Updated: Apr 21, 2026
Location and Projects
Address
Watertown, MA, 02472
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Jonathan S. Keller Architect
Their BuildZoom score of 0 does not rank in the top 50% of Massachusetts contractors.
If you are thinking of hiring Jonathan S. Keller, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
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Jonathan S. Keller Contact Information
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Library temporary;certificate for library (staffing and equipment installation - under 50 persons) - to expire in 60 days on 6/5/2017. alt517664 issued: 10/28/2015 sf520841 issued: 9/24/2015 &; a674373 issued: 2/8/17 ;
Valuation:
$7,112,836
Permit #:
COO678318
Status:
complete
Fee:
$320
Permit Type:
N/A
Building Type:
Commercial
Renovation of existing office space on floors 3 &; 5. work includes demolish of interior partitions new drywall partitions bathroom renovations relocated sprinkler heads minor fire alarm work and other misc. architectural upgrades
Valuation:
$350,000
Permit #:
ALT574015
Status:
filed
Fee:
$4,119
Permit Type:
N/A
Building Type:
Commercial
Renovation of existing office space on floors 4 &; 6. work includes demolish of interior partitions new drywall partitions bathroom renovations relocated sprinkler heads minor fire alarm work and other misc. architectural upgrades
Valuation:
$350,000
Permit #:
ALT574020
Status:
filed
Fee:
$4,116
Permit Type:
N/A
Building Type:
Commercial
An exterior door leading from the interior of the building to a patio was reversed. originally the door opened from the exterior of the building to the interior. the change now has the door swinging from the interior to the exterior. no emergency egress changed with the reversal of the door. occupancy load on the patio was reduced to 49 people. alt #: 517664
Valuation:
$0
Permit #:
A674373
Status:
OPEN
Fee:
$26
Permit Type:
Other
Building Type:
Other
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Jonathan S. Keller License info
License Not Verified
| License # | 6939 |
| Status | Active |
| State | Massachusetts |
| Type | Architect |
- When BuildZoom last verified this license, it had an expiration date of August, 2023. Check the current license status of Jonathan S. Keller with the Commonwealth of Massachusetts E-Licensing Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 6939 |
| Status | Active |
| State | Massachusetts |
| Type | Architect |
- When BuildZoom last verified this license, it had an expiration date of August, 2014. Check the current license status of Jonathan S. Keller with the Massachusetts Department of Consumer Affairs and Business Regulation
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 6939 |
| Status | Inactive |
| State | Massachusetts |
| Type | Electrician |
- According to the Commonwealth of Massachusetts E-Licensing Board, 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 Jonathan S. Keller at the Commonwealth of Massachusetts E-Licensing Board.
This is a sample of licensing data; click here to access a complete history.
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Jonathan S. Keller Employees
JK
Jonathan S. Keller
Owner