MEP permit drawings in Denver, CO.

The 2025 Denver Building and Fire Code took effect on December 31, 2025, and new projects submitted after that date must be drawn to it. Denver's Community Planning and Development (CPD) department reviews permit drawings. Suburbs such as Aurora, Lakewood and Englewood adopt their own editions, so a Denver set may need changes for a neighbouring city.

• Building & residential — 2024 IBC and IRC with Denver amendments
• Electrical — 2023 NEC
• Plumbing & mechanical — 2024 IPC and IMC with Denver amendments
• Energy — 2021 IECC with Denver amendments

• City and County of Denver — Community Planning and Development (CPD)
• Aurora — Building Division
• Lakewood, Englewood & Littleton — each city's building department
• Arvada, Westminster & Thornton — each city's building division
• Unincorporated Arapahoe, Jefferson & Adams counties — county building departments

• High altitude — gas appliance input and equipment ratings adjusted for Denver's 5,280 ft elevation.
• Heating loads — Manual J/S/D for cold climate zone 5B, including heat-pump sizing for all-electric designs.
• Energy code — Denver's amendments to the 2021 IECC and the compliance documentation they require.
• EV chargers and solar — NEC load calculations and panel capacity.
• Residential mechanical plans — furnace, boiler and heat-pump layouts with duct and vent routing.

• Electrical — power and lighting plans, panel schedules, load calculations and single-line/riser diagrams (NEC as adopted by Denver)
• Plumbing — fixture layouts, water supply sizing, DWV isometrics and gas piping (IPC as adopted)
• HVAC / mechanical — duct layouts, equipment schedules, ventilation and Manual J/S/D load calculations (IMC as adopted)
• Energy compliance — IECC compliance and Manual J/S/D calculations
• Fire protection — sprinkler layouts, hydraulic calculations and fire alarm plans (NFPA 13/13R/13D, NFPA 72) where your project needs them

Trade-specific details: electrical, plumbing, HVAC and fire protection permit drawings.

Commercial MEP drawings in Denver generally need a Colorado-licensed engineer's seal. Many single-family projects don't. Engineers who seal drawings in Colorado are licensed by the Colorado State Board of Licensure for Architects, Professional Engineers and Professional Land Surveyors.

If your project needs sealed MEP drawings, we confirm during scoping whether a Colorado-licensed engineer can seal your discipline and scope, and we put that in writing in your quote. If we can't arrange the seal for your project, we tell you up front, so you can have your own engineer of record review and seal the set. You never pay for drawings you can't submit.

1. Send your plans — upload architectural floor plans (PDF or DWG) on our quote page, by WhatsApp or by email.
2. Quick Zoom call (optional) — we confirm scope and the Denver submittal checklist.
3. Fixed quote — price and delivery date in writing within one business day.
4. Drafting with updates — residential sets usually take 5–7 business days, light commercial 7–14, with progress updates on WhatsApp or email.
5. Submittal & plan-review comments — PDF and DWG files ready to upload; we revise for city comments at no extra charge until approval.