The architect’s atlas · 1867–1959

Frank Lloyd Wright’s works atlas

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Built work

Edgar J. Kaufmann Sr. House (Fallingwater)

Architect
Frank Lloyd Wright
Place
Bear Run, Pennsylvania, United States
Construction
1936–38
Design / archive date
1935
Catalogue reference
FLWFA 3602 / S.230

Architecture & history

Fallingwater is a house museum in Stewart Township in the Laurel Highlands of southwestern Pennsylvania, United States. Designed by the architect Frank Lloyd Wright, it is built partly over a waterfall on the Bear Run stream. The three-story residence was developed as a weekend retreat for Edgar J. Kaufmann Sr., the owner of Kaufmann's Department Store in Pittsburgh, and his wife Liliane. The Western Pennsylvania Conservancy (WPC), which has operated Fallingwater as a tourist attraction since 1963, maintains 5,000 acres (2,000 ha) surrounding the house.

Edgar Kaufmann Sr. had established a summer retreat at Bear Run for his employees by 1916. When employees stopped using the retreat, the Kaufmanns bought the site in July 1933 and hired Wright to design the house in 1934. Several structural issues arose during the house's construction, including cracked concrete and sagging terraces. The Kaufmanns began using the house in 1937 and hired Wright to design a guest wing, which was finished in 1939. Edgar Kaufmann Jr., the Kaufmanns' son, continued to use the house after his parents' deaths. After the WPC took over, it began hosting tours of the house in July 1964 and built a visitor center in 1979. The house was renovated in the late 1990s and early 2000s to remedy severe structural defects, including sagging terraces and poor drainage.

The house includes multiple outdoor terraces, which are cantilevered, extending outward from a chimney without support at the opposite end. Fallingwater is made of locally–quarried stone, reinforced concrete, steel, and plate glass. The interior spans 5,330 square feet (495 m2), with the main entrance, the living room, two outdoor terraces, and the kitchen on the first story. There are four bedrooms (including a study) and additional terraces on the upper stories. Wright designed most of the house's built-in furniture. Many pieces of art are placed throughout the house, in addition to objects including textiles and Tiffany glass. Above the main house is a guest wing with a carport and servants' quarters.

Fallingwater has received extensive architectural commentary over the years and it was one of the world's most discussed modern–style structures by the 1960s. The house has been the subject of books, magazine articles, films, and other media works over the years. Fallingwater is designated as a National Historic Landmark, and it is one of eight buildings in "The 20th-Century Architecture of Frank Lloyd Wright", a World Heritage Site.

Reference overview adapted from Wikipedia contributors under CC BY-SA 4.0. Formatting adapted for Arch Moods.

Research notes

Fallingwater’s material history continues after construction: preserving an architectural effect can require later replacement materials.

The Western Pennsylvania Conservancy describes walnut-veneered plywood furniture and the difficulty of protecting it from moisture. That evidence concerns an assembly and its conservation, rather than proving that every visible coating remains original.

Vitro documents Starphire Ultra-Clear glass with a SentryGlas interlayer during 2019 window and door work. These are replacement products. Comparing the historic woodwork with later glazing makes the difference between original fabric, maintenance and replacement explicit.

What the sources do not establish
  • Do not treat the 1937 paint specification as the current repainting system.
  • Not every furnishing or pane is claimed to retain original material.

Sources & evidence

Research checked 2026-11-02 · Editorial policy & corrections

Browse all Wright records · Documented material specifications

Documented materials

Verified project and conservation specifications. This is a partial record; original and later conservation phases are distinguished.

North Carolina black walnut veneer

Used for
Wright-designed woodwork and furnishings
Species
Black walnut from North Carolina
Assembly
Walnut veneer over marine-grade plywood
Finish
Shellac — documented in the 2011 conservation account
Phase
Original veneered woodwork; later finish conservation

The Conservancy identifies the plywood-and-veneer assembly and discusses repair of deteriorated shellac. These records do not establish shellac as the original finish on every furnishing or show that current coatings are unchanged.

Specification evidence

Checked 2026-11-02

Starphire Ultra-Clear glass

Used for
Replacement window and door glazing
Product
Starphire Ultra-Clear
Manufacturer
Vitro Architectural Glass
Assembly
Laminated by Dlubak Specialty Glass Corporation
Phase
Window and door restoration (2019)

Restoration glass; not a claim that all original panes were replaced. No installed thickness is inferred from product performance examples.

Specification evidence

Checked 2026-10-30

Catalogue & archival references

A world of Wright.

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Filled markers use published building coordinates; outlined markers are approximate city locations. Historical markers may identify a former site. Many buildings are private homes. Map & catalogue sources

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Entries include buildings, alterations, project variants and unbuilt designs—not a count of surviving buildings. Design dates and construction dates are shown separately.

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Complete works directory

A catalogue with its sources open.

This atlas combines the Avery architectural drawing inventory with a published building index. Individual profiles link to their references. An archive record does not, on its own, establish that a building was constructed. Unknown construction dates and missing photographs are marked explicitly; unbuilt schemes are never presented as completed buildings.

Longer reference overviews and building-index material are adapted from Wikipedia contributors under CC BY-SA 4.0. Each photograph has its own creator, source and reuse licence. Restricted architectural drawings are linked to their archive rather than reproduced.

Research edition: 30 October 2026. Building access and visiting arrangements can change; consult the relevant site before planning a visit.

Project photograph