11 Black Birch Ln, Concord — property record card
Condo NL MDL-05 built in 2016 on 14.99 acres in Concord, assessed at $27,139,900 for fiscal year 2026; last sold for $1,065,000 on February 23, 2026.
Rebuilt from the Concord assessor file as published by MassGIS — not the official card. For the official card, with owner, photo and sketch, ask the Concord assessor’s office.
Parcel
| Location | 11 Black Birch Ln, Concord MA 01742 |
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| Map and parcel ID | 2970-2-39 2970-11 |
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| Use | Condo NL MDL-05 (use code 1021) |
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| Zoning | I |
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| County | Middlesex |
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Valuation — fiscal year 2026
| Building | $27,101,100 |
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| Land | $0 |
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| Other | $38,800 |
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| Total assessed | $27,139,900 |
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Land
| Lot size | 14.99 acres (652,964 ft²) |
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Building
| Year built | 2016 |
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| Style | Condominium |
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| Living area | 2,367 ft² |
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| Rooms | 5 |
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| Units | 25 |
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Last recorded sale
| Price | $1,065,000 |
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| Date | February 23, 2026 |
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| Deed | Registry of Deeds book 85256, page 35 |
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25 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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| 2 Black Birch Ln | 2970-2 | Condo NL MDL-05 | $1,348,500 | $1,588,000
April 19, 2018 |
| 3 Black Birch Ln | 2970-3 | Condo NL MDL-05 | $1,190,500 | $1,200,000
November 15, 2018 |
| 4 Black Birch Ln | 2970-4 | Condo NL MDL-05 | $1,288,700 | $1,672,739
November 9, 2017 |
| 5 Black Birch Ln | 2970-5 | AFFORDABLE MDL-05 | $487,400 | $399,000
July 28, 2017 |
| 6 Black Birch Ln | 2970-6 | Condo NL MDL-05 | $1,240,200 | nominal ($10)
October 3, 2025 |
| 7 Black Birch Ln | 2970-7 | Condo NL MDL-05 | $1,167,500 | $1,540,000
June 29, 2021 |
| 8 Black Birch Ln | 2970-8 | Condo NL MDL-05 | $1,171,900 | $1,393,524
August 30, 2017 |
| 9 Black Birch Ln | 2970-9 | Condo NL MDL-05 | $1,173,100 | $1,280,000
December 29, 2025 |
| 11 Black Birch Ln | 2970-11 | Condo NL MDL-05 | $1,386,600 | $1,585,000
October 3, 2019 |
| 15 Black Birch Ln | 2970-15 | Condo NL MDL-05 | $1,378,900 | $1,350,000
June 4, 2024 |
| 17 Black Birch Ln | 2970-17 | Condo NL MDL-05 | $1,155,400 | $1,076,062
September 13, 2016 |
| 19 Black Birch Ln | 2970-19 | Condo NL MDL-05 | $1,199,200 | $997,686
August 25, 2016 |
| 21 Black Birch Ln | 2970-21 | Condo NL MDL-05 | $1,085,700 | $1,210,168
February 21, 2017 |
| 23 Black Birch Ln | 2970-23 | Condo NL MDL-05 | $1,052,700 | $1,201,392
April 11, 2017 |
| 24 Black Birch Ln | 2970-24 | Condo NL MDL-05 | $1,275,700 | nominal ($1)
June 4, 2020 |
| 25 Black Birch Ln | 2970-25 | Condo NL MDL-05 | $1,082,200 | $1,137,899
December 21, 2016 |
| 27 Black Birch Ln | 2970-27 | Condo NL MDL-05 | $1,053,000 | $1,224,462
March 21, 2017 |
| 29 Black Birch Ln | 2970-29 | Condo NL MDL-05 | $1,109,800 | $1,065,000
February 23, 2026 |
| 30 Black Birch Ln | 2970-30 | Condo NL MDL-05 | $1,255,000 | $1,203,282
June 8, 2016 |
| 31 Black Birch Ln | 2970-31 | Condo NL MDL-05 | $1,042,800 | nominal ($100)
October 6, 2021 |
| 33 Black Birch Ln | 2970-33 | AFFORDABLE MDL-05 | $372,400 | $335,000
September 20, 2016 |
| 35 Black Birch Ln | 2970-35 | Residential Condominium | $1,034,300 | $1,175,000
December 6, 2016 |
| 37 Black Birch Ln | 2970-37 | AFFORDABLE MDL-05 | $372,400 | $335,000
August 17, 2017 |
| 38 Black Birch Ln | 2970-38 | Condo NL MDL-05 | $1,173,300 | nominal ($1)
July 9, 2018 |
| 39 Black Birch Ln | 2970-39 | Condo NL MDL-05 | $1,042,700 | nominal ($1)
April 14, 2025 |
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): 1 active tier-classified 21E site and 1 site with an Activity and Use Limitation. All MassDEP sites in Concord.
What this means
- Assessed 1042% above the median condo nl mdl-05 in Concord ($2,376,350, 68 parcels).
- The last sale price is 96% 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: Concord 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 11 Black Birch 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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