Site Testing

Site Testing

Tiny is the new Big

Site Tests

Site testing is one of the most important elements in the process of building your home. 

Site tests allow us to determine and understand what is beneath (and above) the surface of ground level, and how does this effect the way your new dwelling can be built. 

Although some site reports are relatively straight forward, there are others that may require lengthy Council applications, are resource heavy and ultimately may not reach approval stage.

 When we begin the process however, we identify most of the reports required to achieve a great build outcome on your site – however, Council may suggest and request other reports along the way which may not be so easily identifiable at the beginning. 

Site Tests - What Do They Mean?

Soil Testing

  • Soil Tests are needed when constructing a new residence, shed or extension. Soil tests are also known as Site Classification Reports and are used to determine the Sites Classification so an appropriate footing or foundation design can be made. 
  • Site Classifications Reports involve soil testing to define the soil reactivity and help determine an appropriate founding depth for the footing of the proposed structure. This will reduce the likelihood of having slabs and brickwork cracking in the future. 
  • Reactive soils absorb water and this is when problems can arise if the building foundation design is not appropriate to compensate for the expected movement. A soil test must be conducted to adhere to council’s building and planning requirements. 

Identification Survey

  • An Ident Survey is required for all older properties (and some newer ones too!) to determine the correct boundaries; An Ident shows the position of boundary fences and confirms they are correctly located on the land and the Title reference is correctly lined up with the street in relation to boundaries and shows any encroachments by or upon the subject land. 
  • It will also reveal the existence of any easements (for drainage, etc.), covenants and restrictions on land use, and whether or not the subject land complies with the terms and conditions. 
  • The Ident Survey will also report on the distances of the walls or eaves and gutters from the side boundary of the land. 

Contour Survey

  • A contour and detail survey is essential in this process. Typically, it provides the location and levels of existing areas by surveying at ground level, underground and above ground (services). It takes in features including trees, footpaths and other key surroundings/structures within your land parcel. It also includes some detail on an adjoining property if required. The amount of detail provided depends on the scope of the design and outcomes of your granny flat.  
  • Data gained by the surveyor is used to produce a detailed plan which is essential in providing accurate information for designers/architects. It assists them in generating the best design possible for your site and making it compliant with local councils. It also protects you against future implications in regard to flooding.

Effluent Disposal

  • Effluent Disposal Reports (sometimes referred to as wastewater design or percolation testing) is normally required if the allotment is in an unsewered area, and requires some form of on-site effluent disposal. A report may also be required on sites that have a ‘failing’ system or if extensions to an existing residence are being undertaken. 

Build Over Sewer

  • Build over Sewer Application is required if there is a sewer easement through the proposed site location. Additional engineering will generally be required in the form of a footing detail is over the sewer pipe location. 

Slope Stability

  • Slope stability assessments measure how stable the site is, find potential landslip areas, and recommend ways to keep your site stable such as retaining walls and drainage. Such an assessment is mandatory as part of the development or building approval process if your site is located within Council’s Landslide Hazard or Steep Land overlay areas. 

Bushfire Assessment

  • Bushfire attack level is a graded assessment of the severity and risk for a building’s exposure to ember attack, radiant heat and direct flame contact. There are five different exposure classes ranging from 12.5 (very low risk) to FZ (extreme risk).

Boundary Relaxation

  • Although not easily achieved on every block, boundary relaxations may be required if the proposed house location encroaches on the predetermined setbacks.  Our Certifier will often advise the likihood of such approval during the process before we determine if we can press ahead. 

Talk To Us

If you would like to know more about our Sustainability elements, what our Tiny Home Inclusions are, or just want to book a site meeting on your land, call and ask all of the questions! 

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NOTE: We build secondary dwellings across the North Brisbane and Sunshine Coast regional council regions only.

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