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Penny's Apartment

Penny's apartment

Apartment 4B is the secondary setting of The Big Bang Theory. It formerly belonged to Louie/Louise, then Penny, and then Sheldon and Amy for the last three seasons of the series.

Penny was mostly living alone in the apartment prior to her eventual husband Leonard moving in, but they still spend most of their nights in Apartment 4A due to Sheldon having had a hard time with Leonard moving out. It is located on the fourth floor of the Building at 2311 North Los Robles Avenue, Pasadena, California. When viewed from the satellite photographs in "The Countdown Reflection" episode it appears to be located at 215 South Madison Avenue. It is most well known as being located directly across the hallway from Apartment 4A, which is the apartment that Sheldon lives in and in which Leonard also used to live in with Sheldon as roommates though the married couple spent many nights there. Sheldon and Amy used it for a five-week experiment in living together and then formally moved in together. It is known that they spent their first year as a married couple here, but they eventually moved into their own house as seen in the "Young Sheldon" series finale "Memoir", being a well-deserved upgrade after winning a Nobel Prize.


Sheldon leonard and penny apartment from tbbt

Apartments 4A and 4B

4B is a smaller apartment than its counterpart across the hall, having only a single bedroom instead of two; however, like its counterpart across the hall, it has an open floor plan where the living room and the kitchen are part of the same room. Also like 4A, the apartment is entered into the living room through the hallway. The right wall has a single door that leads into Penny's bedroom. Continuing along the wall is a large window with her kitchen table by it. The bathroom in the apartment is an ensuite located through her bedroom, and is the only way to access the bathroom.

The wall on the left immediately after you enter the apartment is not visible, as it is the view into the apartment when episodes are being filmed. The wall houses Penny's TV and entertainment center and her portrait of her and Amy Farrah Fowler, and ends at the kitchen area.

In Penny's kitchen, there is an island with chairs as well as a small window over the sink.




Apartment 4B is first seen in the pilot, upon meeting Penny, who is the newest tenant in the building. We also find out that the former occupant of 4B was "a 200 pound transvestite with a skin condition". This former occupant's name was revealed as Louie/Louise in the following episode called The Big Bran Hypothesis. The Big Bran Hypothesis also gives us the first view inside the apartment, in which Sheldon and Leonard help move in a media set while Penny is at work. Sheldon describes Louie/Louise as being cleaner than Penny, having helped him run cable for a web-cam while he lived there.

Sheldon and Amy move in the apartment in The Cohabitation Experimentation.

Note: When Leonard first sees Penny through the doorway in the Pilot, the kitchen should be visible, but is not. Only the coffee table that is still in front of her couch can be seen in her full apartment set.


Penny's unit is featured in:

Items Found in the Apartment[]

Penny's Frig Pix May 2014
Penny's apartment has been described as an explosion of an IKEA catalog. Many of the items found in her apartment are from IKEA; however, most of them have been altered with new upholstery, paint, coverings, etc.

Penny's Living Room:

Purple Frame
Orange director's chair Purple picture frames Wisdom of the Birds painting by artist Dan Gottsegen

Skruvsta Chair
Klippan Sofa
Skruvsta swivel chair
recovered in green and white

Klippan Loveseat

recovered in teal fabric

"The Victorian Bird" by Papaya Art
Watering Can
Coffee Table
Lunta Lamp
Ikea watering can Birch Lack Coffee Table by Ikea Lunta lamp from Ikea

(painted orange)

Bjursta Table
Nordmyra Chair
Painters Palette
Bjursta extendable table Nordmyra chair at the desk

(painted purple)

"Painter's Palette" multi-colored Soren chair from Anthroplogie (discontinued)
Purple Bijoux lamp
Purple Bijoux lamp

with plain lamp shade

the green couch cushions are called Hanna Slinga, from Ikea (discontinued)

Known rooms:

  • Amy and Sheldon's room (formerly Penny's room)
  • the living room
  • the kitchen
  • the bathroom

Penny's Kitchen:

  • light blue tea pot [S01E02]
  • yellow and blue bowls
  • yellow coffee maker
  • wood and steel paper towel holder
  • salad plates on the wall are from Anthropologie's "Verdant Acres" collection (discontinued - check eBay)
  • lime green plastic PackerWare tumblers, seen in the episode "The Grasshopper Experiment". They appear to be discontinued.

Penny's bedroom:

  • Bed linen set: Kumala Rose from Anthropologie (appears discontinued)
  • Sheets, solid light blue, among others: from Bed, Bath & Beyond
  • Bed: custom design by Shea
  • Rugs: Urban Outfitters
  • Curtains: Pier One
  • Bed table: IKEA
  • Lamps: Lamps Plus
    • the one on the nightstand is called "Purple Bijoux" table lamp
    • Penny has added a lighter colored lamp shade
  • Multi-Colored paper lanterns: Creative Converting
  • Sconces: Brown & Gold Lighting
  • Artwork: Katie Hinton print
  • Sterilite Ultra Rectangle Laundry Basket, white


Fall of 2016 marked Sheldon and Amy's five week experiment followed by them officially moving in together. Later they started redecorating, but the furniture setup remains the same.


Shamy's redecorated bedroom.