Narrow Walk-Up

Narrow infill walk-up tenement, footprint exactly 4x8m, 4 floors at exactly 3m each (roof line at 12m) plus a low parapet, 13m total; one window per floor over a small ground floor storefront with a sign band, flat facade relief only.

风格：low-poly, flat-shaded vertex colors, no textures, single shared material, so any set of these merges to one draw call; shares palette and scale with its kit