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For sale
Office Units
MA
Marshfield
02050
1000 Plain Street #2

Marshfield Office Condo For Sale

1000 Plain Street #2, Marshfield, MA 02050

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For Sale

$1,275,000

5,000 SF office condo on Route 139 in Marshfield.

Type:Commercial

Property size:

5,000 SF

Price / SF:

$255/SF

HighLights

5,000 SF office condo with immediate access to Route 3.
Ideal for owner‑user, suited for various professional services.
51.5% ownership interest in condo association within a professionally maintained building.
Layout includes 14 private offices, open work areas, and multiple reception areas.
Excellent street visibility and strong signage potential on Route 139.
New roof (2021/2022) with warranty and ample on‑site parking.

We can help!

Listing Contact

Megan Bettencourt

Learn more

For Sale

$1,275,000

5,000 SF office condo on Route 139 in Marshfield.

Type:Commercial

Property size:

5,000 SF

Price / SF:

$255/SF

Added:: Apr 23, 2026
Days on Market:: 50
Last Refresh:: Apr 23 at 10:35 am

Property Features for 1000 Plain Street #2

General Information

Standard status: Active
Size: 5,000 SF
Property subtype: Commercial

Building Details

Year Built: 1984

We can help!

Listing Contact

Megan Bettencourt

Listing agent Megan Bettencourt License #9555582

Listing office Unicorn Realty

Listing date Apr 23, 2026

Source Alliancepartnersre

Displayed information is deemed reliable but is not guaranteed and should be independently verified.

All listing content including descriptions, pricing, images are the copyrighted material of Unicorn Realty

HighLights

5,000 SF office condo with immediate access to Route 3.
Ideal for owner‑user, suited for various professional services.
51.5% ownership interest in condo association within a professionally maintained building.
Layout includes 14 private offices, open work areas, and multiple reception areas.
Excellent street visibility and strong signage potential on Route 139.
New roof (2021/2022) with warranty and ample on‑site parking.

Overview

This 5,000 SF office condominium is located on Route 139 in Marshfield, Massachusetts, providing immediate access to Route 3. It presents an ideal opportunity for an owner-user. As one of three units in a professionally maintained building, it offers a 51.5% ownership interest in the condo association. The layout features 14 private offices, large open work areas, and multiple reception/waiting areas. Ample on-site parking is available. The property benefits from excellent street visibility and strong signage potential. A new roof was installed in 2021/2022 and includes a warranty. Access is provided via stairs, as there is no elevator. Previously occupied by a law firm, the space is well-suited for professional services, financial firms, insurance agencies, consulting groups, medical/wellness practices, or corporate headquarters seeking a strong presence on the South Shore.

Local Financial Insights For Office B

Simulate Cap Rate and NOI

NOI Build-Up

Component	$	$/SF
Gross rent	$168.0k	$33.60
− Vacancy	−$28.6k	−$5.71
EGI	$139.4k	$27.89
− OpEx	−$34.9k	−$6.97
NOI	$104.6k	$20.92

5,000 SF · lease $33.60/SF/yr · vacancy 17.00% · expense 25.00%

Alternative Uses

Best Use

Office B

$1.49M

$1.31M – $1.74M (±1% cap)

NOI $104,580 @ 7.0% cap · market cap 8.20%

Second Best

—

no second resolved use

Theoretical Best

Office A

$2.96M

$2.59M – $3.45M (±1% cap)

NOI $207,199 @ 7.0% cap · market cap 16.25%

Zoning and permitted uses should be independently verified with local authorities.

Location Intelligence

Current Use by Public Records

Michael Baird, Real ... Law Firm Boston Cosmetic Surgery ... Medical Clinic Jordan Family Practice ... Medical Clinic Pembroke Primary Care ... Physician Kellem & Kellem, LLP Law Firm

Suggested Use

Location Insight

Map
Local Demand

City: Marshfield
County: Plymouth
State: Massachusetts
Longitude: -70.7588433
Latitude: 42.1072921

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For sale
Office Units
MA
Marshfield
02050
1000 Plain Street #2

What type of property is this?

Office units - 5,000 SF office condo on Route 139 in Marshfield.

Where is this office units located?

The property is located at 1000 Plain Street #2 Marshfield, MA.

What is the asking price?

The asking price for this property is $1,275,000.

What are key features of this property?

This property features: 5,000 SF office condo with immediate access to Route 3.; Ideal for owner‑user, suited for various professional services.; 51.5% ownership interest in condo association within a professionally maintained building.