21-23 Essex St #23/2, Cambridge — property record card
Residential Condominium built in 1920 in Cambridge, assessed at $4,866,900 for fiscal year 2026; last sold for $500,000 on August 16, 2024.
Parcel
| Location | 21-23 Essex St #23/2, Cambridge MA 02139 |
|---|---|
| Map and parcel ID | 90-45 90-45-23/2 |
| Use | Residential Condominium |
| County | Middlesex |
Valuation — fiscal year 2026
| Building | $4,866,900 |
|---|---|
| Land | $0 |
| Total assessed | $4,866,900 |
Building
| Year built | 1920 |
|---|---|
| Style | APARTMENT |
| Living area | 1,080 ft² |
| Rooms | 7 |
| Stories | 1 |
| Units | 8 |
Last recorded sale
| Price | $500,000 |
|---|---|
| Date | August 16, 2024 |
| Deed | Registry of Deeds book 83136, page 0018 |
8 assessor accounts on this parcel
| Address | Account | Use | Assessed | Last sale |
|---|---|---|---|---|
| 21 Essex St | 90-45 | CONDO-BLDG | $0 | $1,225,000 |
| 21-23 Essex St #21/1F | 90-45-21/1F | Residential Condominium | $423,700 | $205,000 |
| 21-23 Essex St #21/1R | 90-45-21/1R | Residential Condominium | $426,100 | $500,000 |
| 21-23 Essex St #21/2 | 90-45-21/2 | Residential Condominium | $788,600 | $410,000 |
| 21-23 Essex St #21/3 | 90-45-21/3 | Residential Condominium | $744,400 | $610,000 |
| 21-23 Essex St #23/1 | 90-45-23/1 | Residential Condominium | $861,800 | nominal ($1) |
| 21-23 Essex St #23/2 | 90-45-23/2 | Residential Condominium | $889,700 | $830,000 |
| 21-23 Essex St #23/3 | 90-45-23/3 | Residential Condominium | $732,600 | $390,000 |
What MassDEP has recorded
No tier-classified 21E site and no Activity and Use Limitation is mapped on this parcel.
Within about 500 m (a third of a mile): 4 active tier-classified 21E sites and 3 sites with an Activity and Use Limitation. All MassDEP sites in Cambridge.
What this means
- Assessed 66% above the median residential condominium in Cambridge ($2,924,050, 2,506 parcels).
- The last sale price is 90% below the current assessment. Massachusetts assessments aim at full market value as of January 1 of the year before the fiscal year.
- Built before 1978: the Massachusetts Lead Law applies when a child under six lives there; ask for any lead inspection or letter of compliance.

The report for 21-23 Essex St #23/2
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)