River Rock, the last residential design of Frank Lloyd Wright, seen from the lawn

Residential · Frank Lloyd Wright

River Rock. Wright’s last house, built as he drew it.

River Rock was the last residential design of Frank Lloyd Wright. It was built on the site it was drawn for, from his original drawings, and Quadriga Studio was chosen to help bring it to life.

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River RockPenfield Township, Ohio

Frank Lloyd WrightHis last residential design
Original drawingsBuilt on the site it was drawn for
AIA Merit AwardRecognized in 2025
On HBO MaxFour-part documentary “The Last Wright”

A design waiting decades. A team trusted to get it right.

Quadriga’s Joe Myers and Rob Shearer were the team chosen to bring this important building to life. Our work ran from municipal approvals and code research to supporting the mother-and-daughter team who served as their own general contractor, all the way through construction.

Throughout, our role was to make sure the details and construction stayed as close as possible to Frank Lloyd Wright’s original design intent, while meeting the codes a new house has to meet today.

Municipal approvals
Code research
Construction support
Detailing
Energy-code compliance
Historic design intent

River Rock, a long, low house under a copper-green roof, set into the woods

Low to the ground, long to the eye

The project

Stone, wood and a roof that reaches out.

River Rock stretches low along its wooded site under deep, cantilevered eaves. Stacked stone walls anchor the house to the ground, and a sharp roof point, the expressive tip of the building, pushes out toward the trees.

Tall wood-framed glass opens the living room to the landscape, in the way Wright intended: the room and the garden read as one space.

Design: Frank Lloyd Wright
Location: Penfield Township, Ohio
Quadriga team: Joe Myers · Rob Shearer
Builder: Owner-builders, mother and daughter

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The expressive roof point of River Rock against the sky — The expressive tip of the building.

Roof and chimney detail at River Rock — Roof detail

Carport with stone pier and cantilevered roof — Carport

Glass meeting stone and ceiling at the living room corner — Glass detail

Living room façade with tall wood-framed windows — Living room façade

Detail · The windows

Wright’s windows, rebuilt for today’s energy code.

One of the greatest challenges was keeping the look of Wright’s windows while meeting modern energy codes. His single-pane glass became insulated double-pane units, so the frames had to be routed deeper to hide the spacer between the panes, while keeping the ⅜″ exterior glazing stop that protrudes slightly and gives his windows their shadow line.

The detail where the glass meets the ceiling was reworked as well, to keep the continuity between inside and outside that defines Wright’s rooms.