9 Mill And Main Pl, Maynard — property record card
Research and Development facilities built in 1918 on 35.99 acres in Maynard, assessed at $21,111,800 for fiscal year 2026; last transferred July 8, 2024 for a nominal sum.
Rebuilt from the Maynard assessor file as published by MassGIS — not the official card. For the official card, with owner, photo and sketch, ask the Maynard assessor’s office.
Parcel
| Location | 9 Mill And Main Pl, Maynard MA 01754 |
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| Map and parcel ID | 014.0-0000-0201.0 |
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| Use | Research and Development facilities (use code 404) |
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| Zoning | HI |
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| County | Middlesex |
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Valuation — fiscal year 2026
| Building | $17,378,400 |
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| Land | $3,733,400 |
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| Total assessed | $21,111,800 |
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Land
| Lot size | 35.99 acres (1,567,724 ft²) |
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Building
| Year built | 1918 |
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| Style | INDUSTRL BLD |
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| Living area | 782,938 ft² |
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| Stories | 4 |
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| Units | 41 |
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Last recorded sale
| Price | nominal ($0) |
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| Date | July 8, 2024 |
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| Deed | Registry of Deeds book 82974, page 517 |
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2 assessor accounts on this parcel
Condominium units or several buildings share one parcel; each has its own assessment.
| Address | Account | Use | Assessed | Last sale |
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| 9 Mill And Main Pl | 014.0-0000-0201.0 | Research and Development facilities | $20,996,800 | nominal ($0)
July 8, 2024 |
| 146 Main St | 014.0-0000-0201.T | Telephone Relay Towers; Cell Towers | $115,000 | nominal ($1)
November 21, 1997 |
What MassDEP has recorded
- RTN 2-0018788 — Mill And Main Northeast Campus, activity and use limitation, status TMPS, class TN, AUL recorded April 27, 2018 · MassDEP file
- RTN 2-0020017 — Former Building NO.10, activity and use limitation, status PSC, class PA, AUL recorded June 21, 2019 · MassDEP file
Within about 500 m (a third of a mile): 1 active tier-classified 21E site and 2 sites with an Activity and Use Limitation. All MassDEP sites in Maynard.
What this means
- The last deed was recorded for a nominal sum: a transfer between family members, into a trust or a similar non-market sale. It says nothing about the market value.
- 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: Maynard 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 9 Mill And Main Pl
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.
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