Observer
Building report · Theatre District, Boston

55 Lagrange St

Boston, MA 02116

13 condos sold at 55 Lagrange St in the past 12 months, for a typical $749K, or $1,128 a square foot. Right now, 7 are for sale and 3 are for rent.

  • 2022 built
  • 167 units
  • 22 floors with homes
  • #21 in Greater Boston by condo sales
55 Lagrange St, Unit 1904: listing photo
Unit 1904, for sale at $1,999,000. Listed by Erin Roper, The Collaborative Companies. MLS #73577448.
$749K
typical sale price, past 12 months
$1,128
per square foot
23 days
typical time to an accepted offer
85%
sold for asking or more
7
for sale now
$893
typical monthly condo fee

55 Lagrange St sells close to the Theatre District norm

Condo sales in the past 12 months: this building against all 15 condo sales in Theatre District.

Theatre District 55 Lagrange St

  • Price per sq ft ($)1,1281,128 +0%
  • Days to an accepted offer2323 +0%
Source: Verified market data; analysis by the Observer Markets Desk.
Show the numbers
55 Lagrange StTheatre District
Typical price per sq ft$1,128$1,128
Typical days to an accepted offer2323
Sold for asking or more85%73%

For sale now7 units, 4.2% of the building

  • Unit 1904: listing photo

    $1,999,000

    Unit 1904, floor 19

    2 bed · 2 bath · 1,268 sq ft

    $1,576/sq ft · 55 days listed · $2,447/mo fee

    Active · Condo · MLS #73577448
    55 LaGrange St #1904, Boston, MA
    Listed by Erin Roper, The Collaborative Companies

  • Unit 304: listing photo

    $1,150,000

    Unit 304, floor 3

    2 bed · 2 bath · 1,043 sq ft

    $1,103/sq ft · 41 days listed · $1,250/mo fee

    Active · Condo · MLS #73583693
    55 Lagrange St #304, Boston, MA
    Listed by The Mazer Group, Compass

  • Unit 1901: listing photo

    $999,000

    Unit 1901, floor 19

    2 bed · 2 bath · 1,119 sq ft

    $893/sq ft · 98 days listed · $1,893/mo fee

    Active · Condo · MLS #73558334
    55 LaGrange St #1901, Boston, MA
    Listed by Erin Roper, The Collaborative Companies

  • Unit 1502: listing photo

    $769,000

    Unit 1502, floor 15

    1 bed · 1 bath · 570 sq ft

    $1,349/sq ft · 6 days listed · $919/mo fee

    Active · Condo · MLS #73598266
    55 LaGrange St #1502, Boston, MA
    Listed by Erin Roper, The Collaborative Companies

  • Unit 1010: listing photo

    $615,000

    Unit 1010, floor 10

    Studio · 1 bath · 578 sq ft

    $1,064/sq ft · 56 days listed · $797/mo fee

    Active · Condo · MLS #73576925
    55 Lagrange St #1010, Boston, MA
    Listed by Khoury Group, Serhant

  • Unit 1201: listing photo

    $599,000

    Unit 1201, floor 12

    Studio · 1 bath · 537 sq ft

    $1,115/sq ft · 69 days listed · $779/mo fee

    Active · Condo · MLS #73570600
    55 LaGrange St #1201, Boston, MA
    Listed by Erin Roper, The Collaborative Companies

Show all 7 for sale
  • Unit 1505: listing photo

    $599,000Cut $30K

    Unit 1505, floor 15

    Studio · 1 bath · 456 sq ft

    $1,314/sq ft · 27 days listed · $783/mo fee

    Active · Condo · MLS #73590027
    55 LaGrange St #1505, Boston, MA
    Listed by Erin Roper, The Collaborative Companies

For rent now3 units

  • Unit 802: listing photo

    $4,500/mo

    Unit 802, floor 7

    1 bed · 1 bath · 570 sq ft

    80 days listed

    For rent · Condo rental · MLS #73566716
    55 Lagrange #802, Boston, MA
    Listed by The Sarkis Team, Douglas Elliman Real Estate - The Sarkis Team

  • Unit 1010: listing photo

    $4,000/mo

    Unit 1010, floor 10

    Studio · 1 bath · 578 sq ft

    53 days listed

    For rent · Condo rental · MLS #73578906
    55 Lagrange St #1010, Boston, MA
    Listed by Khoury Group, Serhant

  • Unit 206: listing photo

    $3,100/mo

    Unit 206, floor 2

    Studio · 1 bath · 456 sq ft

    196 days listed

    For rent · Condo rental · MLS #73507725
    55 Lagrange #206, Boston, MA
    Listed by The Sarkis Team, Douglas Elliman Real Estate - The Sarkis Team

Price per square foot at 55 Lagrange St, quarter by quarter

Typical sale price per square foot, every sale in our data since 2025 Q4.

  • $ per sq ft 1,296 (2026 Q4)
Theatre District typical, past 12 months: $1,128. Source: Verified market data; analysis by the Observer Markets Desk.
Show the numbers
QuarterTypical $/sq ftSales
2025 Q4$1,1474
2026 Q1$1,1256
2026 Q3$1,0942
2026 Q4$1,2962

Higher floors sell for 2% more per square foot

Typical sale price per square foot by floor, past 12 months.

  • Floors 1–8$1,2032 sales
  • Floors 9–15$1,0947 sales
  • Floors 16–22$1,2294 sales
Source: Verified market data; analysis by the Observer Markets Desk.
Show the numbers
FloorsTypical $/sq ftSales
Floors 1–8$1,2032
Floors 9–15$1,0947
Floors 16–22$1,2294

Buy or rent here?

Typical sale price and monthly rent by size, past 12 months. “Rent as % of price” is a year's rent divided by the price: the higher it is, the more renting here costs compared with buying.

SizeSale priceMonthly rentRent as % of price
Studio$499K (2)$3,250 (2)7.8%
1 bedroom$735K (5)$4,350 (6)7.1%
2 bedrooms$1.34M (6)$7,500 (1)–

What soldPast 12 months, newest first

ClosedUnitSizePrice$/sq ftvs. first ask
Oct 15Unit 1202MLS #73533454 · The Collaborative Companies1 bed, 570 sq ft$719,000$1,261+0.0%
Oct 14Unit PH21BMLS #73586238 · The Collaborative Companies2 bed, 1,240 sq ft$1,649,000$1,330+0.0%
Sep 30Unit 1005MLS #73532339 · The Collaborative CompaniesStudio, 456 sq ft$499,000$1,094+0.0%
Sep 25Unit 905MLS #73562525 · The Collaborative CompaniesStudio, 456 sq ft$499,000$1,094+0.0%
Mar 6Unit 707MLS #73448284 · Real Broker MA, LLC1 bed, 655 sq ft$735,000$1,122−10.9%
Mar 2Unit 1402MLS #73465076 · The Collaborative Companies1 bed, 570 sq ft$745,000$1,307+0.0%
Feb 25Unit 808MLS #73470740 · The Collaborative Companies1 bed, 583 sq ft$749,000$1,285+0.0%
Feb 25Unit 1404MLS #73441042 · The Collaborative Companies2 bed, 1,041 sq ft$1,004,000$964+0.5%
Feb 20Unit 1703MLS #73456499 · The Collaborative Companies2 bed, 1,218 sq ft$1,279,000$1,050+0.0%
Jan 20Unit 1802MLS #73453760 · The Collaborative Companies2 bed, 1,240 sq ft$1,399,000$1,128+0.0%
Show all 13 sales
ClosedUnitSizePrice$/sq ftvs. first ask
Dec 19Unit 1504MLS #73428701 · The Collaborative Companies2 bed, 1,041 sq ft$1,050,000$1,009−4.5%
Dec 18Unit 2004MLS #73457807 · The Collaborative Companies2 bed, 1,268 sq ft$2,049,000$1,616+0.0%
Dec 15Unit 1102MLS #73448033 · The Collaborative Companies1 bed, 570 sq ft$669,000$1,174+0.0%

Where it isWith nearby buildings we track

Questions people ask

How much do condos cost at 55 Lagrange St?
In the past 12 months, 13 condos sold at 55 Lagrange St (55 Lagrange St, Boston) for a typical $749,000, or $1,128 per square foot. Sales ranged from $499,000 to $2,049,000.
How fast do condos sell at 55 Lagrange St?
Units that sold in the past 12 months took a typical 23 days to get an accepted offer, and 85% sold for their first asking price or more. In the Theatre District overall, it took 23 days.
What are the condo fees at 55 Lagrange St?
The typical monthly condo fee at 55 Lagrange St is $893, about $1.53 per square foot a month, based on the fees filed with its listings.
How many condos are for sale at 55 Lagrange St right now?
7 units are for sale, asking from $599,000 to $1,999,000.
What does it cost to rent at 55 Lagrange St?
9 units rented in the past 12 months, for a typical $4,300 a month. Studio: $3,250; 1 bedroom: $4,350.
When was 55 Lagrange St built, and how many units does it have?
55 Lagrange St was built in 2022 and has 167 units, with homes up to the 22nd floor, according to its listings.

About these numbers

Every figure on this page comes from verified market data for 55 Lagrange St, Boston, refreshed November 8, 2026, and updates every morning. “Typical” means the median. Price per square foot uses the living area filed with each listing. Condo fees are monthly. Sales history in our data starts in late 2025.

Cite as: “55 Lagrange St building report,” Boston Real Estate Observer, https://bostonrealestateobserver.com/buildings/boston/55-lagrange-st/ (data as of November 8, 2026).