Blandings: Hollywood

Alamo Drive: In the hills, site of the Carmen Flores place in The Old Reliable. It overlooks the University of Southern California in Los Angeles. (Probably based on 1315 Angelo Drive, which was on a hill side and where Wodehouse lived in 1936-7.)
Benedict Canyon Drive: Featured in Gone Wrong, PG lived at number 1005 (a one-storey Spanish-style house with a swimming pool and tennis court) during late 1930 and up to mid-1931. Also mentioned as the home (probably) of Ivor Llewellyn in Pearls, Girls and Monty Bodkin.
Beverly Hills Hotel: Bill and Joe meet there in The Old Reliable. A real hotel that opened in 1912 at 9461 Sunset Boulevard and known locally as the 'Pink Palace'.
Beverley-Wilshire Hotel: Now the Regent Beverly Wilshire Hotel, built in 1928 at 9500 Wilshire Boulevard, Beverly Hills, Ca. Mentioned in Laughing Gas and The Old Reliable.
Bigger and Better: Film studio mentioned in Gone Wrong.
Bigger, Better and Brighter Motion Picture Company: Employing Isadore Zinzinheimer as its representative in London in Came the Dawn.
Brinkmeyer-Magnifico Motion Picture Corporation: Film company headed by Theodore Brinkmeyer and employing child star Joey Cooley, actress April June and others in Laughing Gas.
Brown Derby: A real restaurant visited by Ephraim Trout in Bachelors Anonymous and mentioned in The Luck of the Bodkins and others.
Cahuenga Boulevard: a real road in North Hollywood (about 5 miles north east of Angelo Drive). Mentioned in The Old Reliable.
Ciro's: A real restaurant on Sunset Boulevard. Mentioned in The Old Reliable.
Colossal-Exquisite: Now part of the Perfecto-Zizzbein company, it was headed by Jacob Schnellenhamer. (The Rise of Minna Nordstrom and mentioned in The Old Reliable)
Colossal-Superfine: Employed Lady Julia Ukridge for a while. (Ukridge and the Home from Home)
Finer and Better Motion Picture Company: Mentioned in The Small Bachelor.
Linden Drive: Strictly speaking in the neighbouring Beverly Hills, Linden Drive includes the home of actress April June in Laughing Gas. Wodehouse lived at number 724 for a while in 1930.
Medulla-Oblongata: A film company headed by Sigmund Glutz and mentioned in The Rise of Minna Nordstrom.
Medulla-Oblongata-Glutz: A film company mentioned in The Old Reliable and featuring Jacob Glutz. They signed on James Phipps (butler) and two policeman.
Mocambo: A real nightclub on Sunset Boulevard. Mentioned in The Old Reliable.
Perfecto-Fishbein: Now part of Perfecto-Zizzbein company, it was headed by Isadore Fishbein. (The Rise of Minna Nordstrom)
Perfecto-Wonderful: Film company headed by Sam Glutz in George and Alfred.
Perfecto-Zizzbaum Motion Picture Corporation: Founder and head, Mr Jacob Schnellenhamer. Formed from his own Colossal-Exquisite company and two others, the Perfecto-Fishbein and Zizzbaum-Celluloid. Other employees, excluding actors, include: Montrose Mulliner (assistant director); George Pybus (press dept); Wilmot Mulliner (Nodder); Mr Levitsky (co-executive); Mabel Potter (secretary); Mr Murgatroyd (director); Eustiss Vanderleigh (playwright); Bulstrode Mulliner and Genevieve Bootle (writers); and a gorilla. (Monkey Business, The Nodder, The Juice of an Orange, The Rise of Minna Nordstrom and The Castaways)
Romanoff's: A real restaurant on Rodeo Drive. Mentioned in The Old Reliable.
Superba-Llewellyn: Sited at Llewellyn City, it is headed by Ivor Llewellyn. It employs Lotus Blossom, Ambrose and Reggie Tennyson and others (in The Luck of the Bodkins), Monty Bodkin and Sandy Miller (in Pearls, Girls and Monty Bodkin) and used to employ Wilhelmina Shannon and Joe Davenport (in The Old Reliable).
Trocadero Ballroom: Famous in the 1930s as centre of jitterbug dancing and later frequented by Hollywood stars, it no longer exists. (Spring Fever)
Zizzbaum-Celluloid: Now part of Perfecto-Zizzbein company, it was headed by Ben Zizzbaum. (The Rise of Minna Nordstrom)