869 Mass Ave, Arlington — property record card
Improved, Education (Municipal or County) built in 2022 on 7.83 acres in Arlington, assessed at $141,329,112 for fiscal year 2026.
Rebuilt from the Arlington assessor file as published by MassGIS — not the official card. For the official card, with owner, photo and sketch, ask the Arlington assessor’s office.
Parcel
| Location | 869 Mass Ave, Arlington MA 02476 |
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| Map and parcel ID | 053.0-0002-0004.0 |
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| Use | Improved, Education (Municipal or County) (use code 934) |
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| Zoning | R1 |
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| County | Middlesex |
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Valuation — fiscal year 2026
| Building | $129,196,512 |
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| Land | $12,132,600 |
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| Total assessed | $141,329,112 |
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Land
| Lot size | 7.83 acres (341,293 ft²) |
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Building
| Year built | 2022 |
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| Style | School |
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| Living area | 531,495 ft² |
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| Stories | 5 |
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Last recorded sale
| Deed | Registry of Deeds book 3886, page 285 |
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What MassDEP has recorded
- RTN 3-0030236 — Arlington High School, tier classified (active), status TIER1D · MassDEP file
Within about 500 m (a third of a mile): 1 active tier-classified 21E site and 5 sites with an Activity and Use Limitation. All MassDEP sites in Arlington.
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: Arlington 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.
The report for 869 Mass Ave
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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