121 Lexington St Burlington — Photo 1 of 42
Recent Drop: $200,000
$2,199,999
Investment Analysis — 121 Lexington St
Burlington, MA 01803
Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 5-bedroom in 01803 carries an estimated $4,580/mo in gross rent — about a 1.30% cap rate and $28,496/yr in estimated NOI at the $2,199,999 list price. Adjust every assumption in the calculator below.
Beds
5
Baths
4.5
SqFt
4,700
Style
Single Family
Built
2026
Exceptional new construction Colonial by a top Burlington builder, perfectly sited on a gorgeous nearly one-acre lot in a fantastic location! Designed with timeless style and quality craftsmanship, this home features an oversized chef's kitchen with double islands, a walk-in pantry, formal dining room with custom millwork, and a stunning fireplaced great room with beamed ceiling and walls of windows. The second floor offers 4 bedrooms, including a luxurious primary suite with sitting room, multiple closets, and spa-like bath, plus a second en-suite bedroom and convenient laundry room. The finished walk-up attic includes a bonus room, full bath, and 5th bedroom perfect for in-law/au pair. The walk-out basement offers extra-high ceilings, rough plumbing for a future bath, and outstanding expansion potential.
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 4,700 sq ft principal dwelling). Lot size: 35,201 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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Interior Specifications
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Building & Exterior
Property & Lot
Amenities & Appliances
Gas Water Heater • Refrigerator
Neighborhood
Public Transportation • Shopping • Pool • Tennis Court(s) • Park • Walk/Jog Trails
Geography
Floorplan Breakdown
Structural Layout
Dining Room
Lvl First12.6 x 15.11
Coffered Ceiling(s), Flooring - Hardwood, Window(s) - Bay/Bow/Box, Chair Rail, Recessed Lighting, Crown Molding
Kitchen
Lvl First20.1 x 14.4
Office
Lvl First12.2 x 7.1
Flooring - Hardwood, Recessed Lighting, Crown Molding
Master Bedroom
Lvl Second26 x 26.6
Bathroom - Full, Bathroom - Double Vanity/Sink, Ceiling Fan(s), Closet - Linen, Walk-In Closet(s), Closet, Flooring - Hardwood, Recessed Lighting
Bedroom 2
Lvl Second12.6 x 11.8
Bedroom 3
Lvl Second16.7 x 11.11
Closet, Flooring - Hardwood
Bedroom 4
Lvl Second12.4 x 11.8
Closet, Flooring - Hardwood
Bedroom 5
Lvl Third12.6 x 12.7
Bathroom - Full, Closet, Flooring - Wall to Wall Carpet, Recessed Lighting
Bathroom 1
Lvl First4.8 x 15.1
Bathroom - Half
Bathroom 2
Lvl Second8.6 x 9.8
Bathroom - Full, Flooring - Stone/Ceramic Tile
Bathroom 3
Lvl Second9.9 x 5
Bathroom - Full, Flooring - Stone/Ceramic Tile
Property History
$2,199,999
Was $2,299,999
Sep 10, 2026
MLS® 73547498
$2,299,999
Was $2,399,999
Aug 15, 2026
MLS® 73547498
$2,399,999
Jul 9, 2026
MLS® 73547498
Listing Agent: Paul A. Conti
Listing Office: Paul Conti Real Estate
MLS® Number: 73547498
