Permit Office (AHJ)
City of Spokane Development Services
Spokane, WA · Licensed Professional Engineering
Apex Grid Engineering provides MEP engineering for commercial projects in Spokane, WA — mechanical, electrical, and plumbing systems designed as one coordinated package by licensed PEs and sealed for permit through City of Spokane Development Services. A veteran-owned firm licensed in 49 states, with 10+ licensed PEs on a 20+ engineer team — quotes within 12–24 hours on qualifying scopes.
Spokane MEP design must handle cold winter heating and freeze protection without overlooking hot, smoky summer conditions. We coordinate outdoor-air filtration and economizer controls with the serving Avista territory and document commercial energy compliance against the current Washington code.
Code adoptions and local amendments change on multi-year cycles. The state source verification date is 2026-07-28; we verify the governing editions with City of Spokane Development Services at project kickoff.
Commercial applications are submitted to Development Services, which routes paid plan-review packages to the departments responsible for approval. Applicants can track permit status through the city's online permit system, and the city recommends early consultation for projects with special land-use or engineering requirements.
Spokane adopts local construction provisions through Title 17F of the municipal code in addition to Washington's statewide amendments. Project teams should check the current city code pages for administrative, fire, and discipline-specific local provisions before submittal.
Avista provides electric service in Spokane and coordinates new commercial service and energy-efficiency programs. Water and wastewater connections inside city limits are coordinated with the City of Spokane.
Spokane functions as the commercial center for the Inland Northwest, with sustained healthcare, higher-education, manufacturing, warehouse, and downtown reinvestment activity. The mix creates demand for both new facilities and technically complex renovation work.
Reviewed 2026-09-10. Code editions and local requirements can change; confirm the current requirements with the authority having jurisdiction before design.
With a team of licensed PEs and a multi-discipline engineering team, we're ready to take on projects of any size — and we turn quotes around fast. Send us your scope and get a clear proposal: deliverables, timeline, and fee.
Request a ProposalReviewed and sealed by licensed PEs. “Solid engineering and clear communication from start to finish.” — Jason Mitchell, Principal Architect
Tell us what you need and where the project is — quotes back within 12–24 hours on qualifying scopes.