Jefferson Parish is home to many condo associations and town home developements that were built to be condos. The condo associations are generally larger as there are fewer conversions. When conversions did take place it was to convert a large apartment complex into condos. The prices really drop in Jefferson as you move from Orleans. The areas in this area are within 5-8 miles of downtown New Orleans and make for an easy commute or a second home at half the cost of those in New Orleans.
The Condos and town homes in Old Metairie are going to be closest to New Orleans. Most of the developments are off of Metaire Road and town homes where they are zoned. Its a great neighborhood feel with everything close by.
The Jefferson Highway area is going to be close to Uptown and Audubon Park and offer an easy commute and a great location of being close to the airport, I-10, and all points in New Orleans. Its all about 20 minutes away. You get a lot more for your money in this area. Its like getting things for 50% off for being 3-5 miles from town.
Metairie is going to have most of the condos off of Veterans Blvd. They are all going to be close to shopping, playgrounds, easy access to Causeway, Airport, I-10 and most parts of New Orleans. The complexes are going to be larger with no parking issues. You can walk to the grocery in most cases. Its about 15 minutes to the French Quarter via I-610.