Fire BAL or Bushfire Attack Level: The Department of Justice web page found here

http://www.justice.tas.gov.au/building/regulation/building_in_hazardous/...

advises in part as follows:

There are special requirements for the design, construction or alteration of certain types of buildings that are situated in a bushfire-prone area.

Am I in a Bushfire-Prone Area?

Your land is most likely to be in a bushfire-prone area if you have, within a 100 metre radius of your building site:

• any unmanaged vegetation (including grass) greater than 1 hectare in area; or
• vegetation that is not on land that is zoned general residential, inner residential or village

The risks to a habitable building from that vegetation will need to be assessed before new building work is permitted.  

Mapping of bushfire-prone areas for planning schemes is being developed to assist owners and developers.

Note that other vegetated land within 100m of the building site, that is not zoned as residential, including private forest, farmland or a Crown land reserve, or is not one of these three types of residential zoned land, still has to be assessed for its potential effect on the subject building site.

 

Things have changed in recent times and accordingly we refer you to a number of good web sites below to better understand the requirements relating to these locations

Australian Standard®
Construction of buildings in bushfire-prone areas

https://law.resource.org/pub/au/ibr/as.3959.2009.html

 

http://www.fire.tas.gov.au/Show?pageId=colBuildingForBushfire

http://mybuildingcertifier.com.au/forms/MBC-BAL-19-Summary.pdf