CIVIC + RECREATIONAL

Site Development + Drainage + Traffic

Lynn Wyatt Square for the Performing Arts

HOUSTON, TEXAS

A 1.5-acre civic plaza – built over an active garage – designed to keep movement live day + night

THE SITE

Lynn Wyatt Square sits in the middle of Downtown Houston’s Theater District — a dense, active corridor where traffic, pedestrians, and venue access stay constant. The plaza spans 1.5 acres across a full city block — built over an operational parking structure.

Grade + ADA Continuity

The plaza drops nearly 12 feet from end to end. Grading had to do more than shape the space — it had to keep sidewalks continuous, accessible, and ADA-compliant across the perimeter.

Drainage That Respects What’s Underneath

Stormwater design couldn’t treat this like a typical site. Detention was engineered to perform on top of a garage roof — supported by lightweight soils that drain quickly without adding load.

Traffic + Construction Choreography

The city could not shut down for the project. Traffic flow stayed live on all four sides through design, permitting, and construction — and the underground garage remained open the entire time.

Traffic + Construction Choreography

The city could not shut down for the project. Traffic flow stayed live on all four sides through design, permitting, and construction — and the underground garage remained open the entire time.

Traffic + Construction Choreography

The city could not shut down for the project. Traffic flow stayed live on all four sides through design, permitting, and construction — and the underground garage remained open the entire time.

SITE UNSEEN

DAY ONE
What the site demanded —

  • A full downtown city block in Houston’s Theater
    District
  • Built directly over a working underground
    parking garage
  • Nearly 12 feet of fall across the plaza footprint
  • Traffic + pedestrian access had to stay open on
    all four sides

UNDER THE SURFACE
What we engineered —

  • Detention engineered for a garage roof —
    storage without structural load
  • Lightweight specialty soils — fast drainage
    without added dead weight
  • Permeable water barrier installed between the
    garage + new hardscape
  • Encroachment + ROW coordination to keep the
    city moving through construction

SNAPSHOT

Client

The City of Houston

Architect

(add)

Location

Downtown Houston Theater District

Key Constraint

Active garage + 12 feet of fall across the block