515A Main St #A, Groton — property record card
Residential Condominium built in 2006 in Groton, assessed at $14,652,490 for fiscal year 2026; last sold for $199,700 on February 2, 2026.
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 | 515A Main St #A |
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| Map and parcel ID | 216_12_0 216_12_0_7A |
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| Use | Residential Condominium (use code 1020) |
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| Zoning | RA |
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| County | Middlesex |
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Valuation — fiscal year 2026
| Building | $14,637,690 |
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| Land | $0 |
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| Other | $14,800 |
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| Total assessed | $14,652,490 |
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Building
| Year built | 2006 |
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| Style | Condo Unit |
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| Living area | 1,446 ft² |
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| Rooms | 5 |
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| Units | 46 |
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Last recorded sale
| Price | $199,700 |
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| Date | February 2, 2026 |
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| Deed | Registry of Deeds book 85185, page 524 |
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46 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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| 501 Main St | 216_12_0_12 | Day Care Centers, Adult (see also Code 140) | $363,800 | nominal ($1)
December 29, 2025 |
| 503A Main St #A | 216_12_0_11A | Residential Condominium | $381,900 | $169,900
October 14, 2009 |
| 503B Main St #B | 216_12_0_11B | Residential Condominium | $183,435 | $183,435
December 22, 2023 |
| 503C Main St #C | 216_12_0_11C | Residential Condominium | $367,000 | $349,900
May 25, 2023 |
| 503D Main St #D | 216_12_0_11D | Residential Condominium | $350,100 | $229,900
August 14, 2019 |
| 505A Main St #A | 216_12_0_10A | Residential Condominium | $171,959 | nominal ($1)
July 29, 2021 |
| 505B Main St #B | 216_12_0_10B | Residential Condominium | $381,300 | $181,000
October 2, 2013 |
| 505C Main St #C | 216_12_0_10C | Residential Condominium | $350,100 | $166,000
July 31, 2012 |
| 505D Main St #D | 216_12_0_10D | Residential Condominium | $367,000 | $169,400
April 26, 2012 |
| 507A Main St #A | 216_12_0_9A | Residential Condominium | $384,200 | nominal ($10)
November 7, 2025 |
| 507B Main St #B | 216_12_0_9B | Residential Condominium | $184,652 | $174,200
March 24, 2020 |
| 507C Main St #C | 216_12_0_9C | Residential Condominium | $367,000 | $179,000
July 30, 2015 |
| 507D Main St #D | 216_12_0_9D | Residential Condominium | $372,500 | nominal ($100)
December 4, 2025 |
| 509A Main St #A | 216_12_0_8A | Residential Condominium | $171,959 | $162,225
November 28, 2007 |
| 509B Main St #B | 216_12_0_8B | Residential Condominium | $384,200 | $179,500
July 30, 2015 |
| 509C Main St #C | 216_12_0_8C | Residential Condominium | $350,100 | $162,900
July 29, 2011 |
| 509D Main St #D | 216_12_0_8D | Residential Condominium | $346,700 | $278,000
November 8, 2021 |
| 511A Main St #A | 216_12_0_1A | Residential Condominium | $362,600 | $229,000
December 14, 2018 |
| 511B Main St #B | 216_12_0_1B | Residential Condominium | $424,100 | $443,950
March 14, 2024 |
| 511C Main St #C | 216_12_0_1C | Residential Condominium | $350,100 | nominal ($10)
August 26, 2024 |
| 511D Main St #D | 216_12_0_1D | Residential Condominium | $346,700 | $219,000
September 10, 2007 |
| 513A Main St #A | 216_12_0_2A | Residential Condominium | $425,000 | nominal ($1)
January 11, 2023 |
| 513B Main St #B | 216_12_0_2B | Residential Condominium | $355,600 | $380,000
August 12, 2025 |
| 513C Main St #C | 216_12_0_2C | Residential Condominium | $346,700 | $220,000
October 5, 2017 |
| 513D Main St #D | 216_12_0_2D | Residential Condominium | $197,739 | $197,739
November 15, 2024 |
| 515A Main St #A | 216_12_0_7A | Residential Condominium | $433,800 | $450,000
September 15, 2025 |
| 515B Main St #B | 216_12_0_7B | Residential Condominium | $205,534 | $193,900
August 19, 2020 |
| 515C Main St #C | 216_12_0_7C | Residential Condominium | $367,000 | nominal ($1)
May 31, 2022 |
| 515D Main St #D | 216_12_0_7D | Residential Condominium | $151,315 | $142,750
May 19, 2016 |
| 517A Main St #A | 216_12_0_6A | Residential Condominium | $171,959 | $162,225
April 27, 2007 |
| 517B Main St #B | 216_12_0_6B | Residential Condominium | $424,100 | $334,000
January 21, 2022 |
| 517C Main St #C | 216_12_0_6C | Residential Condominium | $382,000 | $360,000
June 1, 2022 |
| 517D Main St #D | 216_12_0_6D | Residential Condominium | $367,000 | nominal ($100)
December 3, 2024 |
| 519A Main St #A | 216_12_0_5A | Residential Condominium | $424,100 | $285,000
October 15, 2020 |
| 519B Main St #B | 216_12_0_5B | Residential Condominium | $171,959 | nominal ($1)
June 11, 2007 |
| 519C Main St #C | 216_12_0_5C | Residential Condominium | $364,200 | $330,000
January 17, 2023 |
| 519D Main St #D | 216_12_0_5D | Residential Condominium | $350,100 | $214,900
December 11, 2017 |
| 521A Main St #A | 216_12_0_4A | Residential Condominium | $388,000 | nominal ($100)
April 22, 2024 |
| 521B Main St #B | 216_12_0_4B | Residential Condominium | $355,600 | nominal ($100)
April 22, 2024 |
| 521C Main St #C | 216_12_0_4C | Residential Condominium | $350,100 | $169,000
October 31, 2016 |
| 521D Main St #D | 216_12_0_4D | Residential Condominium | $166,420 | $199,700
February 2, 2026 |
| 523A Main St #A | 216_12_0_3A | Residential Condominium | $171,959 | nominal ($1)
January 30, 2019 |
| 523B Main St #B | 216_12_0_3B | Residential Condominium | $424,100 | $165,000
September 17, 2009 |
| 523C Main St #C | 216_12_0_3C | Residential Condominium | $350,100 | $330,000
March 31, 2025 |
| 523D Main St #D | 216_12_0_3D | Residential Condominium | $346,700 | $163,000
January 6, 2015 |
| Main St | 216_12_0 | Other, Open Space | $0 | $1,700,000
March 7, 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 1643% above the median residential condominium in Groton ($840,800, 59 parcels).
- The last sale price is 99% 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 515A Main St #A
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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Order the report