Bailey House (Case Study House #21) is a Mid-Century Modern house in Los Angeles, California. Built in 1959, it was designed by Pierre Koenig, and is listed on the U.S. National Register of Historic Places.
Location: Hollywood Hills, Los Angeles, California, United States
Verified facts
- Located in Hollywood Hills, Los Angeles
confidence 80/100 · 5 independent sources · SRC-1743, SRC-1744, SRC-6334, SRC-6335, SRC-8915 - Designed by Pierre Koenig
confidence 70/100 · 3 independent sources · SRC-1744, SRC-1745, SRC-1746 - Built in 1959
confidence 80/100 · 6 independent sources · SRC-1744, SRC-1743, SRC-1746, SRC-6334, SRC-6336, SRC-8916 - Architectural style: Mid-Century Modern
confidence 80/100 · 6 independent sources · SRC-1744, SRC-1745, SRC-1743, SRC-6337, SRC-6338, SRC-8917 - Historic designation: National Register of Historic Places; Los Angeles Historic-Cultural Monument
confidence 90/100 · 4 independent sources · SRC-1743, SRC-1745, SRC-1744, SRC-6339 - Designed by None
confidence 95/100 · 5 independent sources · SRC-1743, SRC-1744, SRC-6334, SRC-1746, SRC-8915
Evidence & sources
- SRC-1743 — Wikipedia — Bailey House (Los Angeles) (Tier 3, encyclopedia; retrieved June 2026)
- SRC-1744 — Los Angeles Conservancy — Bailey House (Case Study House #21) (Tier 2, institutional; retrieved June 2026)
- SRC-1745 — Docomomo US — Case Study House No. 21 (Tier 2, institutional; retrieved June 2026)
- SRC-1746 — ArchDaily — A Virtual Look Into Pierre Koenig's Case Study House #21, The Bailey House (Tier 2, journalism; retrieved June 2026)
- SRC-6334 — Architecture Lab — Case Study House #21 (Bailey House) / Pierre Koenig (Tier 3, architecture reference; retrieved June 2026)
- SRC-6335 — Etan Does LA — #52: Case Study House No. 21 (Bailey House – Hollywood Hills) (Tier 3, local landmarks blog; retrieved June 2026)
- SRC-6336 — Architectuul — Bailey House (Tier 3, architecture database; retrieved June 2026)
- SRC-6337 — Beverly Bar — Case Study House #21 (Bailey House): A Mid-Century Architectural Masterpiece (Tier 3, architecture feature; retrieved June 2026)
- SRC-6338 — Mid-Century Gems — The Case Study House Program: Bailey House (Case Study #21) (Tier 3, architecture magazine; retrieved June 2026)
- SRC-6339 — National Park Service – NPGallery, Case Study House No. 21 (National Register record) (Tier 1, government heritage register; retrieved June 2026)
- SRC-8915 — National Register of Historic Places — Registration Form, Case Study House #21 (Bailey House), NRHP ref. 13000518 (U.S. National Park Service / NPGallery) (Tier 1, official_archive; retrieved June 2026)
- SRC-8916 — Digs.net — "Pierre Koenig Case Study House No. 21 Asks $3.6M" (Digs, Los Angeles luxury real-estate journalism) (Tier 2, journalism; retrieved June 2026)
- SRC-8917 — The Spaces — "Pierre Koenig's Case Study House 21 lists for $3.6m" by Emma Tucker (architecture & design journalism) (Tier 2, journalism; retrieved June 2026)
How we verify
Every fact above is independently corroborated by at least two reputable sources and
confidence-scored before publication. Claims that cannot clear that bar are withheld. We show the
street address only for non-residential public landmarks (museums, commercial and civic buildings,
publicly documented filming-location sites); the exact addresses of private residences and any
personal information are structurally barred from publication. Last reviewed June 2026.
Frequently asked questions
Who designed Bailey House (Case Study House #21)?
Bailey House (Case Study House #21) was designed by Pierre Koenig.
Where is Bailey House (Case Study House #21) located?
Bailey House (Case Study House #21) is located in Los Angeles, California.