20 March 2014 Chapter 25 - Definitions c) Chimneys (not exceeding 1.1 metres in any horizontal direction); d) Finials where the maximum height normally permitted by the maximum stipulated height is exceeded by not more than 1.5 metres.; and e) Frost protection machines. Note: For guidance on height in relation to boundary see Figures 25.2 and 25.3. HERITAGE TREES means trees or groups of trees having either outstanding cultural and/ or heritage values, botanical values or high visual amenity. HOME OCCUPATION means an occupation, business, trade, craft or profession, other than escort agencies, brothels and massage parlours, the primary purpose of which is to derive income and is : a) Performed only by a member of the household residing in the dwelling unit or accessory building in which it is carried on; and b) Is incidental and secondary to the use of the dwelling unit for residential purposes. The person or persons undertaking the home occupation is entitled to employ one additional person that does not normally reside in the dwelling unit or accessory building. Excluded from this definition are any activities involving panel beating, spraypainting, motor vehicle repairs, fibreglassing, heavy trade vehicles, sheet metal work, wrecking of motor vehicles, bottle and scrap metal storage, rubbish collection service, wrought iron work, motor body building, fish processing, and any other process which involves continual use of power tools and drilling or hammering or any other occupation, business, trade, craft or profession which would detract from the amenities of the neighbourhood or locality. HOME STAY means the commercial use of an existing residential unit for visitor accommodation, of no more than five guests. IAHR (1989) means the paper entitled "List of Sea-state Parameters" written by the International Association of Hydraulic Research (IAHR) Working Group In Wave Generation and Analysis and published in the Journal of Waterway, Port, Coastal and Ocean Engineering, American Society of Civil Engineers, Volume 115, Number 8, November 1989, pp 793-808. ICIC means Industrial Chemicals Industry Council. ICOMOS means International Council on Monuments and Sites. INCINERATION has the same meaning as in section 2 of the Act. INCINERATOR means a specific device used solely for the purpose of incineration. INDIGENOUS means produced or naturally belonging to a particular region or area. INDIGENOUS FOREST means an area of naturally occurring woody vegetation that: • Has a canopy predominantly formed by trees over 6 metres high; • Has more than 80% closure of the canopy; and • Comprises plant species indigenous to the District. INDIGENOUS VEGETATION means an area of naturally occurring vegetation where the area covered by plant species indigenous to the District is greater than the area covered by other plant species. INDUSTRIAL ACTIVITY means the use of land and buildings for the primary purpose of manufacturing, fabricating, processing, repair, packing, or associated storage of goods and includes marine industrial activity. INTEGRATED RESIDENTIAL means any development for grouped residential accommodation DEVELOPMENT for which subdivision is considered at the same time as an integrated part of the development and irrespective of whether or not the development complies with minimum area and density requirements. 25 - 7