Municipal permitting reference

How building permits work in Boulder

Boulder building permits are issued by the Building Safety Division of Planning & Development Services under the Colorado Building Code (2015 IBC/IRC as locally amended) and the Land Use Code (LUC). Boulder's Growth Management System limits population growth and density; the floodplains along Boulder Creek and South Boulder Creek are strictly regulated. A mandatory Green Building Program requires energy efficiency beyond code for most projects. Permits are submitted through Accela Citizen Access; inspections are scheduled via the MyBoulder app.

Responsible authority
City of Boulder — Planning & Development Services, Building Safety Division
Indicative planning range
Residential: 4–10 weeks. Commercial: 8–20 weeks. Use review or site review hearing adds 2–4 months.

Planning orientation only; not a municipal service guarantee.

Typical permitting sequence

  1. 1

    Check Land Use Code (LUC) zoning and Growth Management System allocations

    Identify the parcel's LUC zone (RL-1, RH-2, BT-1, BC, etc.) and confirm that the proposed use and density are by-right. Boulder's Growth Management System (GMS) limits residential growth through an annual allocation process — multi-family projects may require a GMS allocation before other approvals can proceed.

  2. 2

    Site review or use review hearing if thresholds are exceeded

    Projects that exceed density, height, or use thresholds in the LUC require a Site Review (for design-intensive projects) or Use Review (for conditional uses) hearing before the Planning Board. Inclusionary Housing requirements apply to all projects of 4 or more dwelling units. Allow 2–4 months for the hearing cycle.

  3. 3

    Floodplain Use Permit if in 100-year or 500-year floodplain

    Properties within the mapped 100-year or 500-year floodplain of Boulder Creek, South Boulder Creek, or other waterways require a Floodplain Use Permit from Utilities / Floodplain Administration before a building permit is issued. Post-2013 flood events have expanded regulated areas — verify current FEMA maps.

  4. 4

    Submit building permit via Accela Citizen Access

    Apply through the Accela portal with IBC-compliant stamped drawings, an energy compliance report meeting Boulder's Green Building Program requirements, stormwater quality management plan (if applicable), and contractor license information. Pay intake fees at submission.

  5. 5

    Multi-discipline plan review

    Building Safety reviewers check plans for IBC/IRC compliance (structural, accessibility), LUC zoning compliance, Green Building Program energy requirements, and fire protection. Projects with floodplain permits receive concurrent floodplain compliance review. Correction letters are issued through Accela.

  6. 6

    Staged inspections via MyBoulder app

    Schedule all inspections through the MyBoulder app. Required stages: footing, framing, insulation (must meet Green Building Program R-values), MEP rough-ins, any special inspections, and final. Floodplain projects require an inspection confirming lowest-floor elevation before framing proceeds.

  7. 7

    Certificate of Occupancy

    After all inspections pass and Green Building Program documentation is submitted, Building Safety issues the Certificate of Occupancy. For residential projects subject to Green Building requirements, a post-construction energy audit or HERS rating may be required before the CO is issued.

Common permit categories

  • • Building Permit (Residential)
  • • Building Permit (Commercial)
  • • Electrical
  • • Plumbing
  • • Mechanical
  • • Floodplain Use Permit
  • • Demolition

Local considerations

  • • Boulder's Green Building Program requirements exceed the state energy code — confirm current point thresholds with Planning & Development Services before design development.
  • • The 2013 flood significantly expanded Boulder Creek and South Boulder Creek floodplains — verify current FEMA Flood Insurance Rate Maps rather than relying on pre-2013 data.
  • • Inclusionary Housing applies to all projects of 4+ dwelling units: typically 20% of units must be permanently affordable or the developer pays a cash-in-lieu fee.
  • • Boulder's historic districts (Mapleton Hill, Chautauqua, portions of Downtown) require Landmarks Design Review Committee approval for exterior changes before building permits are issued.
  • • The Accela portal and MyBoulder app are the primary interfaces — set up accounts before the permit submittal date.

Primary municipal reference

Use the municipality's site for authoritative forms, fees, current service standards, codes, portal access, and project-specific requirements.

Open the official Boulder permit resource

Analyze actual permit activity

Compare this process overview with current municipality-reported filing counts, permit types, maps, neighborhoods, and address history.

View Boulder, CO permit statistics
How Building Permits Work in Boulder: Process & Timeline | PropertyLab