Granny flat report
The AS 2870 classification a secondary dwelling needs before the slab can be designed, priced the same as a house.
A granny flat is a house in miniature as far as the ground is concerned: it needs a slab or footing designed for the soil under it, and that starts with a site classification. Because the flat is usually at the back of the block, sometimes over old fill, a pool that was filled in, or a large tree, the classification matters more than people expect.
The fee is the same standard site classification fee: a field engineer, two boreholes where the flat is going, laboratory testing where needed and a signed AS 2870 report. If access to the back yard is tight we bring hand equipment.
What you get
Who it is for
How it works
Send the site address and what you are building. Standard sites get the fixed fee straight away; anything else gets a scoped quote before we book.
We come out with a rig or hand equipment, drill the boreholes, log the soil as it comes out of the ground and take samples for the laboratory where the report needs them.
An engineer at Australian Ground Sciences checks and signs the report. It goes to you as a PDF, ready for your builder, slab designer or certifier.
Questions
Send the site address and what you are building. Standard sites get the fixed fee straight away; anything else gets a scoped quote before we book.