Mixed leisure, entertainment and retail extension to the existing Liffey Valley Centre organised around a large public plaza and pedestrian friendly east-west street with parapet levels varying between c.15m and c.18m above street level; the scheme provides for: (a) a two storey commercial extension (c.46,783sq.m gross) with plant areas at roof level to the existing Centre providing for mixed leisure and entertainment units (c. 9,247sq.m gross), food/beverage units (c.4,052sq.m gross), retail units (c. 21,051sq.m gross) and all ancillary space and circulation areas (c.12,433sq.m gross); the main retail area will be anchored by two stores (comprising a total of c.10,090sq.m gross) located on either side of the public plaza; (b) a central public plaza fronting onto the east-west street covered with a large glass canopy in the form of a curved gridshell structure, this structure will be the tallest part of the proposal at a height of c. 20m above street level, the food/beverage units are located around the plaza at both ground and first floor levels; (c) car parking over two levels (c.900 spaces including 45 universal access spaces and c.200 long stay cycle spaces with an area of c.27,917sq.m gross) located north-east of the extension area c. 290 short stay cycle spaces, 27 short stay car parking spaces and car/taxi set down areas on the east-west street; c.100 long stay cycles spaces provided within the existing car park to the adjacent to the Westend development (Vue Cinema and restaurants); approximately 2,085sq.m of existing gross floor space is to be removed/demolished over ground and first floor to facilitate the extension; the proposal includes all associated service yards, plant and equipment, photovoltaic panels, electricity substations, all utility connections and works, street lighting, signage, landscaping and boundary treatments; the proposal includes the construction of new toucan crossing points for cyclists on Ascail an Life (Ring Road around the Centre) at the western end of the east-west street to provide safe connection to the existing cycle network. An Environmental Impact Assessment Report (EIAR) is submitted.