401 W 4th St Boston, MA 02127
MULTI_FAMILY - Boston, MA
Property Features for 401 W 4th St
General Information
- Property type
- Residential Multi Family
- Property subtype
- Other
- Property condition
- Under Construction
- Zoning
- R1
- Bedrooms
- 5
- Bathrooms
- 5
- Rooms
- Bedroom 2, Bedroom 4, Bathroom 2, Bathroom 3, Bathroom 1, Bathroom 4, Bedroom 1, Bedroom 3, Bathroom 5, Bedroom 5
- Standard status
- Active
- APN
- W:06 P:01094 S:000,1412683
- Size
- 2,795 SF
- Lot size
- 0.03 Acres
Taxes and HOA fees
- Tax Year
- 2025
- Tax Annual Amount
- 10222
Building Details
- Year built
- 1900
- Floors in Building
- 4
- Number of units
- 2
Listing agent Keller Williams (617) 969-9000
Listing office Keller Williams Realty 1340 Centre Street, Suite 202, Newton, MA (617) 969-9000
Listing date Jun 9, 2026
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Investment Insights
Based on property information with market context.
The property is zoned R1. The included plans contemplate both units as duplex-style configurations with generous square footage, and the offering also notes the ability to extend the living area further by maximizing the by-right FAR of 2.0. The current setup and the included approvals are designed to support redevelopment into the intended two-family structure at 401 W 4th St in Boston, MA 02127.
Key Highlights
- Under construction; building year built listed as 1900
- Approved plans included to convert from a single‑family to a 4‑floor two‑family
- Current setup includes 3 floors of living space and 4 bedrooms
Local Financial Insights For Multifamily LT 5
Simulate Cap Rate and NOI
NOI Build-Up
- Vacancy
- income lost from leasable area expected to sit empty during the year — subtracted from gross rent.
- EGI (Effective Gross Income)
- gross rent minus vacancy losses — the realistic income before paying operating costs.
- OpEx (Operating Expenses)
- recurring costs to operate the property (property tax, insurance, utilities, maintenance, management) — excludes financing and capital improvements.
- NOI (Net Operating Income)
- income a property generates after operating costs but before financing and taxes.
| Component | $ | $/SF |
|---|---|---|
| Gross rent | $105.7k | $37.80 |
| − Vacancy | −$4.8k | −$1.70 |
| EGI | $100.9k | $36.10 |
| − OpEx | −$30.3k | −$10.83 |
| NOI | $70.6k | $25.27 |
