This listing is off-market

45 L St

Unit 21, South Boston, Boston, 02127

●Apartment for rent

Beds

3

Baths

2

Published

30 days ago
$6,000 / month

Description

HUGE 1,550 SF 3 bed, 2 baths, 4th floor unit available on 9/1/2026. New construction of 30-unit mixed-use building, complete with ultra luxurious finishes including steam showers, fireplaces, quartz countertops, high end appliances (inc. wine cooler), cent...
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Building Info

Building TypeApartment
Heat SourceGas

Parking Info

ParkingNone
Number Of SpotsN/A
Cost Per MonthN/A

Included Utilities & Amenities

Disposal
Water

Walk Score

Google Maps Location

Rent price history

DatePrice
Apr 2026$6,000+20%
Nov 2025$5,000-
Nov 2025$5,000-2%
Sep 2025$5,100-2%
Aug 2025$5,200-12%
Jun 2025$5,900+16%
Aug 2024$5,100-5%
May 2023$5,350-

Neighborhood FAQ

What neighborhood is 45 L St in?

South Boston, Boston (02127).

What's South Boston known for?

A waterfront neighborhood known locally as "Southie," spanning both traditional triple-deckers in its older core and the redeveloped Seaport District's new-construction apartment towers.

Browse: South Boston apartments

How do people get around South Boston?

Red Line: Broadway, Andrew; Silver Line (bus rapid transit): Courthouse, World Trade Center

What's the average rent for a 3-bedroom in South Boston right now?

Average asking rent is $4,984/mo, as of August 2026.

How does South Boston rent compare with nearby neighborhoods for a 3-bedroom?

South Boston's average is $4,984/mo, next to South End $5,808/mo, Dorchester $3,340/mo — same bed size, same month, and only areas with enough active listings to report.

Browse: South End apartments · Dorchester apartments