Addition Permits in Boulder, CO

Browse building addition permits including home extensions, room additions, and property expansions permit records available from Boulder, CO. Addition contractors can use the source date, project scope, and available record details to research published project activity. A permit is a project signal, not a request for bids. The newest displayed source record is dated 2026-09-11.

23
Last 30 Days
0
Last 7 Days
$11,811
Avg. listed value
2026-09-11
Newest source record

Boulder Addition Market Overview

Boulder's addition permit activity is currently slowing, with 23 permits filed in the last 30 days compared to 40 in the prior 30-day window. On average, 33.7 addition permits are filed per month here based on the last six months of data. The most active addition contractors in Boulder include PHOTON BROTHERS, BOULDER CREEK BUILDERS LLC, ENERGY TRANSITION PARTNERS INC dba.

Recent Addition Permits in Boulder

Date Address Description Reported Value Status
2026-09-11 865 34TH ST in-property water and wastewater connections to AD... Not listed on permit Filed
2026-09-11 3155 KITTRELL CT new main level deck and entry, upper level additio... Not listed on permit Filed
2026-09-10 5505 AIRPORT BLVD Minor remodel of existing main floor suite (1,100 ... Not listed on permit Filed
2026-09-08 120 S 31ST ST Addition of Mini-Split System. Electrical to be do... $4,062 Issued
2026-09-04 865 34TH ST NFPA13D IN ADU $6,985 Issued
2026-09-03 890 30TH ST in-property wastewater connection to ADU Not listed on permit Filed
2026-09-03 1380 ITHACA DR Single Family Home remodel. Work was completed and... Not listed on permit Filed
2026-09-02 3147 8TH ST Touch Screen Boiler Controller: ? Express setup? R $24,388 Issued
2026-08-31 1064 GAPTER RD ESS addition to existing PV system Not listed on permit Filed
2026-08-28 1645 SUNSET BLVD Addition of 15kwh franklin battery backup system t Not listed on permit Filed

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Frequently Asked Questions

How many Addition permits were filed in Boulder in the last 30 days?
Boulder has 23 addition permits dated in the last 30 days in the source records currently available on PermitGrab.
What types of Addition work require permits in Boulder?
In Boulder, permits are typically required for building addition permits including home extensions, room additions, and property expansions. Always check with Boulder's building department for specific requirements.
How can a Addition business research project activity in Boulder?
Use PermitGrab to review matching addition permit records from Boulder’s public source. Use the displayed source date, project scope, and available record fields to research published project activity; a permit is not a request for bids.
How quickly are Addition permits updated on PermitGrab?
The newest displayed source record is dated 2026-09-11. PermitGrab checks the source on each collection cycle and publishes newer records after the source makes them available.

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