To be filed under Best Design Idea we've seen in a while: San Francisco architect and AIA award-winner Nick Noyes' Flexahouse for Houseplans.com. Inspired by the works of California greats Joseph Esherick and Clifford May, who applied the principles of modernism to modest family dwellings, Noyes has devised a "flexible house plan based on key design elements." A spacious central living area—integrating kitchen and living/dining rooms—anchors three variations on the theme, which can be tailored to different needs. By adding more bedrooms, changing the orientation of the garage, or choosing siding (shingle, board-and-batten, stucco) and roofing options (standing seam metal or composition shingle), you can create still more variations. Houseplans.com's staff architects and engineers work with clients to tailor the Flexahouse plans to specific sites; go to Houseplans.com for more information, and read former Sunset editor Dan Gregory's piece about the Flexahouse at Houseplans Editor's Blog.