Site Costs

Bushfire Construction Requirements (Victoria Only)

Bushfire Construction Requirements

In Victoria, any new residential building will be measured on a Bushfire Attack Level (BAL). The BAL measures a building's potential exposure to ember attacks, radiant heat and direct flame. Any land with a BAL rating of 12.5 or above will require bushfire construction compliance, with the rating dictating the method of construction and materials used. BAL ratings can significantly increase the cost of your build.

The Bushfire Attack Level ratings are:

  • BAL-LOW
  • BAL-12.5
  • BAL-19
  • BAL-29
  • BAl-40
  • BAL-FZ (Flame Zone)

More information about BAL can be found at Victorian Building Authority

Concrete Driveway

Concrete Driveway

A concrete driveway may not be included in your new home's base price. Concrete driveways are generally available in a range of colours and finishes:

  • Broom finish
  • Exposed aggregate finish
  • Smooth trowelled finish

Some concreters recommend having a micro-fibre concrete reinforcement installed to reduce cracking. Depending on soil conditions and if heavier vehicles will be using your driveway, a thicker sub-base might also be recommended. Your new home sales consultant can provide a quote or you may wish to engage an independent concreter to completed the work after handover from your builder.

House Setback

House Setback

Opting for a larger setback than the average provision of 10 metres will increase site costs due to additional excavation for services, extra materials and a longer driveway.

Rock Removal

Rock Removal

If rock is found when digging the foundation or channels for utilities (power, sewer, telephone/NBN, gas) it will require removal. This is usually an additional cost and can dramatically affect the price of your new build.

Sloping Lot

Sloping Lot

Building on a sloping lot will increase the cost of your build. You're likely to need a structural engineer, more excavation work, additional foundation works and the construction of retaining walls.

Soil Cut/Fill

Soil Cut/Fill

Soil cut/fill is required when your block of land needs excavation or additional soil to ensure the slab area is level. The fill that is used for site foundations is usually free of organic matter and large rocks and is not included within the base building price; the additional cost will depend on the amount of excavation and fill required.

Soil Removal

Soil Removal

Additional soil is accumulated on site during activities including the foundation cut, drainage installation and digging retaining walls. Removal of this excess soil will be an additional charge unless specifically covered in your contract. Depending on your house and land size, excess soil can sometimes be safely stored on site for you to remove or use after the build is complete.

Soil Test

Soil Test

Soil testing - where a series of soil samples are taken from your block of land - is required at the initial stage of your new build. The results of soil testing can significantly increase the cost of your new home. If your soil is found to be reactive and subject to moisture change, you may incur additional charges where extra concrete and reinforcement are required for your foundations.

Standard soil classifications are:

  • CLASS A - Stable, non-reactive(sand and rock): little or no ground movement expected as a result of moisture in the soil.
  • CLASS S - Slightly reactive(clay): slight ground movement possible as a result of moisture in the soil.
  • CLASS M - moderate ground movement(clay or silt): moderate ground movement possible as a result of moisture in the soil.
  • CLASS H - high ground movement(clay): High ground movement possible as a result of moisture in the soil.
  • CLASS E - extreme ground movement: Extreme ground movement possible as a result of moisture in the soil.
  • CLASS P - Problem sites: severe ground movement possible.
  • CLASS D - Deep ground movement: deep ground movement possible as a result of moisture in the soil.

Temporary Fencing

Temporary Fencing

Temporary fencing may be required by your local council to protect the public from the build site and keep unauthorised people from entering the site. The cost of temporary fencing is usually an additional cost; the amount will depend on whether your build requires a full perimeter or partial temporary fence. (If you already have neighbours or an existing fence around the property, a partial temporary fence at the front of the property is likely to be all that is required).

Wooden Crossover

Wooden Crossover

Wooden crossovers are used to protect your driveway and footpaths from heavy vehicles that may access the site during construction. They are usually a requirement from your local council and/or builder.