Architecture · Structural · MEP

One firm. Complete plan sets.
No coordination gap.

Most homeowners and GCs hire three separate consultants — an architect, a structural engineer, and an MEP engineer — and end up managing the coordination themselves. Affinity Design Group delivers a complete, coordinated plan set under one PE's oversight. One engagement. One point of contact. One set of drawings that actually align.

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Licensed PE #82726
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Custom Home Interior, with dark wood accents and indirect lighting.
The Problem

The coordination gap nobody warns you about

Most people building in California discover mid-project that they need more than structural engineering. They need architectural drawings. They need MEP — mechanical, electrical, plumbing. And they need all three disciplines to coordinate with each other before the city will approve a permit.

When you hire three separate firms, you inherit the coordination. The architect designs the layout. The structural engineer designs the load paths. The MEP consultant handles systems. But when the drawings from different firms don't align — and they often don't — the plan check correction comes back and nobody takes responsibility.

You're not a project manager. You shouldn't have to be.

The solution

Architecture, structural, and MEP — coordinated under one roof

Affinity Design Group handles all three disciplines in a single engagement. Daniel De Witte, P.E. #82726, provides PE oversight across the entire plan set — architecture, structural calculations, and MEP engineering — so every drawing coordinates before it's submitted.

What this eliminates:

  • No separate billing relationships with three firms

  • No coordination gaps between disciplines

  • No finger-pointing when drawings don't align

  • No discovering you need MEP after you've already paid for structural

  • No GC managing your consultants for you

What a complete plan set includes:

  • Architectural drawings — floor plans, elevations, sections, site plans

  • Structural engineering — calculations (seismic, wind, gravity), foundation design, framing plans, lateral system design, PE stamp

  • MEP engineering — mechanical (HVAC), electrical, and plumbing system design

  • Title 24 energy calculations

  • All disciplines reviewed for coordination before plan check submission

  • Plan check correction support included

Who we work with

Built for homeowners, GCs, and developers who want one firm — not three

How it works

Three phases. Full PE oversight. Zero surprises.

From the first call to the final inspection, every project is led by a licensed PE with direct access throughout.

01

Scope and quote

ou reach out. Within 24 hours you have a scoped brief covering every discipline your project requires, a firm quote, and a single point of contact. No ambiguity about what's included.

02

Coordinated plan set

Architecture, structural, and MEP are designed as an integrated package. All disciplines are reviewed for alignment before submission. Plans are checked against your city's plan check standards. PE stamp on delivery.

03

Construction support

When your permit is approved and construction begins, your PE stays directly available. RFIs, field questions, inspector issues — same business day.

Common questions

Frequently Asked Questions

Do I really need all three disciplines?

Can Affinity work alongside my existing architect?

What's the advantage over hiring each firm separately?

How is Affinity different from a design-build firm?

Ready to get a complete plan set?

Let's Talk About Your Home

Daniel will review your project, confirm the structural scope, and send you a written fee. No obligation.

Get a project scope

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