It's hard to think of a more popular piece of pop culture real estate than Wayne Manor, especially with its extra square footage in a structurally sound cave below. When it comes to the digs of Batman, it's hard to combine it's impressive monetary value and cultural importance in one spot of land.
For most of its history, Wayne Manor has been left undefined in its actual architectural design, leaving fans to fill out the blanks rather than have them defined. One notable exception is in 1986, when DC Comics licensed out Batman to Mayfair Games as part of the DC Heroes Role Playing Game. Mayfair released the Batman Sourcebook, which included blueprints and floorplans of both Wayne Manor and the Wayne Foundation Building, which included his penthouse apartment. Each had its own private underground Batcave lair. To check out these blueprints over the web:
The dimensions are pretty impressive: 125 X 225 feet, for a square footage of 28,125. It's also a three story home, with a nice basement (and an even nicer basement beneath it.)
For those who want to read the entire Batman Sourcebook, which is chock full of interesting information on Bruce Wayne and the entire cast of Batman characters:
Meanwhile, to check out a non-authorized version of Wayne Manor, look at the blueprints made by Mark Bennett for his book TV Sets: Fantasy Blueprints of Classic TV Homes.
And here's some places to check out to see real life addresses for Wayne Manor:
Batman TV series
380 South San Rafael Avenue
In the series, the Batcave entrance is found at the Bronson Cave in L.A.'s Griffith Park:
Tim Burton's Batman
Exterior: Knebworth House
Interior: Hatfield House
Joel Schumacher's Batman
Glen Cove, New York
The Dark Knight Rises (2012)
Credit must go to Wikipedia.org and Scott Rose of ScottWorld.com for research help on this...