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Building Permit Data

Boulder County Community Planning & Permitting Department services are available virtually 8 a.m.–4:30 p.m. Monday, Wednesday, Thursday and Friday, and 10 a.m.–4:30 p.m. Tuesday. We are also NOW OPEN to walk-in customers (no appointment necessary) Monday, Wednesday, and Thursday from 9 a.m.–2 p.m. On Tuesdays the department is open by appointment only from 12:30–4:30 p.m.

Boulder County Building Permit Data

Search Building Permits

The Boulder County Community Planning & Permitting Department issues building permits for unincorporated areas of Boulder County. A building permit is required for any construction that physically changes or adds structures to your property, or for work regulated by County Codes.

View the Boulder County building permit and licensed contractors datasets.

For building permits within a town or city in Boulder County, please contact the municipality.

Open Data Terms of Use

View Boulder County Open Data Terms of Use.

For More Information:

Boulder County Community Planning & Permitting Department

2045 13th Street
PO Box 471
Boulder CO 80302
720-441-3926
EZBP@bouldercounty.org

BLDS Fields

The following is a description of each field in BLDS (Building and Land Development Specification) standard and how it is used by Boulder County. For more information about BLDS see permitdata.org.

PermitNum

Building Permit number.

Starting in 1980, the building permit is format is:

BP-yy-xxxx

Where yy is the two digit year and xxxx is a sequential number with leading zeros. The sequential numbering restarts each year.

Before 1980, the building permit is in the format BP-yy-xxxxx

Where yy is the two digit year and xxxx is a sequential number. The sequential numbering did not restart each year. The first permit, for unknown reasons starts with 4001. These were handwritten into a ledger that was then keyed into a database when building permits were first computerized in the 1980’s.

Irregularities and gaps in the sequential number are known to exist.

OriginalAddress1

The permit location’s address line 1.

The primary street address for the permit. This is the address for the location at the time the permit was applied for, the address may have changed since then.

OriginalAddress2

The permit location’s address line 2.

OriginalCity

The permit location’s City

For more recent permits, the City is the location associated with the ZIP code. Otherwise the City is may be the general location of the permit. Prior database systems did not include or require a City to be entered.

OriginalState

The permit location’s State

All permits are in Colorado. Prior database systems did not include or require a State to be entered.

OriginalZip

The permit location’s ZIP

The likely ZIP code for the location of the permit. The ZIP code may not be accurate for areas without postal delivery. Prior database systems did not include or require a ZIP to be entered.

PIN

Parcel Identifier Number, also known as Parcel Number

A 12-digit number representing the primary taxation parcel at the location of the permit at the time the permit was applied for.

Note that parcel number change may change over time. The parcel number for the permit may or may not have been updated to the new parcel number.

Note, current parcel data is available on Boulder County’s GIS Data Download webpage.

Description

This is an unconstrained text field that generally describes the specifics of the permit. The type of information, terminology, and abbreviations used vary greatly.

PermitType

The type of building permit issued. The exact name for the building permit type may have changed over the years. In Boulder County, one permit may include other activities that are covered by another permit. For example, constructing a new house often will only have one permit, and not separate permits for the mechanicals, roof, etc.

PermitTypeMapped

The permit type mapped to standardized values defined in the BLDS standard.

PermitTypeDesc

Description of the permit, when the PermitTypeMapped is Other.

PermitClass

General use classification of the permit. Values are based on the Census Bureau’s Building Permits Survey.

PermitClassMapped

The permit class mapped to standardized values defined in the BLDS standard.

StatusCurrent

The present status of the permit. The status names may have changed over the years.

StatusCurrentMapped

The permit status mapped to standardized values defined in the BLDS standard.

WorkClass

Not used

WorkClassMapped

Not used

ProposedUsed

The proposed use of the structure as derived from the PermitClass.

MasterPermitNum

Not used

ProjectName

Not used

ProjectID

Not used

AppliedDate

Date the building permit was submitted by the applicant for review. Note: Prior database systems did not include or require a date to be entered, in some cases 3/3/1933 and 3/3/1953 were used as a placeholder date when the date was not entered; in other cases the Issue Date was used as the Applied Date; in a few cases when the year was known but the date was not, January 1 was used.

IssuedDate

Date the building permit was issued by the Community Planning & Permitting Department. The gives permission for the contractor to start doing the work. Note: Prior database systems did not include or require a date to be entered, in some cases 3/3/1933 and 3/3/1953 were used as a placeholder date when the date was not entered; if the year was known but the date was not, January 1 was often used.

CompletedDate

Date the building permit was closed. Typically this is when all inspections were completed satisfactory and work by the contractor is completed. Note: Prior database systems did not include or require a date to be entered, in some cases 3/3/1933 and 3/3/1953 were used as a placeholder date when the date was not entered; if the year was known but the date was not, January 1 was often used.

StatusDate

Date the PermitStatus was last updated. Note: Prior database systems did not include or require a date to be entered, in some cases 3/3/1933 and 3/3/1953 were used as a placeholder date when the date was not entered; if the year was known but the date was not, January 1 was often used.

ExpiresDate

Date the permit was expired. A building permit is valid for 180 days after issuance. The permit will expire if the work authorized under the permit is not commenced within 180 days, or work is stopped at any time after the work is commenced for a period of 180 days. Note: Prior database systems did not include or require a date to be entered, in some cases 3/3/1933 and 3/3/1953 were used as a placeholder date when the date was not entered; if the year was known but the date was not, January 1 was often used.

COIssuedDate

Date a Certificate of Occupancy was issued. Certificates of Occupancy were issued for buildings other than single family residences beginning in 1959 and for single family residences beginning in 1976. Certificates of Occupancy are not required for buildings constructed before these dates. The county does not issue Certificates of Occupancy for additions to or remodels of one- and two-family dwellings. Certificates of occupancy are not issued for garages, sheds, or agricultural buildings. Note: Prior database systems did not include or require a date to be entered, in some cases 3/3/1933 and 3/3/1953 were used as a placeholder date when the date was not entered; if the year was known but the date was not, January 1 was often used.

HoldDate

Date that the review or processing of the permit has stopped. Typically this is the review or processing will not resume until the applicant submits additional information or payment. Note: Prior database systems did not include or require a date to be entered, in some cases 3/3/1933 and 3/3/1953 were used as a placeholder date when the date was not entered; if the year was known but the date was not, January 1 was often used.

VoidDate

Date the applicant withdrawn the permit from review. This is typically done when the applicant no longer plans to do the work. Note: Prior database systems did not include or require a date to be entered, in some cases 3/3/1933 and 3/3/1953 were used as a placeholder date when the date was not entered; if the year was known but the date was not, January 1 was often used.

TotalSqFt

The total floor area square footage of the working being done. For instance, this the total square footage of the building if a new building is constructed; while it is only the square footage of the area that is be renovated or added.

AddedSqFt

Not used

TotalFinishedSqFt

The portion of the TotalSqFt that is classified as finished space.

TotalUnfinishedSqFt

The portion of the TotalSqFt that is classified as unfinished space. Typically outbuildings, unfinished basements, crawl-spaces, attics, etc.

TotalHeatedSqFt

Not used

TotalUnHeatedSqFt

Not used

TotalAccSqFt

The portion of the TotalSqFt of the structures that are classified as garages, greenhouses, or other outbuildings.

TotalSprinkledSqFt

Not used

Units

Not used (Note, all units are in square feet).

EstProjectCost

The estimated value of construction as either provided by the applicant, or calculated by staff.

Fee

The total fee paid by the applicant, including all fees, taxes and credits.

ContractorCompanyName

The name of the licensed contractor.

ContractorTrade

The type of work the contractor is licensed to do.

ContractorTradeMapped

The ContractorTrade mapped to standardized values defined in the BLDS standard.

ContractorLicNum

The Boulder County contractor license number. When the owner and not a contractor is doing the work, this value represents who or the type of work they are doing.

ContractorStateLic

Not consistently used. Typically the state the contractor is located in.

ContractorFullName

Not used.

ContractorCompanyDesc

Not used.

ContractorPhone

Phone number of the primary contractor for contractor’s license.

ContractorAddress1

Mailing address line 1 of primary contractor for contractor’s license.

ContractorAddress2

Mailing address line 2 of primary contractor for contractor’s license.

ContractorCity

Mailing address city of primary contractor for contractor’s license.

ContractorState

Mailing address state of primary contractor for contractor’s license.

ContractorZip

Mailing address Zipcode of primary contractor for contractor’s license.

ContractorEmail

Email of the primary contractor for contractor’s license.

Link

The web URL for an online record of the permit. The online record may also contain scans of the application, permit and other related documents.

Publisher

Always Boulder County, Colorado

Contact Us

Building Safety & Inspection Services

Email: Ask a Building Official
Main: 303-441-3926

Courthouse Annex Building

2045 13th Street
Boulder, CO 80302
Hours are Monday, Wednesday and Thursday from 9 a.m. to 2 p.m. On Tuesdays the department is open by appointment only from 12:30–4:30 p.m.
Map & Directions

Mailing Address

Building Safety & Inspection Services
PO Box 471
Boulder, CO 80306
bouldercounty.gov