The Short Answer
To start MEP design, an engineer needs the architectural background drawings, the project address, a description of the intended use and occupancy, any existing MEP information for renovations, and your permit timeline. With those items we can identify code requirements, size systems, and produce a scope and fee proposal quickly. Missing information leads to follow-up questions and delays, so sending a complete package upfront saves everyone time.
Architectural Backgrounds
The most important item is the architectural floor plan. MEP systems are laid out on top of the architectural plan, so we need current backgrounds — ideally in CAD or PDF — showing walls, doors, room names, ceiling heights, and fixture locations. For projects with a reflected ceiling plan (RCP), send that too; it drives lighting, diffuser, and sprinkler coordination.
Project Address and Occupancy
The address establishes the applicable code edition, climate zone, and utility providers. The occupancy type and use — office, restaurant, retail, medical, warehouse — determines ventilation rates, plumbing fixture counts, electrical loads, and life-safety requirements. Tell us how many occupants you expect and how each space will be used.
Existing Conditions for Renovations
For tenant improvements and renovations, information about existing systems accelerates the work. Helpful items include the existing electrical panel schedules and available capacity, existing HVAC equipment data, existing plumbing routing, and photos of mechanical and electrical rooms. If drawings are unavailable, field verification or photos of equipment nameplates help us document what's there.
Equipment and Program Requirements
Special equipment drives MEP design. Kitchen equipment schedules, medical or lab equipment, server rooms, process loads, and specialty ventilation needs should be shared early. If tenants or owners have preferences on systems, controls, or product standards, note those so the design reflects them from the start.
Timeline and Deliverables
Tell us your permit submittal target or construction start date. If there's a hard deadline, we can plan resources accordingly. Also let us know the deliverable expected — permit set, construction documents, or design-assist — so the scope matches your needs.
When It Applies
This checklist applies to nearly every commercial MEP project: new construction, tenant improvements, restaurant build-outs, change of occupancy, and equipment additions. Even for small scopes, sending the architectural background and a clear description of the work lets us confirm what's required and respond fast.
Frequently Asked Questions
What if I don't have every document yet?
Send what you have with a note about what's missing. We'll review it, tell you what additional information is needed, and get the scope defined early rather than waiting for a complete package.
Do you need drawings in CAD or is PDF fine?
PDF is fine to start and to scope. CAD backgrounds speed production because we can draft directly over them, but we can work from PDFs when CAD isn't available.
Do you coordinate with the architect and structural engineer?
Yes. MEP design is coordinated with the architectural and structural documents. Our architecture partner or project-specific architecture and structural teams make that coordination faster on integrated projects.