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Apartment 4A
Background Information
Feature films
Short films
Television programs The Big Bang Theory
Video games
Park attractions
Designer
Inspiration
Other Information
Other names Nerdvana (referred by Howard Wolowitz)
Caption
Location The Apartment Building, 2311 North Los Robles Avenue, Pasadena, California.
Founder(s)
Ruler(s)
Owner(s) Sheldon Cooper (formerly), Leonard Hofstadter (currently),
Inhabitants Sheldon Cooper (formerly), Leonard Hofstadter, Rajesh Koothrappali (briefly in Season 4; then currently in Season 10), Sebastian (formerly), Penny Hofstadter (currently),
Visitors Howard Wolowitz, Rajesh Koothrappali, Howard Wolowitz, Rajesh Koothrappali, Penny Hofstadter, Amy Farrah Fowler, Bernadette Rostenkowski-Wolowitz, Stuart Bloom, Leslie Winkle, Wil Wheaton, Barry Kripke, Arthur Jefferies,
Students
Employees
Members
Final state Still standing

Apartment 4A is the primary permanent set for The Big Bang Theory, and is the apartment where Sheldon Cooper used to live. Leonard Hofstadter also lived in this apartment for 12 years with Sheldon until he moved in with his wife Penny. Raj later moved into the apartment, due to him cutting himself off from his family and has nowhere to live. It is situated in an apartment complex at 2311 North Los Robles Avenue. By season 8 after Penny and Leonard's engagement, she was seen living there most of the time though not officially moved in. When viewed from the satellite photographics in "The Countdown Reflection" episode, it appears to be located at 215 South Madison Avenue. Due to the primary characters in the series, albeit Penny, being of the "nerd" social classification, the apartment has been dubbed as "Nerdvana" by Howard in season 1 episode 14 "The Nerdvana Annihilation". Apartment 4A is located on the fourth floor of the building across the hall from Apartment 4B, where Penny lives and where Leonard lives now. Apartment 4A is known to be a corner apartment, being that it has windows facing outside on two sides. It may, in fact, be one of only two apartments on the floor, and may therefore have outside walls on all sides (other than the wall shared with the fourth floor hall and stairwell.

Apartment 4A is also a hidden easter egg (apt 4A = foray)- either a "great raid" or the voice of Rocky the Flying Squirrel, June Foray.

LayoutEdit

The apartment has one living room, one bathroom, and two bedrooms. A hallway links the living room to the bedrooms. The kitchen is part of the main living area. Immediately upon entering, the wall on the right houses Sheldon and Leonard's desks and the TV. The wall ends in the kitchen part. This wall is rarely visible, being the wall that is the view into the apartment from which the episodes are filmed, and has only been shown on two occasions (one is in "The Euclid Alternative", S2E5 and the other is "The Colonization Application", S8E17 ). The first was a view of the apartment from the hallway and the second had Leonard sitting at his desk during Sheldon's video.

The wall immediately to the left after entering the apartment has a long bookshelf that ends at a small closet, with the wall itself ending at a large window with a desk and telescope. These bookshelves, behind the couch, serve to hold the boy's vast collection of books, some software, as well as an ever changing selection of their various collectibles. Pasadena City Hall can be seen from the window at the alcove, which has been used on several occasions:

  • "The Tangerine Factor", Penny throws her ex-boyfriend Mike's iPod out of it
  • "The Panty Piñata Polarization", Sheldon shows Penny that he hung her clothes from a telephone pole outside
  • "The Einstein Approximation", Sheldon throws a whiteboard out the window, causing the sound of car tire screeching and car horns, implying that there is a fairly large road just down the window and that Sheldon just caused an accident.
  • "The Ornithophobia Diffusion", a blue jay lands on the window sill outside, which upsets Sheldon
  • "The Countdown Reflection", Howard and Bernadette are married on a rooftop ceremony which is photographed by satellite.

After the window, there is a corner and the hallway that leads to the bathroom, as well as Sheldon and Leonard's bedrooms. The kitchen area is a small area that has an island with rarely used barstools since they usually eat in the living room area. A window is located at the end of the visible wall of the kitchen area (which can be clearly seen in several kitchen area scenes, one typical instance is in "The Loobenfeld Decay" (S1E10), when Toby Loobenfeld talks with Sheldon in the kitchen area). Presumably, this window is one of the two windows (the other being the large window described above) that Sheldon has stated "creates a cross breeze" when he describes his Spot.

Sheldon, at one point in time, had painted luminous glow-in-the-dark arrows on the floor pointing to the various nearest emergency exits throughout the room. He shows them to Raj in "The Roommate Transmogrification" (S4E24), but gets rid of them before "The Friendship Contraction" (S5E15) when he explains that they were "wildly carcinogenic".

Production-wise, the bathroom interior, Sheldon's bedroom, Leonard's bedroom and the connecting hallway are actually filmed on a different set than the rest of the apartment. The actual apartment set ends at a corner in the hallway immediately after the bathroom door which is for easier filming access and better view of the actors for the studio audience.

HistoryEdit

In "The Staircase Implementation", the story of how Leonard and Sheldon meet is revealed. Sheldon places an ad for a roommate after his former roommate, Sebastian, is driven to the brink of madness from Sheldon's antics. Leonard encounters Sebastian on his way to the interview with Sheldon, and he tells Leonard to run far away. Leonard is accepted by Sheldon as his new roommate and inherits Sebastian's former room, only to discover that Sebastian wrote "DIE SHELDON DIE" in red paint (in style of a slasher film) on the wall.

At this time, the apartment also had significantly less furniture in the living room. Sheldon's only placement was two lawn chairs and cinder blocks as the TV stand. Even at this point in time, Sheldon's lawn chair was placed in the exact spot that he claims later on the couch. Their first major addition in furniture to the apartment was the leather couch, in which Leonard buys for $100 from tenants on the first floor who were moving out; which is a great deal, since a new retails for around $1,500. Careful watchers may recognize the style of sofa; while the boys utilize the full 3 cushion sofa, defective detective Adrian Monk from the series "Monk" sports the smaller, two cushion model, of the line.

In "The Bozeman Reaction", the apartment got burglarized. Some of Sheldon and Leonard's game systems and various games were stolen. The police were also called to the apartment in "The Zarnecki Incursion", when Sheldon's World of Warcraft account was hacked.

In "The Staircase Implementation", an "apartment flag" is mentioned as a small blue flag with a coat of arms on it of a gold lion rampant on a field of azure on it. Flipping it upside down signifies that the apartment is in distress. In "The Roommate Transmogrification", Raj was given a lapel pin version.

BathroomEdit

The bathroom is the first door down the hallway off the living room.

Sheldon's bedroomEdit

Sheldon's bedroom is located immediately after the bathroom. Sheldon usually keeps his bedroom locked, and supposedly rarely allows anyone inside, however, given the number of episodes where Leonard, Penny, his mother, Will Wheaton, Amy, and others have been there, this appears to be more wishful thinking on Sheldon's part than actual practice.

Leonard's bedroomEdit

Leonard's bedroom is the last room in the hallway. There is a ledge outside that runs by both bedroom windows. Sheldon uses this ledge during "The Bozeman Reaction" to access Leonard's room because he is too paranoid to go out of his bedroom because they were burglarized earlier in the episode.

KitchenEdit

The kitchen of the boys' apartment features an open floor plan that lets action flow easily between the living room and the kitchen space. The large butcher block type table provides a separate sitting area, allowing interactions in a setting more intimate than the clutter of the living room. The fridge and Sheldon's tea box provide "busy work" as the actors interact within the kitchen space, and it occasionally functions as an area allowing characters to briefly leave the room and re-enter quickly, allowing the characters remaining in the living room to talk or interact at their expense. For example the guys and Penny often laugh at Sheldon's quirks when he gets up to get a drink, and Penny famously touched Sheldon's food (taking and replacing an onion ring) when he left his spot on the couch for a brief beverage errand.

Living RoomEdit

The living room serves as the focal point for the majority of the "action" of the show. This is where everyone gathers, where gaming occurs, and where Leonard attempts to have intimate dinners with Leslie Winkle and Dr. Stephanie (constantly interrupted by Sheldon). The room serves not only to showcase Sheldon and Leonard's furnishings, collectibles, and artwork, but also serves as general storage space, given the number of partially assembled computer cases and other items around the area, including a vast collection of books.


v - e - d
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Characters
Main Characters

Leonard HofstadterSheldon CooperPenny HofstadterHoward WolowitzRajesh KoothrappaliAmy Farrah FowlerBernadette Rostenkowski-WolowitzStuart BloomEmily SweeneyLeslie Winkle

Recurring Characters

Barry KripkeWil WheatonAltheaKurtEric GablehauserMary CooperDebbie WolowitzV.M. KoothrappaliMrs. KoothrappaliMikeStephanie BarnettBeverley HofstadterPresident SiebertZack JohnsonPriya KoothrappaliWyattMike RostenkowskiMrs. RostenkowskiAlex JensenJanine DavisLucyProfessor ProtonDavid GibbsClaireStephen HawkingColonel Richard Williams

Minor Characters

ChristyLalita GuptaToby LoobenfeldDennis KimDimitriMissy CooperBlainTomOctaviaMariaLourdesRamona NowitzkiKathy O'BrianDavid UnderhillAliciaMikaylaCaptain SweatpantsLonely LarryDr. CrawleyBethanySarahSkeeterProfessor LaughlinAbbyMarthaOfficer HackettSandyGlenVenkatesh KoothrappaliSebastianLouie/LouiseJoyce KimMrs. GundersonJoyMrs. FowlerAngela PageProfessor GlennMrs. LathamTodd ZarneckiColonel Richard Williams

Episodes
Season 1

PilotThe Big Bran HypothesisThe Fuzzy Boots CorollaryThe Luminous Fish EffectThe Hamburger PostulateThe Middle-Earth ParadigmThe Dumpling ParadoxThe Grasshopper ExperimentThe Cooper-Hofstadter PolarizationThe Loobenfeld DecayThe Pancake Batter AnomalyThe Jerusalem DualityThe Bat Jar ConjectureThe Nerdvana AnnihilationThe Porkchop IndeterminacyThe Peanut ReactionThe Tangerine Factor

Season 2

The Bad Fish ParadigmThe Codpiece TopologyThe Barbarian SublimationThe Griffin EquivalencyThe Euclid AlternativeThe Cooper-Nowitzki TheoremThe Panty Piñata PolarizationThe Lizard-Spock ExpansionThe White Asparagus TriangulationThe Vartabedian ConundrumThe Bath Item Gift HypothesisThe Killer Robot InstabilityThe Friendship AlgorithmThe Financial PermeabilityThe Maternal CapacitanceThe Cushion SaturationThe Terminator DecouplingThe Work Song NanoclusterThe Dead Hooker JuxtapositionThe Hofstadter IsotopeThe Vegas RenormalizationThe Classified Materials TurbulenceThe Monopolar Expedition

Season 3

The Electric Can Opener FluctuationThe Jiminy ConjectureThe Gothowitz DeviationThe Pirate SolutionThe Creepy Candy Coating CorollaryThe Cornhusker VortexThe Guitarist AmplificationThe Adhesive Duck DeficiencyThe Vengeance FormulationThe Gorilla ExperimentThe Maternal CongruenceThe Psychic VortexThe Bozeman ReactionThe Einstein ApproximationThe Large Hadron CollisionThe Excelsior AcquisitionThe Precious FragmentationThe Pants AlternativeThe Wheaton RecurrenceThe Spaghetti CatalystThe Plimpton StimulationThe Staircase ImplementationThe Lunar Excitation

Season 4

The Robotic ManipulationThe Cruciferous Vegetable AmplificationThe Zazzy SubstitutionThe Hot Troll DeviationThe Desperation EmanationThe Irish Pub FormulationThe Apology InsufficiencyThe 21-Second ExcitationThe Boyfriend ComplexityThe Alien Parasite HypothesisThe Justice League RecombinationThe Bus Pants UtilizationThe Love Car DisplacementThe Thespian CatalystThe Benefactor FactorThe Cohabitation FormulationThe Toast DerivationThe Prestidigitation ApproximationThe Zarnecki IncursionThe Herb Garden GerminationThe Agreement DissectionThe Wildebeest ImplementationThe Engagement ReactionThe Roommate Transmogrification

Season 5
The Skank Reflex AnalysisThe Infestation HypothesisThe Pulled Groin ExtrapolationThe Wiggly Finger CatalystThe Russian Rocket ReactionThe Rhinitis RevelationThe Good Guy FluctuationThe Isolation PermutationThe Ornithophobia DiffusionThe Flaming Spittoon AcquisitionThe Speckerman RecurrenceThe Shiny Trinket ManeuverThe Recombination HypothesisThe Beta Test InitiationThe Friendship ContractionThe Vacation SolutionThe Rothman DisintegrationThe Werewolf TransformationThe Weekend VortexThe Transporter MalfunctionThe Hawking ExcitationThe Stag ConvergenceThe Launch AccelerationThe Countdown Reflection
Season 6

The Date Night VariableThe Decoupling FluctuationThe Higgs Boson ObservationThe Re-Entry MinimizationThe Holographic ExcitationThe Extract ObliterationThe Habitation ConfigurationThe 43 PeculiarityThe Parking Lot EscalationThe Fish Guts DisplacementThe Santa SimulationThe Egg Salad EquivalencyThe Bakersfield ExpeditionThe Cooper/Kripke InversionThe Spoiler Alert SegmentationThe Tangible Affection ProofThe Monster IsolationThe Contractual Obligation ImplementationThe Closet ReconfigurationThe Tenure TurbulenceThe Closure AlternativeThe Proton ResurgenceThe Love Spell PotentialThe Bon Voyage Reaction

Season 7

The Hofstadter InsufficiencyThe Deception VerificationThe Scavenger VortexThe Raiders MinimizationThe Workplace ProximityThe Romance ResonanceThe Proton DisplacementThe Itchy Brain SimulationThe Thanksgiving DecouplingThe Discovery DissipationThe Cooper ExtractionThe Hesitation RamificationThe Occupation RecalibrationThe Convention ConundrumThe Locomotive ManipulationThe Table PolarizationThe Friendship TurbulenceThe Mommy ObservationThe Indecision AmalgamationThe Relationship DiremptionThe Anything Can Happen Thursday RecurrenceThe Proton TransmogrificationThe Gorilla DissolutionThe Status Quo Combustion

Season 8

The Locomotion InterruptionThe Junior Professor SolutionThe First Pitch InsufficiencyThe Hook-up ReverberationThe Focus AttenuationThe Expedition ApproximationThe Misinterpretation AgitationThe Prom EquivalencyThe Septum DeviationThe Champagne ReflectionThe Clean Room InfiltrationThe Space Probe DisintegrationThe Anxiety OptimizationThe Troll ManifestationThe Comic Book Store RegenerationThe Intimacy AccelerationThe Colonization ApplicationThe Leftover ThermalizationThe Skywalker IncursionThe Fortification ImplementationThe Communication DeteriorationThe Graduation TransmissionThe Maternal CombustionThe Commitment Determination

Season 9

The Matrimony MomentumThe Separation OscillationThe Bachelor Party CorrosionThe 2003 ApproximationThe Perspiration ImplementationThe Helium InsufficiencyThe Spock ResonanceThe Mystery Date ObservationThe Platonic PermutationThe Earworm ReverberationThe Opening Night ExcitationThe Sales Call SublimationThe Empathy OptimizationThe Meemaw MaterializationThe Valentino SubmergenceThe Positive Negative ReactionThe Celebration ExperimentationThe Application DeteriorationThe Solder Excursion DiversionThe Big Bear PrecipitationThe Viewing Party CombustionThe Fermentation BifurcationThe Line Substitution SolutionThe Convergence-Convergence

Season 10

The Conjugal ConjectureThe Military MiniaturizationThe Dependence TranscendenceThe Cohabitation ExperimentationThe Hot Tub ContaminationThe Fetal Kick CatalystThe Veracity ElasticityThe Brain Bowl IncubationThe Geology ElevationThe Property Division CollisionThe Birthday SynchronicityThe Holiday SummationThe Romance RecalibrationThe Emotion Detection AutomationThe Locomotion Reverberation

Locations

The Apartment BuildingApartment 4AApartment 4BThe ElevatorCalifornia Institute of TechnologyWolowitz HouseThe Comic Center of PasadenaPasadenaThe Cheesecake FactoryRaj's ApartmentAmy's ApartmentHoward and Bernadette's ApartmentThe StairsSheldon's Old OfficeRaj's Old OfficeSheldon's New OfficeHoward's LabThe University CafeteriaKripke's Plasma LabInternational Space StationThe Kinetics Lab

See Also

Unaired Pilot

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