11 Derby St, Waltham, MA, 02453
About This Home
Builder and investor opportunity in Waltham's desirable South Side! Offered as an income-producing investment property, currently two large 1-bedroom units with expansion potential. Located in an RB zoning district with Old Lot Opinion flexibility, allowing for a 1647 sq ft buildable footprint and reduced side-yard setback requirements per town guidelines. Two-family structure in place with strong potential for redevelopment, condo conversion, or expansion including a possible accessory dwelling unit (ADU), subject to municipal approvals. Inquire about seller finance option. Buyer to perform all due diligence.
Getting Around
Very Walkable
Some Transit
BikeableSchools
Construction
Condition
- Year built: 1900
Materials
- Foundation: Stone
- Roof: Shingle
- Construction materials: Frame
Type & Style
- Home type: MultiFamily
- Property subType: Multi Family
Interior
Bedrooms & Bathrooms
- Bedrooms: 2
- Bathrooms: 2
- Full bathrooms: 2
Features
- Finished area above ground: 1,901
Interior Area
- Total structure area: 1,901
- Total interior livable area: 1,901 sqft
Property
Details
- Parcel number: 841483
- Zoning: RB
Features
- Patio & porch: Deck - Wood
Lot
- Lot size: 5,489 sqft
Parking
- Total spaces: 6
- Parking features: Paved Drive,Off Street,Paved
- Has uncovered spaces: Yes
- Uncovered spaces: 6
Climate Risk is Financial Risk
Every home has a financial story beyond the listing price. Below, you’ll see the climate risks that could affect this property — and in Bills & Affordability, how those risks may influence repairs, insurance, utilities, and long-term value.
Biggest Threats for This Home
- Inland Flooding
- Ice Storm
- Lightning
- Tsunami
How This Home’s Risks Compare
FEMA Declared Disasters Across Massachusetts Counties
Understanding the Costs
Financial advisors generally recommend spending no more than 30% of your gross household income on housing costs. In practice, many households stretch to 35% or beyond — especially in high-cost markets.
Estimated Costs Today
| Monthly | Annual | |
|---|---|---|
| Mortgage | $4,040 | $48,480 |
| Home Insurance * | $184 | $2,208 |
| Property Taxes | $628 | $7,536 |
| Electricity | $374 | $4,498 |
| Total | $5,226 | $62,712 |
Income You'd Need if You Spent...
Massachusetts FAIR Plan Programs
How Costs Could Change Over Time
Climate risk is quickly impacting all of the major home ownership costs. Adjust the growth rates and percentage of income spent on housing below to see how your housing costs could change over the next 10 years — and what income you'd need to keep up.
Comparing Against the Market
Price Per Sq Ft
vs Other Active Listings
Avg $/sqft
vs Homes Sold Last Month
Median $/sqft
Current Market Trends
Median Price Per Square Foot
The median price per square foot of homes sold in this area each month. Compare this to this listing's price per square foot to gauge whether the home is priced in line with recent sales.
Historicals for This Listing
Zestimate History ($/sqft)
Price History
| Date | Event | Price |
|---|---|---|
| 2026-03-24 | Price change | $799,000 |
| 2026-01-21 | Price change | $829,000 |
| 2025-12-03 | Listed for sale | $849,000 |
| 1992-08-05 | Sold | $145,000 |
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