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$2,800,000 Just Listed

  • For Sale
  • Active
  • Commercial
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Offered for the first time in a generation. 12,646 sq.ft. single story building on busy Main Street just outside Watertown Square. Building is currently leased to three individual tenants, each with separate entries and dedicated gas & electric. Owner-User opportunity with 5,300 sq.ft. potentially available in Q3 2027. Contact broker for financial details and lease information - confidentiality agreement required.

Full Property Details for 309 Main St

General

  • Price: $2,800,000
  • Taxes: $50,883 (2026)
  • Status: Active
  • Type: Commercial
  • MLS ID: 73589061
  • Updated: Today (10/9/2026)
  • Added to Site: Today

Location

  • County: Middlesex

Structural Information

  • Square Feet: 12,646
  • Year Built: 1950

Lot Features

  • Lot Size (Acres): 0.49

Financial Considerations

  • Tax Amount: $50,883
  • Tax Year: 2026

Disclosures and Reports

  • Property ID: M:0339 B:0002 L:0000, 848341

Listed by W. J. Nealon Commercial Realty, Inc., John Nealon

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Listing agent

— 309 Main St —

  • John Nealon

    W. J. Nealon Commercial Realty, Inc.

Get Pre-Approved Today

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 309 Main St

School District:Watertown School District
NameGradesDistance
J.R. Lowell Elementary School
175 Orchard Street, Watertown, MA 02472
K-50.6 mi
Watertown Middle School
68 Waverley Avenue, Watertown, MA 02472
6-80.2 mi
Watertown High School
50 Columbia Street, Watertown, MA 02472
9-120.6 mi
Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 309 Main St Get Price Alerts and Save Property

Date
Details
Price
Change
Source
10/09/2026
Listed
$2,800,000
—
MLS
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 309 Main St

Year
Property Taxes
Change
Tax Assessment
Change
2026
$50,883
3%
$2,168,000
—
2025
$49,495
7%
$2,168,000
8%
2024
$46,462
22%
$2,013,100
4%
2023
$38,069
5%
$1,929,500
13%
2022
$36,412
-14%
$1,711,100
-8%
2021
$42,573
6%
$1,853,400
4%
2020
$40,241
1%
$1,786,100
7%
2019
$39,853
4%
$1,664,000
7%
2018
$38,270
7%
$1,553,800
10%
2017
$35,802
—
$1,414,000
—
2016
$35,916
18%
$1,414,000
30%
2015
$30,364
1%
$1,089,500
1%
2014
$30,088
3%
$1,076,100
—
2013
$29,216
—
$1,076,100
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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*These costs are estimates, and the interest rates assume exceptional credit standing.

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with our affiliated lender
NMLS#: 1598647

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Listed by W. J. Nealon Commercial Realty, Inc., John Nealon

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309 Main St, Watertown, MA 02472 (MLS# 73589061) is a Commercial property. 309 Main St is currently listed for $2,800,000 and was received on October 09, 2026. Want to learn more about 309 Main St? Do you have questions about finding other Commercial real estate for sale in Waverly? You can browse all Waverly real estate or contact a Coldwell Banker agent to request more information.

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