45-75 Sidney St, Cambridge — property record card

HIGH-TECH built in 1999 on 2.11 acres in Cambridge, assessed at $290,345,800 for fiscal year 2026.

Rebuilt from the Cambridge assessor file as published by MassGIS — not the official card. For the official card, with owner, photo and sketch, ask the Cambridge assessor’s office.

Parcel

Location	45-75 Sidney St
Map and parcel ID	92-127
Use	HIGH-TECH (use code 406)
Zoning	CRDD
County	Middlesex

Valuation — fiscal year 2026

Building	$252,933,600
Land	$37,412,200
Total assessed	$290,345,800

Land

Lot size	2.11 acres (91,912 ft²)

Building

Year built	1999
Style	LIFE SCI HI TECH
Living area	269,084 ft²
Stories	5

What MassDEP has recorded

RTN 3-0017805 — Pacific Street, activity and use limitation, status RAO, class A3, AUL recorded January 5, 2000 · MassDEP file

Within about 500 m (a third of a mile): 4 active tier-classified 21E sites and 20 sites with an Activity and Use Limitation. All MassDEP sites in Cambridge.

What this means

An Activity and Use Limitation is a deed restriction: it limits how the land may be used (often no residential use or no digging) and passes to every buyer.

Point at the centre of the assessor parcel — not a survey.

Data: Cambridge assessor file for fiscal year 2026, via MassGIS, retrieved October 30, 2026; MassDEP sites retrieved the same day. Sources and freshness. No owner names are published.

First page of a sample Massachusetts Property Report

The report for 45-75 Sidney St

This page shows the assessor record and the MassDEP sites on the parcel. The report adds what lies around it: FEMA flood zone, wetlands, Zone II and other water supply protection areas, priority habitat, sewer or septic service, protected open space, and every 21E site within half a mile.

$19card · PDF within 24 h · you pay after receiving itSee the sample (PDF)

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