Updated: May 19, 2026
Location and Projects
Address
334 HARVARD ST #G4, Cambridge, MA, 02139
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Campbell H Ellsworth Architect
Their BuildZoom score of 91 ranks in the top 37% of 139,240 Massachusetts licensed contractors.
If you are thinking of hiring Campbell H Ellsworth, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Campbell H Ellsworth Services
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Campbell H Ellsworth Contact Information
Phone Number: (617) 492-0709
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Address: 334 HARVARD ST #G4, Cambridge, MA 02139
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Exploratory internal only non-structural demolition in a single family house by the owner
Valuation:
$5,000
Permit #:
B21-000232
Status:
issued
Fee:
N/A
Permit Type:
Residential alter...
Building Type:
N/A
Renovation of an owner occupied single family house at 10 james street
Valuation:
$350,000
Permit #:
B21-000634
Status:
issued
Fee:
N/A
Permit Type:
Residential renov...
Building Type:
N/A
Install basement sump pump with 2 chamber cultek system in back yard
Valuation:
$3,500
Permit #:
B21-001333
Status:
issued
Fee:
N/A
Permit Type:
Residential alter...
Building Type:
N/A
Partial demo of existing single family house, and the creation of 3 as-of-right units. part of the existing basement level will be used for a garage area for 3 cars, with a lowered driveway. install new sprinkler system and required site drainage.
Valuation:
$475,000
Permit #:
BLDM-063736-2017
Status:
issued
Fee:
N/A
Permit Type:
Addition / Altera...
Building Type:
N/A
Total renovation of existing single family home - demolish 1-story rear section (37.5 sq ft); remove roof and rebuild w 3rd floor dormer; reframe all floors; remove existing basement slab; new slab; addition small deck in rear; rebuild front steps
Valuation:
$285,765
Permit #:
BLDR-053600-2017
Status:
issued
Fee:
N/A
Permit Type:
Addition alteration
Building Type:
N/A
Partial demolish of existing single family house and the creation of 3 as-of-right units. part of the existing basement level will be used for a garage area for 3 cars with a lowered driveway. install new sprinkler system and required site drainage
Valuation:
$475,000
Permit #:
BLDM-063736-2017
Status:
issued
Fee:
N/A
Permit Type:
Addition alteration
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
CO-077563-2018
Status:
issued
Fee:
N/A
Permit Type:
Building alterati...
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
DEMO-076386-2018
Status:
issued
Fee:
N/A
Permit Type:
Building
Building Type:
N/A
Addition a new dormer to rear of 3rd floor. addition eyebrow window on front roof of 3rd floor
Valuation:
$115,000
Permit #:
ALT380093
Status:
complete
Fee:
$1,239
Permit Type:
N/A
Building Type:
1-2fam
Frame new non-bering walls. frame new handicap enterance. install new blue board and ??? coat ceiling. install new wood floor and new tile floor. install new ceramic tiles on kitchen walls. install new ???? new plumbing new electrical new fire alarm and new hvac
Valuation:
N/A
Permit #:
11014_BP
Status:
applied
Fee:
$4,408
Permit Type:
N/A
Building Type:
N/A
Interior non-structural demolition. removal of plaster lath hardwood floors appliances cabinets
Valuation:
$5,000
Permit #:
BLDR-055163-2017
Status:
issued
Fee:
N/A
Permit Type:
Addition alteration
Building Type:
N/A
Gut renovation of existing single family home
Valuation:
$280,765
Permit #:
BLDR-053599-2017
Status:
issued
Fee:
N/A
Permit Type:
Addition alteration
Building Type:
N/A
Renovation of existing house
Valuation:
$215,000
Permit #:
BLDR-032071-2015
Status:
issued
Fee:
N/A
Permit Type:
Addition alteration
Building Type:
N/A
New single family new single family
Valuation:
$215,000
Permit #:
BLDR-032304-2015
Status:
issued
Fee:
N/A
Permit Type:
New
Building Type:
N/A
Complete renovation of 8 unit building including sprinkler fire alarm elevator
Valuation:
$2,735,065
Permit #:
BLDC-029247-2015
Status:
issued
Fee:
N/A
Permit Type:
Addition alteration
Building Type:
N/A
Partial demolition 38sf
Valuation:
N/A
Permit #:
DEMO-053281-2017
Status:
issued
Fee:
N/A
Permit Type:
Building
Building Type:
N/A
Partial demolition 74sf
Valuation:
N/A
Permit #:
DEMO-053276-2017
Status:
issued
Fee:
N/A
Permit Type:
Building
Building Type:
N/A
Interior renovation of existing 2nd floor apartment
Valuation:
$25,600
Permit #:
BLDM-017931-2014
Status:
issued
Fee:
N/A
Permit Type:
Addition alteration
Building Type:
N/A
Construct single family dwelling
Valuation:
$420,000
Permit #:
BLDR-028637-2015
Status:
issued
Fee:
N/A
Permit Type:
New
Building Type:
N/A
Plan review - building 3 new condos foundation is complete all new electrical plumbing hvac insulation board & finish fire protection systems
Valuation:
N/A
Permit #:
10461_BP
Status:
applied
Fee:
$8,550
Permit Type:
N/A
Building Type:
N/A
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Campbell H Ellsworth License info
License Not Verified
| License # | 8740 |
| Status | Active |
| State | Massachusetts |
| Type | Architect |
- When BuildZoom last verified this license, it had an expiration date of August, 2025. Check the current license status of Campbell H Ellsworth 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 # | 215210 |
| Status | Active |
| City | Newton |
| Type | Building Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of Campbell H Ellsworth with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 215210 |
| Status | Active |
| City | Newton |
| Type | Residential Builder |
- When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of Campbell H Ellsworth with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 103393 |
| Status | Active |
| City | Newton |
| Type | General Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of Campbell H Ellsworth with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 103393 |
| Status | Active |
| City | Newton |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of Campbell H Ellsworth with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 135958 |
| Status | Inactive |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- According to the Mass.gov Consumer Affairs and Business Regulation, 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 Campbell H Ellsworth at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CS-078813 |
| 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 Campbell H Ellsworth at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
91
BuildZoom Score
14
Permits
- Building permit records show that Campbell H Ellsworth has worked on 14 permitted projects.
Campbell H Ellsworth Employees
CE
Campbell Ellsworth
Owner
CE
Campbell H Ellsworth
Owner