Sales offices for condominium developments are usually nondescript, temporary structures. But in the artsy West Queen West neighborhood of Toronto, the London-based architect Will Alsop has created an Urbancorp/Landmark showroom that looks like a speckled red box. Made of marine plywood, it has amoeba-shape windows and an egg-shape conference room. The office will be used to sell apartments in two buildings designed by Baird Sampson Neuert Architects and a tower by Mr. Alsop. Once the apartments are sold, the 3,000-square-foot office will have a second life as an art gallery run by Ben Woolfitt, an artist and art-supply store owner. Mr. Woolfitt lent the project's developer, Alan Saskin, the land for the sales office; in exchange, he gets to keep the building.