Chelsea Square in Chelsea, Massachusetts is a seven-building mixed-use urban campus with approximately 260,000 rentable square feet. The property has supported a range of tenant uses, including medical, office, light manufacturing, and biotech applications. It includes amenities such as an on-site property management office, a grab-and-go café, and an Eastern Bank branch, and it is served by nearby MBTA access including a Silver Line stop. Chelsea Square includes a Bunker Hill Community College…

Ownership intelligence

Who controls the opportunity?

Owner of record from public deeds, plus portfolio, hold profile and investor signals where the data supports them. In the full report.

Owner contacts

Can we reach the decision maker?

Skip-traced phones and e-mails of the owner. Included with the full report.

Debts

What is owed, to whom, and when it comes due

Recorded lenders, amounts and estimated maturities of the owner's loan book — in the full report.

Property tax · 2024

What does the county charge?

$176k

Tax billed · 2024

Assessed value$7.40M

Assessed land$794k

Assessed improvement$6.61M

Effective rate2.38%

Value estimate

· Oct 2026

$10.50M

$9.45M – $11.54M

Realmo valuation models over county records and 5 qualifying comparable sales.

Recently sold

What actually traded nearby?

$543/SF

County average, outlier-cleaned · 181 recorded sales of this use type

Observed band · Q1–Q3$293 – $858

Qualifying comparables5

Cap rate analysis

How does the asset earn?

No income signal is modeled for this parcel yet — the Cap Rates tab runs the workflow.

Zoning insight

What can be built here?

INDUST

JurisdictionCHELSEA

Location intelligence

Which uses thrive at this corner?

Best fit: Realty agency

Demand heat for this use is drawn on the map · LocInt grid

Demand index

Realty agency66.7

Building Supply46.4

Law Firm38.9

90 Everett Ave Chelsea, MA 02150-2311

County assessor Recorded deeds · 3 transfers 5 qualifying comp sales Zoning catalog

Every figure names its source: public record, benchmark, or modeled. Coverage varies by property — thin data is stated as missing, never invented.

Comparables

5 recorded sales · 15 properties nearby

Address Sale price Sold Size

129 Library, Chelsea, MA 02150 $4,000,000 Apr 2025 5,046 SF

125 Library, Chelsea, MA 02150-3301 $4,000,000 Jan 2025 3,534 SF

267 Broadway, Chelsea, MA 02150-2807 $125,000 Feb 2023 14,800 SF

95 4th, Chelsea, MA 02150-2358 $3,800,000 Aug 2021 13,680 SF

70 Everett, Chelsea, MA 02150-2376 $28,800,000 Dec 2019 88,280 SF

Sale prices and dates as our records hold them, one row per building. A deed can cover more of a building than the size shown, so read the price against the size rather than dividing one by the other.

Comparable nearby

Value Estimation
$7,680,000

36,342 SF

235 Marginal St

OFFICE BUILDING

235 Marginal St, Chelsea, MA 02150-3759

View Details
Value Estimation
$3,935,000

13,680 SF

95 4th St

OFFICE BUILDING

95 4th St, Chelsea, MA 02150-2358

View Details
Value Estimation
$2,635,000

12,324 SF

10 Wesley St

OFFICE BUILDING

10 Wesley St, Chelsea, MA 02150-1419

View Details
Value Estimation
$2,310,000

10,472 SF

276 Broadway

OFFICE BUILDING

276 Broadway, Chelsea, MA 02150-2984

View Details
Value Estimation
$2,115,000

9,998 SF

50 Commandants Way

OFFICE BUILDING

50 Commandants Way, Chelsea, MA 02150-4015

View Details
Value Estimation
$2,105,000

9,592 SF

167 Revere Bch Pkwy

OFFICE BUILDING

167 Revere Bch Pkwy, Chelsea, MA 02150-1603

View Details

Similar Nearby for Sale

New

Contact for pricing
5,830 SF

Second-Floor Office Units

Office suites combine open workspace with private rooms and shared business amenities.

100 Everett Ave, Chelsea, MA 02150

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New

$600,000

7-Room Office Suite

Flexible layout supports medical, legal, therapy, and consulting practices.

34 Central Avenue, Chelsea, MA 02150

View Details
New

Contact for pricing

Renovated 3-Office Unit

Updated office suite with reception, private work areas, and on-site parking.

111 Everett Ave # 2D, Chelsea, MA 02150

View Details

Similar in This City for Lease

Contact for pricing
5,830 sqft

Second-Floor Office Suite

Second-floor office space with open areas, private offices, kitchen, and conference rooms, available for lease or flexible terms.

100 Everett Ave, Chelsea, MA 02150

View Details
Contact for pricing
5,650 sqft

Flex Office with Exterior Storage

5,650 SF flex space combines small-bay garage area with second-floor office and exterior space for parking or storage.

201 Marginal St, Chelsea, MA 02150

View Details
Contact for pricing
1,457 sqft

Industrial Flex Warehouse Facility

Industrial/R&D warehouse space includes 23,000 square feet of second-floor office and was built in 1987.

150 Eastern Ave, Chelsea, MA 02150

View Details
$2,500/Mo

Renovated Office Suite with Reception

Renovated office suite with reception, three private offices, bathroom, and a new heating and cooling system.

111 Everett Ave # 2b, Chelsea, MA 02150

View Details
$2,500/Mo

Renovated Office Unit

Three offices, a reception area, restroom, parking, and updated HVAC support immediate occupancy.

111 Everett Ave 2d, Chelsea, MA 02150

View Details
New

$2,500/Mo

Renovated Office Suite with Reception

Professional office layout with dedicated workrooms, updated climate control, parking, and convenient access to Boston and major routes.

2d-111 Everett Ave, Chelsea, MA 02150

View Details

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90 Everett Ave Chelsea, MA 02150

Property summary