
20 Robinhood Lane Billerica — Photo 1 of 34
$739,000
Investment Analysis — 20 Robinhood Lane
Billerica, MA 01821 — Castlewood Estates
Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 4-bedroom in 01821 carries an estimated $3,890/mo in gross rent — about a 3.63% cap rate and $26,852/yr in estimated NOI at the $739,000 list price. Adjust every assumption in the calculator below.
Beds
4
Baths
2
SqFt
1,736
Style
Single Family
Built
1969
Welcome to this beautifully maintained split-entry home offering 4 bedrooms, 2 full baths, and a flexible layout designed for comfortable everyday living. The open-concept main level features hardwood floors, a granite kitchen with tile backsplash, stainless steel appliances, recessed lighting, and a center island. Sliding doors lead to a private deck and landscaped backyard. The versatile lower level offers a spacious family room, office or playroom, laundry area, additional bedroom, and full bath. Additional highlights include Harvey windows, a gas furnace, central air, updated 200-amp electrical service, and an automatic garage door. Conveniently located near the Country Club of Billerica with easy access to Route 3, I-495, I-95/Route 128, shopping, dining, and the North Billerica commuter rail. A great combination of space, comfort, and convenience.
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: 868 sq ft (the lesser of 900 sq ft or half the 1,736 sq ft principal dwelling). Lot size: 33,175 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
Electric Water Heater • Range • Oven • Dishwasher • Disposal • Microwave • Refrigerator • Freezer • Washer • Dryer • Plumbed For Ice Maker
Neighborhood
Public Transportation • Shopping • Park • Walk/Jog Trails • Golf • Highway Access
Geography
Floorplan Breakdown
Structural Layout
Living Room
Lvl FirstFlooring - Hardwood, Cable Hookup, Deck - Exterior, Exterior Access, Open Floorplan, Recessed Lighting, Slider
Dining Room
Lvl Main,FirstFlooring - Stone/Ceramic Tile, Deck - Exterior, Exterior Access, Open Floorplan, Recessed Lighting, Slider
Kitchen
Lvl Main,FirstFlooring - Stone/Ceramic Tile, Dining Area, Countertops - Stone/Granite/Solid, Kitchen Island, Breakfast Bar / Nook, Cabinets - Upgraded, Deck - Exterior, Open Floorplan, Recessed Lighting, Stainless Steel Appliances
Family Room
Lvl BasementFlooring - Wall to Wall Carpet, Cable Hookup, Exterior Access, Open Floorplan, Recessed Lighting
Primary Bedroom
Lvl Main,First12 x 10
Ceiling Fan(s), Closet, Flooring - Hardwood, Cable Hookup
Bedroom 2
Lvl Main,First11 x 11
Bedroom 3
Lvl Main,First9 x 10
Ceiling Fan(s), Closet, Flooring - Hardwood, Cable Hookup
Bedroom 4
Lvl Basement9 x 9
Closet, Flooring - Wall to Wall Carpet
Bathroom 1
Lvl Main,FirstBathroom - Full, Bathroom - Double Vanity/Sink, Bathroom - Tiled With Tub & Shower, Flooring - Stone/Ceramic Tile, Countertops - Stone/Granite/Solid
Bathroom 2
Lvl BasementBathroom - Full, Bathroom - With Shower Stall, Flooring - Stone/Ceramic Tile, Enclosed Shower - Fiberglass
Property History
$739,000
Sep 30, 2026
MLS® 73584346
$749,999
Sep 13, 2025
MLS® 73413943
$749,999
Aug 5, 2025
MLS® 73413943
Listing Agent: Hagop Majarian
Listing Office: MBR Group LLC
MLS® Number: 73584346








