A modular bicycle storage system designed primarily for use in urban environments includes a plurality of enclosures formed from a weatherproof fiberglass or plastic sheeting. The enclosure is accessed by a door that can be secured with a lock further includes lighting for nighttime use. A plurality of enclosures can be fastened and arranged in a modular fashion, both vertically and horizontally. The arrangement forms a pattern which is both space efficient and aesthetically pleasing. The enclosures also provide features which enable tethering to a ground surface if desired.