Some Bel Air listings try to sell a fantasy. This one sells something even rarer: longevity. A timeless gated estate designed by acclaimed architect Gerard Colcord has just hit the market at $7.495 million, offering the kind of old-school Bel Air appeal that still makes people move like it’s 1998 and the zip code is a personality trait. The property at 253 Ashdale Place is listed with Juliette...