RIP: Simlogical closed its doors on April 6, 2006. 

Get the apartment controller and token required for apartments to function at: 
SimLogical Sims1 Apt Archive Yahoo  Group

Simlogical

Home of the original apartment system for Sims1, needed to run all apartment objects for download here and at other websites. Also has prototype objects for Sims2 apartments.

SimApartments Yahoo Group
Resource & discussion group for players of The Sims who like to build & have their Sims live in apartment buildings, duplexes, condos or other multi-family dwellings. Come here to share tips & ideas or ask questions & share problems, and post photos of your Sim Apartment buildings. There are special hacked objects in the Files section, hacked to work with the Sim Logical Apartment Control system for Sims1. Apartment lots with instructions and shopping lists for special hacked apartment living objects available in Files section.

Madoria's World
Great sets for Sim Logical Apartment system here! Look under 'Specials' for Apt hacked sets.

Shiny Sims Apartments Yahoo Group
Mhari's group dedicated to Apt hacked objects. Clonable apt objects also available here.

Alex Pilgrim Homes Yahoo Group
Homes and Apartments for The Sims 1, objects for apartments to use with Inge's (Simlogical) apartment control system, ideas for "community" play on your apartment lots.

Oceanview's Unique Sims Homes Yahoo Group
Yahoo group for unique Sim lots like Apartments, Schools, Prisons, Airports & more.

Simpatience!

Website for Sim apartments & stuff

Apartment Name Generator
Randomly generates names for apartment buildings.

Sim Witch

Sim Witch has Apt. lobby 'mailboxes' cloned from bookcases. Amongst other things Sim.

Topaz's Sim Stop Yahoo Group
Download Topaz's recolors of Sim Logical Apt objects here.

Do you have, or have you seen an apartment-related website or e-group not on this list? Let us know!