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Chapter Il- Development Standards & Urban Design Guidelines base height and four for towers. Using the same or similar for towers, subject to City review. Reflective glazing wall materials as adjacent or nearby buildings helps should not be used. If tinted glazing is used, the tint strengthen community character. should be kept as light as possible; green, grey, and blue are recommended. a. Wood Shingles, Clapboard, and Batten Board - All wood wall and trim surfaces should be painted, in keeping with g. Not Appropriate: the level of finish and quality desired for the Precise Plan Area. Natural and/or stained wood surfaces are ap- i. Plywood panel siding (e.g., T-l11) propriate for less developed, more rural areas. ii. Concrete block - decorative split face block may be b. Stone and Stone Veneers - are appropriate as a basic used for side or rear elevations not visible from ad- building material or as a special material for walls, col- jacent buildings, streets, ways, subject to city review. umns, sills, or base. Stone veneers should be formed and/ or detailed to reflect traditional stone-setting techniques; 10. Windows - are an important element of building composi- e.g., "stones" or "blocks" should appear structural and tion and an indicator of building quality. load-bearing. a. Composition - All windows within a building, large or c. Stucco - and/or painted stucco may be used in order to small, should be related in operating type, proportions, reduce maintenance; protective coatings should be used and/or trim. Unifying architectural elements such as com- for painted surfaces. Highly textured stucco should not mon sill or header lines should be employed. be used. Stucco surfaces should be smooth to prevent the collection of dirt and surface pollutants and deterio- b. Window-to-Wall Proportion - In general, upper stories ration of surfaces. should have a window-to-wall area proportion that is smaller than that of ground-floor spaces and/or store- d. Precast Concrete - options in terms of form work, pig- fronts. ments, and aggregates should be explored to create rich surfaces. c. Window Openings - should generally be vertical (i.e., higher than wide) in orientation, or square; if square, e. Ceramic Tile - is recommended as an accent for stucco window panes should be square or vertical in shape. and concrete. Strongly horizontal "ribbon windows" are not consis- tent with the urban village character desired for the Pre- f. Glass Walls - Extensive glass wall areas are not recom- cise Plan Area. mended below 50'. Limited expanses of glass may be appropriate for solar access at special public areas, such d. Framing and Window Inset - Built-up sills and trim as lobbies, atria, and/or indoor gardens. Extensive glass should be used to frame openings. Glass should be inset wall areas may be appropriate for areas above 50' and a minimum of 3" from exterior wall and/or frame surface to add relief. Final Plan - June 2004 - 52 -