
820 Beaver St Waltham — Photo 1 of 33
Recent Drop: $30,000
$849,000
Investment Analysis — 820 Beaver St
Waltham, MA 02452
Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 4-bedroom in 02452 carries an estimated $4,240/mo in gross rent — about a 3.72% cap rate and $31,550/yr in estimated NOI at the $849,000 list price. Adjust every assumption in the calculator below.
Beds
4
Baths
1.5
SqFt
1,844
Style
Single Family
Built
1930
This 4-bedroom Colonial offers a wonderful blend of timeless character & modern convenience in a desirable Waltham location. Less than a mile from the commuter rail & convenient to Bentley University, shopping, dining & major routes. A semi-circular driveway extends to additional parking along the side & rear of the home. Inside, high ceilings, hardwood floors & elegant French doors add classic appeal. The updated kitchen flows to a formal dining room w/charming built-in hutch, while the front-to-back living room features a handsome fireplace & opens to flexible bonus space ideal for a home office or playroom. Updated baths & spacious rooms enhance the living space, while the 3rd-floor walk-up attic & walk-out basement offer exceptional storage & future finishing potential. Outside, a sprawling backyard, deck & patio provide plenty of space for outdoor entertaining. A versatile property with space, location & investment potential. Showings start this weekend!
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 1,844 sq ft principal dwelling). Lot size: 10,014 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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Property Details
Financials
Parking
Interior Specifications
Climate & Utilities
Building & Exterior
Property & Lot
Amenities & Appliances
Gas Water Heater • Water Heater • Range • Dishwasher • Microwave • Refrigerator • Washer • Dryer
Neighborhood
Public Transportation • Shopping • Park • Walk/Jog Trails • Golf • Medical Facility
Geography
Floorplan Breakdown
Structural Layout
Living Room
Lvl First25 x 13
Flooring - Hardwood, French Doors, Lighting - Sconce
Dining Room
Lvl First12 x 13
Closet/Cabinets - Custom Built, Flooring - Hardwood, French Doors, Chair Rail, Lighting - Overhead
Kitchen
Lvl First11 x 14
Flooring - Stone/Ceramic Tile, Countertops - Stone/Granite/Solid, Breakfast Bar / Nook, Cabinets - Upgraded, Exterior Access, Recessed Lighting, Stainless Steel Appliances
Office
Lvl First17 x 10
Ceiling Fan(s), Flooring - Hardwood, French Doors
Primary Bedroom
Lvl Second13 x 11
Ceiling Fan(s), Closet, Flooring - Hardwood
Bedroom 2
Lvl Second12 x 11
Bedroom 3
Lvl Second11 x 11
Ceiling Fan(s), Closet, Flooring - Hardwood
Bedroom 4
Lvl Second11 x 11
Ceiling Fan(s), Closet, Flooring - Hardwood
Bathroom 1
Lvl FirstBathroom - Half, Flooring - Stone/Ceramic Tile, Pedestal Sink
Bathroom 2
Lvl SecondBathroom - Full, Bathroom - Tiled With Tub & Shower, Flooring - Stone/Ceramic Tile
Property History
$849,000
Was $879,000
Sep 1, 2026
MLS® 73568899
$879,000
Aug 27, 2026
MLS® 73568899
Listing Agent: Maura Rodino
Listing Office: Berkshire Hathaway HomeServices Commonwealth Real Estate
MLS® Number: 73568899