Updated: Jul 15, 2026
Location and Projects
Address
140 ELM STREET, Chestnut Hill, MA, 02467
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Gregory D. Callahan Architect
Gregory D. Callahan, 140 Elm St, Chestnut Hill, MA (Employee: Gregory S Callahan) holds a Architect license and 2 other licenses according to the Massachusetts license board.
Their BuildZoom score of 90 indicates that they are licensed or registered but we do not have additional information about them.
Their license was verified as active when we last checked. If you are thinking of hiring Gregory D. Callahan, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Gregory D. Callahan Services
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Gregory D. Callahan Contact Information
Phone Number: (781) 760-1984
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Address: 140 ELM STREET, Chestnut Hill, MA 02467
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Sub-panel separate electrical. in two family , addition electrical heat
Valuation:
N/A
Permit #:
07100560
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Upgrade exit service repair broken meter socket
Valuation:
N/A
Permit #:
05080289
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Wo # 14558816 fuses to breaker
Valuation:
N/A
Permit #:
W000023067
Status:
final
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Reno/service
Valuation:
N/A
Permit #:
05030413
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
EP-2007-0474
Status:
complete
Fee:
$43
Permit Type:
Addition/renovati...
Building Type:
N/A
Rewire kitchen & bathroom rewire &or correct wiring
Valuation:
N/A
Permit #:
40916_EL
Status:
issued
Fee:
$155
Permit Type:
N/A
Building Type:
N/A
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Verified License
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Gregory D. Callahan License info
Verified License
| License # | 50096 |
| Status | Active |
| State | Massachusetts |
| Type | Architect |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Gregory D. Callahan at the Commonwealth of Massachusetts E-Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 40049 |
| Status | Inactive |
| City | Newton |
| Type | Electrical Contractor |
- According to the City of Newton Massachusetts, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Gregory D. Callahan at the City of Newton Massachusetts.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CS-108387 |
| Status | Inactive |
| State | Massachusetts |
| Type | Building Licenses, Construction Supervisor |
- According to the Massachusetts Department of Public Safety, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Gregory D. Callahan at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
90
BuildZoom Score
Gregory D. Callahan Employees
GC
Gregory D. Callahan
Owner
GC
Gregory S Callahan
Owner