| No. 1 Gunwharf Quays | |
| Alternate Names: | East Side Plaza Tower The Lipstick Gunwharf Tower Building |
| Status: | Complete |
| Image Alt: | No. 1 Gunwharf Quays, Portsmouth, UK, colloquially known as The Lipstick, East Side Plaza Tower, or Gunwharf Tower Building seen from Haslar |
| Map Type: | Hampshire |
| Building Type: | Residential |
| Architectural Style: | Postmodern |
| Cost: | £50m |
| Address: | 1 Gunwharf Quays, Portsmouth, Hampshire, United Kingdom |
| Coordinates: | 50.7954°N -1.1034°W |
| Start Date: | 2005 |
| Completion Date: | 2008 |
| Height: | 95m (312feet) |
| Floor Count: | 29[1] |
| Seating Type: | Residential |
| Main Contractor: | Byrne Brothers |
| Architect: | Broadway Malyan |
| Structural Engineer: | Gifford Ltd |
| References: | [2] [3] |
1 Gunwharf Quays, also known as East Side Plaza Tower or the Gunwharf Tower Building, is a 101m (331feet) tall residential building with 29 floors, located at the Gunwharf Quays shopping complex, Portsmouth, Hampshire, United Kingdom. It is commonly referred to as The Lipstick because of its shape, and was successfully completed in 2008. It has, at its base, a Brasserie Blanc restaurant.
The tower was the flagship of a three-part project that consisted of The Blue Building, The Crescent and The East Size Plaza tower (No1. Gunwharf Quays). The £50m project was completed in 2010.
The building also won Best Urban Regeneration Housing Scheme in 2004.[4]