24 Blackstone St, Cambridge — property record card

College or University (Educational Private) built in 1890 on 2.52 acres in Cambridge, assessed at $41,953,400 for fiscal year 2026; last sold for $14,118,000 on April 9, 2003.

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	24 Blackstone St
Map and parcel ID	129-47
Use	College or University (Educational Private) (use code 942)
Zoning	SD-13
County	Middlesex

Valuation — fiscal year 2026

Building	$18,865,200
Land	$23,088,200
Total assessed	$41,953,400

Land

Lot size	2.52 acres (109,771 ft²)

Building

Year built	1890
Style	INDUST-MFCTR
Living area	119,109 ft²
Stories	1
Units	2

Last recorded sale

Price	$14,118,000
Date	April 9, 2003
Deed	Registry of Deeds book 38730, page 0577

What MassDEP has recorded

RTN 3-0050423 — Harvard Steam Plant, tier classified (active), status TIERII · MassDEP file

Within about 500 m (a third of a mile): 7 active tier-classified 21E sites and 5 sites with an Activity and Use Limitation. All MassDEP sites in Cambridge.

What this means

A tier-classified site is a release still being cleaned up under the Massachusetts Contingency Plan; the MassDEP file shows the stage reached.

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 24 Blackstone 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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