period of time. Advice from geotechnical engineers has seen all greater Christchurch land divided into four residential zones -- red, orange, green, and white. At the time of the announcement around: 5,000 residential properties were in the red zone, where it is not feasible to rebuild on the land at the present time 10,000 properties were in the orange zone, where engineers need to undertake further investigations 100,000 properties were in the green zone, where homes can be repaired and rebuilt, and the white zone has a combination of areas that are still being mapped or are non-residential. On 18 August 2011 the Canterbury Earthquake Recovery Minister Gerry Brownlee announced the Waimakariri District land decision to date: The government made offers to purchase a further 940 properties in Kaiapoi and Pines Beach north of Christchurch. Of the 1,230 residential properties zoned orange for further investigation on 23 June, 860 in Kaiapoi and 80 in Pines Beach have now been zoned red, 220 in the northern part of Kaiapoi have been zoned green and a further 70 in the western part of Kaiapoi will remain in the orange zone for the time being for further investigative work. Earthquake Recovery Update Issue 3 (28 September 2011), states: 4,840 residential red zone property owners have been made an offer to purchase their property by the Crown. 7,800 households are in the orange zone awaiting decisions on their land. Estimated households An estimate of all households usually living in New Zealand at a given