Observer
Building report · Back Bay, Boston

400 Stuart St

Boston, MA 02116

6 condos sold at 400 Stuart St in the past 12 months, for a typical $2.51M, or $1,856 a square foot. That's 39% more per square foot than the typical condo in Back Bay.

  • 2009 built
  • 103 units
  • 23 floors with homes
  • #97 in Greater Boston by condo sales
400 Stuart St, Unit 18C: listing photo
Unit 18C, under agreement. Listed by Fiona Romeri, Campion & Company Fine Homes Real Estate. MLS #73499186.
$2.51M
typical sale price, past 12 months
$1,856
per square foot
18 days
typical time to an accepted offer
17%
sold for asking or more
0
for sale now
$1,762
typical monthly condo fee

400 Stuart St sells for 39% more per square foot than Back Bay

Condo sales in the past 12 months: this building against all 294 condo sales in Back Bay.

Back Bay 400 Stuart St

  • Price per sq ft ($)1,3371,856 +39%
  • Days to an accepted offer2618 −33%
Source: Verified market data; analysis by the Observer Markets Desk.
Show the numbers
400 Stuart StBack Bay
Typical price per sq ft$1,856$1,337
Typical days to an accepted offer1826
Sold for asking or more17%30%

Under agreement1 unit

  • Unit 18C: listing photo

    $2,125,000Cut $25K

    Unit 18C, floor 18

    2 bed · 2 bath · 1,213 sq ft

    $1,752/sq ft · 214 days listed · $1,708/mo fee

    Under agreement · Condo · MLS #73499186
    400 Stuart #18C, Boston, MA
    Listed by Fiona Romeri, Campion & Company Fine Homes Real Estate

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
1 bedroom–$6,100 (4)–
2 bedrooms$2.14M (4)$8,350 (3)4.7%
3+ bedrooms$3.71M (2)––

What soldPast 12 months, newest first

ClosedUnitSizePrice$/sq ftvs. first ask
Oct 29Unit 16BMLS #73519512 · Coldwell Banker Realty - Boston2 bed, 1,229 sq ft$2,000,000$1,627−5.9%
Aug 27Unit 20AMLS #73549009 · Real Estate 1093 bed, 1,796 sq ft$3,560,000$1,982−3.4%
Jun 30Unit 16EMLS #73512985 · Coldwell Banker Realty - Boston2 bed, 1,561 sq ft$2,850,000$1,826+0.0%
May 29Unit 17BMLS #73490005 · Compass2 bed, 1,229 sq ft$2,162,500$1,760−1.5%
May 15Unit 23EMLS #73428597 · Coldwell Banker Realty - Boston3 bed, 1,980 sq ft$3,850,000$1,944−6.1%
May 1Unit 16JMLS #73487105 · Coldwell Banker Realty - Boston2 bed, 1,127 sq ft$2,125,000$1,886−2.5%

Where it isWith nearby buildings we track

Questions people ask

How much do condos cost at 400 Stuart St?
In the past 12 months, 6 condos sold at 400 Stuart St (400 Stuart St, Boston) for a typical $2,506,250, or $1,856 per square foot. Sales ranged from $2,000,000 to $3,850,000.
How fast do condos sell at 400 Stuart St?
Units that sold in the past 12 months took a typical 18 days to get an accepted offer, and 17% sold for their first asking price or more. In Back Bay overall, it took 26 days.
What are the condo fees at 400 Stuart St?
The typical monthly condo fee at 400 Stuart St is $1,762, about $1.36 per square foot a month, based on the fees filed with its listings.
How many condos are for sale at 400 Stuart St right now?
None right now.
What does it cost to rent at 400 Stuart St?
7 units rented in the past 12 months, for a typical $6,750 a month. 1 bedroom: $6,100; 2 bedrooms: $8,350.
When was 400 Stuart St built, and how many units does it have?
400 Stuart St was built in 2009 and has 103 units, with homes up to the 23rd floor, according to its listings.

About these numbers

Every figure on this page comes from verified market data for 400 Stuart 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: “400 Stuart St building report,” Boston Real Estate Observer, https://bostonrealestateobserver.com/buildings/boston/400-stuart-st/ (data as of November 8, 2026).