The Sentinel (sometimes The Sentinel or Sentinel Tower) is a luxury residential skyscraper in Takapuna, the central business area of the North Shore region of Auckland City, New Zealand.^[1] The tower has 30 storeys and is 120m tall.^[2] It offers views over the Waitemata Harbour, the wider Hauraki Gulf as well as over to the Auckland CBD skyline. The Sentinel was opened to the first residents in February 2008.^[1]

The building contains 117 apartments, with the uppermost two levels forming a 675 m²^[1] penthouse, which was sold in 2007 for NZ$11 million.^[3][4] A communal area on level four includes a 25 m x 6 m heated swimming pool and spa, sauna and gym facilities as well as landscaped areas.^[1]

The building contains a number of motifs, from the square (used extensively in the glass facade proportions and in smaller details), to a woven flax basket (hinted at in the latticework of the facade)^[1] to the spire on top of the building which evokes a sail, especially from further away across the Hauraki Gulf.

The Sentinel was built by Multiplex Constructions^[3] for NZ$60 million^[5] and was given a non-notified consent by North Shore City Council because the idea of having a landmark building in Takapuna was considered favourably when the developer Cornerstone Group first proposed it in 2003.^[1] The developer has also stated that the consenting regulations have since become onerous to a degree that he would not build such a building under current rules.^[5]