Founding Interplan Office - Lemont, IL - 1972
Interplan team at work Team meeting at the Interplan office
Forward-Thinking Since 1972 Collaborators

We’ve been here a while, 50 years and counting to be exact, and we’ve got the lessons learned to prove it. Throughout this time, we have seen the importance of having the necessary Architecture, Engineering, and Permitting services all in-house. This is why we are a full-service firm. We’ve developed a sense of know-how that puts us a step ahead of problems and provides foresight that our clients can trust.

Meet the Leaders
A Streamlined Process from Start to Finish

All our services together under one roof.

As a single-source firm, we achieve better drawing coordination, team communication, overall higher quality, and consistency for our clients.
It just makes a whole lot of sense.

  • Architecture
  • MEP Engineering
  • Civil Engineering
  • Permitting
  • Interior Design
  • ADA Services
At home, anywhere

Licensed in all 50 states, we serve some of the country’s largest brands on some of their most challenging endeavors. We help develop relationships at each local jurisdiction level, to help preempt surprises, and ensure a smooth process along the way.

Portfolio Highlights
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Don’t see what you’re looking for? We have case studies galore! Contact us, and we’ll get the right project profiles sent right to your inbox.

Our Niche
nationwide Restaurant and retail development.

Our in-house teams have become the go-to experts at designing and executing new retail or restaurant store locations coast-to-coast.

We also love the unexpected and unique challenge of specialty projects. The A-players we’ve recruited can handle just about anything you throw at them.

Niche Expertise
Corporate Restaurant is Complex

Ground-up or remodel initiative, the planning and communication involved can be overwhelming for corporate restaurant programs. Let our deep expertise spare you cost overages and project delays.

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Corporate Retail is Different

New corporate retail store or remodel initiatives must mercilessly prioritize the product. For that reason, careful planning and consideration while designing the Architecture and Engineering systems should be second nature. Choose Interplan for your next corporate retail program success.

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Specialty Franchise is Specific

The design of a franchise doggy daycare, swim school, wellness/spa, specialty retail, fitness, or child care facility is unique. We know how important due diligence is to prevent costly downstream permitting pitfalls.

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Franchise Restaurant is Layered

With franchise restaurants, there are many levels of stakeholders who all have different perspectives, priorities, and needs. We’ve got you covered; we’re active, empathetic listeners, and we’re licensed in all 50 states to keep you compliant nationwide.

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employee at architecture and engineering firms