Lanai and porch conversions

Lanai to Conditioned
Space Conversion

Turning a lanai or screened porch into living space changes the structure: new walls, window and door openings, a floor that may need to be raised, and a roof that now has to be treated like part of the house. Eiffel Todary, P.E. (FL PE #102925) designs the structural changes and seals the plans.

Licensed Professional Engineer: Florida PE #102925 | New York PE #101448

Fixed price

From $1,900

See all pricing
Converted lanai living room with large windows and sliding doors
Illustrative image

What the structural design covers

  • New walls and the load path to the foundation
  • Header and opening design for new windows and doors
  • Slab and floor changes, including raised floors
  • Roof framing check and wind connections
  • Attachment to the existing house

What other trades provide

A conversion also involves energy compliance, mechanical, electrical and sometimes flood-zone requirements. Those are not part of our structural plans. We tell you early what the county will also ask for so nothing surprises you.

How it works

Step 1: Send the address, a sketch or photos, and any plans or survey you have, or call us. Step 2: We confirm what the county needs and send a fixed written price. Step 3: Approve the quote and send the survey if one is required. Step 4: We prepare the calculations and drawings, review them and seal them. Step 5: You or your contractor submit the permit, and we answer the county's comments on our plans.

Frequently Asked Questions

Can any lanai be converted?

Often, but it depends on the existing slab, roof and foundation. We check what is there before committing to a design.

Is the lanai in a flood zone?

That changes requirements. Tell us the address and we check what applies.

Is the price fixed?

Yes. From $1,900, with a fixed written price once we know the scope.

How much does lanai to conditioned space conversion cost in Tampa Bay?

Our fixed price starts at $1,900. Your exact price depends on the size and complexity of the project and what your county requires, and you get it in writing before you pay. There is no hourly billing. Typical turnaround is 5–7 business days.

Areas we serve most

Based in New Port Richey, we work across Pasco, Pinellas, Hernando and Hillsborough counties, including New Port Richey, Holiday, Port Richey, Trinity, Hudson, Odessa, Land O' Lakes, Wesley Chapel, Tarpon Springs, Palm Harbor, Clearwater, Spring Hill, Brooksville, Tampa, and projects throughout Florida.

Related services

Send us your photos and questions

Call (813) 683-7888 or email info@corestructureeng.com. Most residential letters and reports are delivered in 3 to 5 business days.