491 Main Street Acton — Photo 1 of 41
Recent Drop: $350,000
$1,685,000
Investment Analysis — 491 Main Street
Acton, MA 01720
Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 4-bedroom in 01720 carries an estimated $3,470/mo in gross rent — about a 0.57% cap rate and $9,533/yr in estimated NOI at the $1,685,000 list price. Adjust every assumption in the calculator below.
Beds
4
Baths
4.5
SqFt
5,012
Style
Single Family
Built
1806
This SPECTACULAR NEW ENGLAND RESIDENCE has been RENOVATED TO PERFECTION! Boasting OVER 5,000 S.F. OF CURATED LIVING SPACE, this home offers LUXURY LIVING IN THE HEART OF ACTON CENTER! Situated far back from the main road with ample parking & a 3-CAR ATTACHED GARAGE! The grand 1ST FLOOR & drenched in natural light. THIS DESIGNER MASTERPIECE IS A TRUE FAMILY HOME & features wood floors, recessed lights, built-ins & bookcases throughout! A perfect & stylish family room offers glass doors that lead to the backyard & patio. The kitchen is elegant, offering a casual dining area, island & SS WOLF APPLIANCES! This beautiful area also offers a galley office with built-in storage, DESK & WET-BAR! Original house stuns with large windows & wide pine floors! A home gym addition was created by the current owners. The 2nd floor offers 3 bedrooms plus a LUXURIOUS PRIMARY SUITE with ensuite bath & SAUNA! Large recreation area above the garage! Close to MEMORIAL LIBRARY & ACTON ARBORETUM! ONE-OF-A-KIND!
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 5,012 sq ft principal dwelling). Lot size: 21,780 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 • Range • Dishwasher • Refrigerator
Neighborhood
Walk/Jog Trails
Geography
Floorplan Breakdown
Structural Layout
Living Room
Lvl First19 x 14
Flooring - Wood
Dining Room
Lvl First14 x 13
Flooring - Hardwood, French Doors, Lighting - Pendant
Kitchen
Lvl First18 x 13
Flooring - Hardwood, Dining Area, Kitchen Island, Exterior Access, Recessed Lighting
Office
Lvl First9 x 8
Fireplace, Flooring - Wood
Family Room
Lvl First24 x 17
Flooring - Hardwood, Recessed Lighting
Master Bedroom
Lvl Second19 x 16
Bathroom - Full, Walk-In Closet(s), Flooring - Wood, Recessed Lighting
Bedroom 2
Lvl Second19 x 13
Bedroom 3
Lvl Second22 x 14
Fireplace, Closet, Flooring - Hardwood, Lighting - Sconce, Lighting - Pendant
Bathroom 1
Lvl First7 x 3
Bathroom - Half, Flooring - Stone/Ceramic Tile, Lighting - Sconce, Pedestal Sink
Bathroom 2
Lvl Second9 x 5
Bathroom - Full, Bathroom - Tiled With Shower Stall, Flooring - Stone/Ceramic Tile, Lighting - Sconce
Bathroom 3
Lvl Second9 x 7
Bathroom - Full, Bathroom - Tiled With Tub & Shower, Flooring - Stone/Ceramic Tile, Lighting - Sconce
Property History
$1,685,000
Was $2,035,000
Apr 27, 2026
MLS® 73344415
$2,035,000
Mar 12, 2025
MLS® 73344415
Listing Agent: The Zur Attias Team
Listing Office: The Attias Group, LLC
MLS® Number: 73344415
