18. Open Space 2 Zone Volume Two [R] 18.1.14. Discharge of human effluent into or onto land. [R, D] 18.1.15. Geotechnical bore construction or alteration for the purposes of investigation of sub-surface conditions. 18.2. Standards that apply to all permitted activities 18.2.1. Construction and siting of a building or structure. 18.2.1.1. The total gross floor area of a building must not exceed 100m. 2 18.2.1.2. Permanent buildings must not cover more than 5% of the net site area. 18.2.1.3. The maximum height of a building or structure (except a pole, support structure or fixture associated with artificial lighting) must not exceed 10m. 18.2.1.4. A building or structure must be set back a minimum of 4.5m from a road boundary. 18.2.1.5. A building must be set back at least 10m from land in any other zone. 18.2.1.6. A building sited on Lansdowne Park must be setback at least 50m from any adjoining land zoned Urban Residential 2. 18.2.1.7. The height of any fence, or any part of a fence, adjoining any land zoned Urban Residential 1, Urban Residential 2 (including Greenfields) or Urban Residential 3 must not exceed 1.2m. 18.2.1.8. A building or structure (except a goalpost, post or pole, or lighting tower) that has the potential to divert water must not be within a Level 2 Flood Hazard Area. 18.2.1.9. A building or structure (except a goalpost, post or pole, or lighting tower) must not be within a Level 3 Flood Hazard Area. 18.2.1.10. Buildings must not be sited closer than 8m to a river, lake, Significant Wetland, drainage channel, Drainage Channel Network, the landward toe of a stopbank or the sea. 18.2.2. Noise. 18.2.2.1. An activity must not cause noise that exceeds the following limits at the zone boundary or within the zone: 7.00 am to 10.00 pm 50 dBA L Aeq 10.00 pm to 7.00 am 40 dBA L Aeq 70dBL AFmax This standard does not apply to sirens and call out sirens associated with the activities of the New Zealand Fire Service. 18.2.2.2. Noise must be measured in accordance with the provisions of NZS 6801:2008 Acoustics – Measurement of Environmental Sound, and assessed in accordance with NZS 6802:2008 Acoustics – Environmental Noise. 18.2.2.3. Construction noise must not exceed the recommended limits in, and must be measured and assessed in accordance with, NZS 6803:1999 Acoustics – Construction Noise. 18 – 2