Public Works and Development

COVID-19 Service Update

Lima Street office open by appointment only. Office hours are Monday-Friday, 8 a.m. – 4:30 p.m. Please call 720-874-6600 to make an appointment and when you arrive so that a staff member can assist you with entrance to the building.

Use Citizen Access for BuildingEngineering and Planning cases, permits, applications and more. 

If you call one of our divisions, it's very important to leave detailed voice messages with your return contact information. Many office phones are forwarded. 

  • Building: Inspections (residential & commercial) have resumed and will be scheduled based on site-specific conditions. Info at, 720-874-6600 or 
  • Planning: 720-874-6650 for planning services or use Citizen Access to check project status 
  • Zoning: 720-874-6711 or email for zoning, subdivision and weed regulations and enforcement 
  • Engineering: 720-874-6500 for general inquiries or Citizen Access to check project status 
  • Animal control: 720-874-6750 or email for field response, complaints, reports or other questions 
  • Records requests: 720-874-6500 or email for unincorporated parts of the County 
  • Mapping: 720-874-6686 for services 
  • Road & Bridge: 720-874-ROAD (7623) for questions about current projects and/or request for service 
  • Transportation/Traffic: call 720-874-6500 for questions about current projects or traffic service requests 

The Public Works department strives to enhance the quality of life within unincorporated Arapahoe County. It provides safe, effective transportation, and building of communities through quality planning, design, construction and maintenance in the following areas.

We’re Hiring! Arapahoe County seeks highly motivated and collaborative professionals committed to public service. We are hiring for a variety of positions. View our current job openings..

What We Do

Building - Code enforcement, plan review, permits, inspection and certificates of occupancy
Engineering - Infrastructure review, floodplain and stormwater regulations, permits and inspections
Oil/Gas and Energy - Permit Applications for exploration and production facilities
Planning and Land Development - Development review and land use planning
Road and Bridge - Maintenance, snow removal, potholes and more
Transportation - Studies, capital infrastructure projects, regional projects and traffic engineering/operations/ITS

Other areas of operations include: 
Animal Control - Regulations, complaints and animal welfare
Mapping and GIS - Mapping support and geographically linked data
Weed Control - Mitigation of noxious weeds
Zoning - Land Development Code regulations enforcement

Helpful resources/information:
License, Permits and Approvals
Public Notices
Guidance of Colorado Open Records Act for departmental records

Need a quick answer? Learn more about Public Works ON CALL

Setting the standard in public works and development

In 2018, Arapahoe County Public Works became the 137th agency in North America and the first County in Colorado to earn accreditation through the American Public Works Association. Less than one percent of the nation’s public works agencies have earned this distinction. Accreditation symbolizes the department’s commitment to continual improvement to the quality of life for Arapahoe County citizens.