Permit Office (AHJ)
City of Wilmington Department of Licenses and Inspections
New Castle County · Delaware
MEP, structural, civil, and energy-compliance engineering for Wilmington projects — permitted through City of Wilmington Department of Licenses and Inspections and designed to the city's adopted codes and amendments.
Permit stuck waiting on a seal? Apex Grid's licensed engineers provide fast review-and-seal for drawings in Wilmington and across New Castle County — reviewed under responsible charge and sealed for submittal to City of Wilmington Department of Licenses and Inspections. Typical turnaround is 3–5 business days once we have a complete package.
Coordinated mechanical, electrical, and plumbing design — engineered as one system, stamped by licensed professionals, and documented for fast permit approval.
Structural systems designed to the loads your state actually imposes — gravity, seismic, wind, and snow — with drawings built to get approved the first time.
Site engineering that clears local review — grading, drainage, and utilities designed to each jurisdiction's published standards from day one.
Energy compliance handled as engineering, not paperwork — documentation matched to the exact code edition your permitting jurisdiction enforces.
Wilmington's zoning, flood-damage-prevention, stormwater, historic-district, and public-works requirements supplement the locally adopted IBC. State Fire Marshal life-safety review may add a separate approval path for commercial work.
The city market combines financial and corporate offices, healthcare, higher education, government, adaptive reuse, and residential-to-mixed-use redevelopment. Riverfront and I-95 corridor investment keeps utility, flood, transportation, and constrained urban-site coordination important.
Reviewed 2026-09-11. Code editions and local requirements can change; confirm the current requirements with the authority having jurisdiction before design.
Commercial permit applications are routed through Wilmington's permit and plan-review process, with building, zoning, fire, accessibility, and trade reviews coordinated as applicable. New Castle County and Delaware State Fire Marshal reviews can be separate from the City permit, so the parcel and occupancy should be confirmed with each reviewing authority before submission.
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.