Observer
Building report · Back Bay, Boston

1 Charles St S St

Boston, MA 02116

5 condos sold at 1 Charles St S St in the past 12 months, for a typical $1.21M, or $1,102 a square foot. That's 18% less per square foot than the typical condo in Back Bay. Right now, 3 are for sale.

  • 2004 built
  • 233 units
  • 17 floors with homes
  • #139 in Greater Boston by condo sales
1 Charles St S St, Unit PH1CD: listing photo
Unit PH1CD, for sale at $5,990,000. Listed by Tracy Campion, Campion & Company Fine Homes Real Estate. MLS #73593931.
$1.21M
typical sale price, past 12 months
$1,102
per square foot
42 days
typical time to an accepted offer
20%
sold for asking or more
3
for sale now
$1,804
typical monthly condo fee

1 Charles St S St sells for 18% less 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 1 Charles St S St

  • Price per sq ft ($)1,3371,102 −18%
  • Days to an accepted offer2642 +62%
Source: Verified market data; analysis by the Observer Markets Desk.
Show the numbers
1 Charles St S StBack Bay
Typical price per sq ft$1,102$1,337
Typical days to an accepted offer4226
Sold for asking or more20%30%

For sale now3 units, 1.3% of the building

  • Unit PH1CD: listing photo

    $5,990,000

    Unit PH1CD, floor 17

    4 bed · 4.5 bath · 3,502 sq ft

    $1,710/sq ft · 18 days listed · $6,983/mo fee

    Active · Condo · MLS #73593931
    1 Charles Street South #PH1CD, Boston, MA
    Listed by Tracy Campion, Campion & Company Fine Homes Real Estate

  • Unit PH2C: listing photo

    $5,200,000

    Unit PH2C, floor 17

    3 bed · 3 bath · 2,420 sq ft

    $2,149/sq ft · 27 days listed · $4,408/mo fee

    Active · Condo · MLS #73590221
    1 Charles St S #PH2C, Boston, MA
    Listed by Cort LaBonte Coldren Coopersmith Group, Compass

  • Unit 602: listing photo

    $950,000Cut $45K

    Unit 602, floor 6

    1 bed · 1.5 bath · 837 sq ft

    $1,135/sq ft · 257 days listed · $1,099/mo fee

    Active · Condo · MLS #73480132
    1 Charles St S #602, Boston, MA
    Listed by Judy Pagano, Gibson Sotheby's International Realty

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$680K (1)$3,050 (2)–
1 bedroom$1.01M (2)$4,025 (4)4.8%
2 bedrooms$1.68M (2)––

What soldPast 12 months, newest first

ClosedUnitSizePrice$/sq ftvs. first ask
Sep 1Unit 601MLS #73502800 · Gibson Sotheby's International Realty1 bed, 725 sq ft$799,000$1,102+0.0%
Jun 1Unit 6-AMLS #73485236 · Donnelly + Co.1 bed, 944 sq ft$1,225,000$1,298−3.9%
Apr 6Unit 210MLS #73340131 · CompassStudio, 759 sq ft$680,000$896−19.9%
Feb 12Unit 1110MLS #73448811 · Sprogis & Neale Real Estate2 bed, 1,179 sq ft$1,210,000$1,026−2.8%
Dec 10Unit 5HMLS #73420903 · Compass2 bed, 1,571 sq ft$2,150,000$1,369−8.5%

Where it isWith nearby buildings we track

Questions people ask

How much do condos cost at 1 Charles St S St?
In the past 12 months, 5 condos sold at 1 Charles St S St (1 Charles St S St, Boston) for a typical $1,210,000, or $1,102 per square foot. Sales ranged from $680,000 to $2,150,000.
How fast do condos sell at 1 Charles St S St?
Units that sold in the past 12 months took a typical 42 days to get an accepted offer, and 20% sold for their first asking price or more. In Back Bay overall, it took 26 days.
What are the condo fees at 1 Charles St S St?
The typical monthly condo fee at 1 Charles St S St is $1,804, about $1.61 per square foot a month, based on the fees filed with its listings.
How many condos are for sale at 1 Charles St S St right now?
3 units are for sale, asking from $950,000 to $5,990,000.
What does it cost to rent at 1 Charles St S St?
6 units rented in the past 12 months, for a typical $4,000 a month. Studio: $3,050; 1 bedroom: $4,025.
When was 1 Charles St S St built, and how many units does it have?
1 Charles St S St was built in 2004 and has 233 units, with homes up to the 17th floor, according to its listings.

About these numbers

Every figure on this page comes from verified market data for 1 Charles St S 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: “1 Charles St S St building report,” Boston Real Estate Observer, https://bostonrealestateobserver.com/buildings/boston/1-charles-st-s-st/ (data as of November 8, 2026).