Property profile

280 Washington St Ste 300 Boston, MA 02135

OFF-MARKET
Office buildings
Property ID
US38-0397680
225,294 SF 0.57 ac lot Built 1899
Entity Owned 1-yr Hold Free & Clear
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Property profile

Verified
Property type Office buildings
Use group OFFICE BUILDING
Year built 1899
Construction CONCRETE
Total area 225,294 SF
Lot 0.57 ac (24,700 SF)
Zoning code C
APN CBOS W:03 P:03907 S:000
UPID US38-0397680

Cap rate & NOI

Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors

Location

280 Washington St Ste, Unit 300 Boston, MA 02135-3511
Boston metro Census 601 BOSTON-CAMBRIDGE-QUINCY, MA-NH METROPOLITAN STATISTICAL AREA
Google Maps

Value estimations

Realmo proprietary · 4 methods
AI Approach AI
by Request
CAP Approach CAP
by Request
Comparable Approach Comparable
by Request
Blend (final) Blend
$4.38M

Owner & transaction history

since 2025
Last sale
$4.5M
4 recorded transactions
2025
$4.5M
2004
$57.0M
1998
$27.0M
1998
Price N/A

Zoning & alternative use

C · Boston, MA

Comparables

6 recent transactions · within 1.5 mi
Comparable in this city
6 recent transactions
Recent comparable sales
Sale price & price/SF · Sale date & distance · Adjustments & confidence
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