Directory / Portsmouth / Building
Callahan Construction Managers
4 permits across 1 town in the last 6 months
Building
Business contact from Portsmouth OpenGov record (signed-in), checked Nov 13, 2026. Not from permit records.
Activity by month
Permits filed each month. The first and last months are partial.
Where they’re working
Permits filed under this contractor by state and town, last 6 months.
New Hampshire 4
Types of projects
By place, trade and period
| Town / city | State | Trade | Last 90 days | Last 6 months | All documented |
|---|---|---|---|---|---|
| Portsmouth | NH | Building | 0 | 4 | 4 |
Permit timeline
- May 15, 2026This application is for the garage building. 5781 Gross Sq/Ft. Details of construction are as depicted in the most recenPortsmouth · Building · Residential · 1 · #BLDG-26-301
- May 15, 2026Mirrored Version of Building Type 3D as previously approved application BLDG-25-666. This application is for 119-127 PagPortsmouth · Building · Residential · 1 · #BLDG-26-300
- May 15, 2026Same building type 3A as previously approved permit application BLDG-25-664 This application is for 135 Page St (buildinPortsmouth · Building · Residential · 1 · #BLDG-26-299
- May 15, 2026Same Building Type 3D as previously approved application BLDG-25-666. This application is for 31-39 Sifton St (building Portsmouth · Building · Residential · 1 · #BLDG-26-298
Permit counts reflect permits filed in public town records naming this contractor as applicant. A permit shows permitted activity, not necessarily completed work, quality of work, or a final inspection.
License
We haven’t verified a state license for this name yet. We only show license details when we can match the record to this contractor with confidence. You can check directly at the New Hampshire Office of Professional Licensure and Certification (OPLC) license lookup.
Is this your business?
Claim this profile for free to correct details and share it. Upgrade for $9/mo to add photos, a description and an enhanced contact form. Your phone number and quote button stay free. Your permit activity is shown the same way either way.
Sources
- Portsmouth OpenGov portal · retrieved Nov 13, 2026
Not verified: contact info, business address, insurance, reviews. Page built Nov 13, 2026.