
398 Union St New Bedford — Photo 1 of 40
Recent Drop: $4,001
$544,999
Investment Analysis — 398 Union St
New Bedford, MA 02740
Based on HUD Small Area Fair Market Rent for New Bedford, MA HUD Metro FMR Area, a 10-bedroom in 02740 carries an estimated $2,200/mo in gross rent — about a 2.47% cap rate and $13,440/yr in estimated NOI at the $544,999 list price. Adjust every assumption in the calculator below.
Beds
10
Baths
3.5
SqFt
3,065
Style
Single Family
Built
1891
Large Victorian style home w/plenty of rooms & space for your needs. Previously used as a rooming/group house & is now used as a large single family; great for multi conversion, business use, extended family or rental income. First floor layout includes 4 spacious bedrooms, living room, dining room, bonus room, large entry hallway, eat-in kitchen, 1.5 bathrooms, & back hallway that leads to another porch & back yard. A beautiful staircase to 2nd floor offers 4 more large bedrooms 2 more full bathrooms & a 2nd living/family room; the 3rd floor is finished w/2 additional bonus rooms. Tall ceilings throughout, hardwood floors & updated bathrooms. Huge basement w/tall ceilings can be finished for more living space, office, gym & lots of storage. Porches & back yard offers lots of shade perfect for relaxing or your entertaining needs. Close to downtown, the historic district, great area amenities like the Whale museum; you'll love everything New Bedford has to offer.
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 3,065 sq ft principal dwelling). Lot size: 3,690 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
Range • Refrigerator
Neighborhood
Public Transportation • Shopping • Park • Walk/Jog Trails • Medical Facility • Bike Path
Geography
Floorplan Breakdown
Structural Layout
Living Room
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Lvl SecondProperty History
$544,999
Was $549,000
Aug 25, 2026
MLS® 73529683
$549,000
Jun 3, 2026
MLS® 73529683
$549,000
Feb 27, 2026
MLS® 73442569
$549,000
Oct 11, 2025
MLS® 73442569
$299,000
Aug 5, 2010
MLS® 71080396
$299,000
May 12, 2010
MLS® 71080396
Listing Agent: Daisy De La Rosa
Listing Office: Keller Williams Realty
MLS® Number: 73529683








