The buildings of the Lafayette Library and Learning Center embrace the sloped topography of the site, defining a pedestrian street which extends the full length of the site and features a landscaped amphitheater, intimate reading areas and outdoor cafe seating. The Community Building anchors the busy corner intersection and includes a large meeting area, platform and art gallery.

The Main Library spaces are supported by wood paralam columns and trusses, defining a modern interpretation of the distinctive Bay Area architectural style. High clerestory glazing infuses the interior with natural light, and deep overhangs and sun shades provide protection from heat gain and glare. The Children's LIbrary features a large shaded patio, reading nooks, a stepped storytelling corner, fanciful round windows in the shape of the Big Dipper and a multi-colored carpet tile floor pattern.

The buildings' exterior is clad with amber gold granite, reclaimed teak siding and warm-toned metal panels. Photovoltaic panels above the surface parking lot will generate approximately 8% of the building's electrical needs.