21 Magnolia Ln, Groton — property record card
Residential Condominium built in 2009 in Groton, assessed at $7,571,500 for fiscal year 2026; last sold for $720,000 on December 29, 2025.
Rebuilt from the Groton assessor file as published by MassGIS — not the official card. For the official card, with owner, photo and sketch, ask the Groton assessor’s office.
Parcel
| Location | 21 Magnolia Ln, Groton MA 01450 |
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| Map and parcel ID | 204_10_42 204_10_42_1 |
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| Use | Residential Condominium (use code 1020) |
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| County | Middlesex |
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Valuation — fiscal year 2026
| Building | $7,571,500 |
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| Land | $0 |
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| Total assessed | $7,571,500 |
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Building
| Year built | 2009 |
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| Style | Detached Twnhs |
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| Living area | 2,993 ft² |
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| Rooms | 5 |
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| Units | 14 |
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Last recorded sale
| Price | $720,000 |
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| Date | December 29, 2025 |
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| Deed | Registry of Deeds book 85064, page 302 |
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14 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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| 21 Magnolia Ln | 204_10_42_1 | Residential Condominium | $674,900 | $456,900
December 9, 2019 |
| 25 Magnolia Ln | 204_10_42_2 | Residential Condominium | $579,400 | $468,000
July 10, 2020 |
| 29 Magnolia Ln | 204_10_42_3 | Residential Condominium | $469,800 | $309,900
December 15, 2011 |
| 33 Magnolia Ln | 204_10_42_4 | Residential Condominium | $580,600 | $378,175
November 9, 2012 |
| 35 Magnolia Ln | 204_10_42_5 | Residential Condominium | $632,500 | nominal ($1)
September 4, 2020 |
| 37 Magnolia Ln | 204_10_42_6 | Residential Condominium | $607,400 | nominal ($100)
January 22, 2014 |
| 39 Magnolia Ln | 204_10_42_7 | Residential Condominium | $466,500 | $620,000
February 7, 2025 |
| 41 Magnolia Ln | 204_10_42_8 | Residential Condominium | $557,400 | $383,351
January 23, 2009 |
| 45 Magnolia Ln | 204_10_42_9 | Residential Condominium | $623,900 | $636,000
May 5, 2022 |
| 49 Magnolia Ln | 204_10_42_10 | Residential Condominium | $599,000 | $720,000
December 29, 2025 |
| 55 Magnolia Ln | 204_10_42_11 | Residential Condominium | $575,600 | $417,629
May 6, 2015 |
| 57 Magnolia Ln | 204_10_42_12 | Residential Condominium | $617,600 | $625,000
January 5, 2023 |
| 67 Magnolia Ln | 204_10_42_13 | Residential Condominium | $586,900 | $443,335
October 21, 2016 |
| Magnolia Ln | 204_10_42 | Other, Open Space | $0 | nominal ($100)
October 17, 2005 |
What MassDEP has recorded
No tier-classified 21E site and no Activity and Use Limitation is mapped on this parcel.
What this means
- Assessed 801% above the median residential condominium in Groton ($840,800, 59 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.
Point at the centre of the assessor parcel — not a survey.
Data: Groton 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 21 Magnolia Ln
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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