ok a bit of scrounging on works web site and I find the
Exempt Development code - excerpts from this are as shown:
Sheds, lawn lockers, green-houses, cubby houses, gazebos
Construction and use of sheds, lawn lockers, greenhouses, cubbyhouses, gazebos or other freestanding structures of a similar nature used in association with the occupation of a dwelling.
Number • Maximum of one such structure per dwelling.
Siting • Not located between the dwelling and the street alignment.
• Located wholly within the boundaries of the allotment.
• At least 0.6 metre from any property boundary.
• At least 1.0 metre from any sewer main.
• Does not encroach upon any easement, pipeline or watercourse.
Trees • Consent has been given for any necessary pruning, cutting down, removal or destruction of trees to allow the development.
Dimensions • Maximum height of 2.4 metres above existing ground level.
• Maximum area of 7 square metres.
Stormwater • Does not restrict the flow of stormwater or floodwaters.
Heritage • The development is carried out on land that does not have a heritage item situated on it.
Bush fire • The development is carried out on land that is not bush fire prone land.
OK now that only limits me to 7m2 that I can use so when you read the next bit - a dog house can be 10m2 - go figure.
Animal shelters
Construction and use of aviaries, kennels, hutches, poultry sheds or similar buildings (other than horse stables) used to house domestic animals in association with a lawful dwelling.
Number • Maximum of one animal shelter per dwelling.
Siting • Sited in accordance with clause 17 of, and Schedule 5 to, the Local Government (Orders) Regulation 1999.
• Not located between the dwelling and the street alignment.
• At least 0.9 metre from any property boundary.
• At least 1.0 metre from any sewer main.
• Does not encroach upon any easement, Council pipeline or watercourse.
• Located so as not to be visible from any public road.
Trees • Consent has been given for any necessary pruning, cutting down, removal or destruction of trees to allow the development.
Dimensions • Maximum height of 2.4 metres above existing ground level.
• Maximum area of 10 square metres.
Heritage • The development is carried out on land that does not have a heritage item situated on it.
Bush fire • The development is carried out on land that is not bush fire prone land.
SO that it it will be an animal shelter

now you buggers help me think up a name - I could always end up in THE DOG HOUSE