Acton, MA 01720 — Robbins Park
Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 3-bedroom in 01720 carries an estimated $3,140/mo in gross rent — about a 1.95% cap rate and $16,356/yr in estimated NOI at the $839,900 list price. Adjust every assumption in the calculator below.
Beds
3
Baths
2
SqFt
1,960
Style
Single Family
Built
1991
SELLER INCENTIVE: Seller is offering a credit equal to 1% of the purchase price toward buyer's closing costs, subject to lender approval! Beautifully updated, energy-efficient, and truly move-in ready, this split-entry home lets you enjoy your new home from day one. Major improvements include a new SEPTIC system (2020), ROOF and SIDING (2021), new BOILER and four MINI-SPLIT heat pump/A/C units (2022), kitchen renovation (2023), updated appliances and beautifully renovated bathrooms (2024), plus many additional improvements. The heat pumps provide efficient heating and cooling, while newer siding and added insulation contribute to the home's energy efficiency. The bright main level features a fireplaced living room, separate dining room, and updated eat-in kitchen with granite countertops, newer stainless steel appliances, generous cabinet and counter space, and a window overlooking the backyard. Three well-sized bedrooms and an updated full bath complete this level. The walk-out lower level offers a spacious family room with a second fireplace, NEW FULL BATH with an OVERSIZED TILED SHOWER, and flexible open space for a home office, study, exercise area, or playroom. This level also offers an excellent option for a private PRIMARY SUITE with its own full bathroom. One of the home's best surprises is the backyard. Tucked behind the house and surrounded by mature trees, this private, level setting is perfect for entertaining, gardening, gathering around a fire pit, or simply relaxing. The east-facing orientation brings beautiful morning light, while the backyard enjoys sunny afternoons and evenings. Enjoy an easy walk to Acton Memorial Library, Acton Center, shopping, restaurants, and community events. Close to Acton-Boxborough schools, Bruce Freeman Rail Trail, Acton Arboretum, commuter rail to Boston, and major routes. Move-in ready, extensively improved, energy-efficient, and now with a 1% seller credit toward buyer's closing costs!
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 1,960 sq ft principal dwelling). Lot size: 30,154 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.
Immersive Experience
Property Details
Financials
Parking
Interior Specifications
Climate & Utilities
Building & Exterior
Property & Lot
Amenities & Appliances
Water Heater • Microwave • ENERGY STAR Qualified Refrigerator • ENERGY STAR Qualified Dryer • ENERGY STAR Qualified Dishwasher • ENERGY STAR Qualified Washer • Range
Neighborhood
Public Transportation • Shopping • Pool • Park • Walk/Jog Trails • Golf
Geography
Floorplan Breakdown
Structural Layout
Living Room
Lvl Main,Second16.416666666 x 15.166666666
Flooring - Laminate, Window(s) - Picture, Open Floorplan
Dining Room
Lvl Main,Second11.416666666 x 11.416666666
Flooring - Laminate, Deck - Exterior, Exterior Access, Slider, Lighting - Overhead
Kitchen
Lvl Main,Second12.25 x 11.416666666
Flooring - Vinyl, Dining Area, Countertops - Stone/Granite/Solid, Remodeled
Office
Lvl First10.166666666 x 12.583333333
Flooring - Wall to Wall Carpet, Open Floor Plan
Family Room
Lvl First16.166666666 x 12.083333333
Flooring - Wall to Wall Carpet, Open Floorplan, Recessed Lighting
Primary Bedroom
Lvl Second13.75 x 11.416666666
Closet, Flooring - Laminate
Bedroom 2
Lvl Second13 x 11.75
Bedroom 3
Lvl Second10.416666666 x 11.75
Closet, Flooring - Laminate
Bathroom 1
Lvl Main,Second8.666666666 x 11.416666666
Bathroom - Full, Bathroom - Tiled With Tub & Shower, Closet - Linen, Flooring - Laminate, Countertops - Stone/Granite/Solid, Remodeled
Bathroom 2
Lvl First9.083333333 x 7.5
Bathroom - Full, Bathroom - Tiled With Shower Stall, Closet, Flooring - Vinyl, Countertops - Stone/Granite/Solid
Property History
$4,400
Aug 18, 2026
MLS® 73565123
$839,900
Was $850,000
Aug 6, 2026
MLS® 73550111
$850,000
Jul 15, 2026
MLS® 73550111
Listing Agent: Elena Beldiya Petrov
Listing Office: Keller Williams Realty Boston Northwest
MLS® Number: 73550111








