1800 957 153 [email protected]

Preliminary Estimates for Home Owners

Looking for a quick ball-park estimate to build or renovate your home?

Our Preliminary Estimate will do the trick in under 48 hours!

Looking for a quick ball-park estimate to build or renovate your home?

Our Preliminary Estimate will do the trick in under 48 hours!

Building your dream home? Renovating your castle? Can you afford it?

Calculating construction costs sounds easy, but a minor miscalculation costs hundred, or even thousands of dollars. So why take a chance? Contact our professional team to do your estimates and save thousands of dollars and hours of your time.  Get the Preliminary Estimate you deserve with Alliance Estimate!

Preliminary Estimates are perfect for giving yourself an idea as to the cost of the project. A preliminary estimate is done during a feasibility study when the project is still in the concept stage. It it has an accuracy of plus or minus 5% if the size of the renovation ranges between $200,000 and $1.5 million.

Instead of waiting weeks or even months for a builder to get back to you with a price, get an estimate back in 48 hours. You can even use it to see which builders are trying to rip you off.


What do you get in our Preliminary Estimate report?

Cost Breakdown

A spreadsheet explaining the cost for each element in the construction project.

Report of Estimates

We explain each of the elements in a construction project along with its cost.

Marked-up Plans

We “mark-up” the provided drawings so that you can see what work we’ve done

Save yourself hours, or even days of your own time!


Elements Used

A Preliminary Estimate will break down the cost of your project into the following elements:

  • Preliminaries
  • Substructure
  • Superstructure – Upper Floors
  • Superstructure – Staircase
  • Superstructure – Roof
  • Superstructure – External Walls and Windows
  • Superstructure – External Doors
  • Superstructure – Internal Walls
  • Superstructure – Internal Screens
  • Superstructure – Internal Doors
    • Finishes – Wall
    • Finishes – Floor
    • Finishes – Ceiling
    • Fitments
    • Services – Plumbing
    • Services – Mechanical
    • Services – Fire
    • Services – Electrical
    • External Services
    • Contingency

    How do we calculate preliminary estimates?

    We use averaged, square metre prices for similar projects, considering the following factors in our calculations: 

    • Type of building – E.g. project home, individual house, townhouses, apartments etc. An ambitious project will ramp up costs! 
    • Building materials – E.g. framed, brick veneer, full brick etc. Your choice of materials could raise (or lower) the estimate.
    • Finishing Touches – E.g. basic, medium, high, prestige. A high-quality touch is great for the house but will cost more. 
    • Location of the project – Prices are indexed to the closest capital city and loadings for regional areas, and applied thereafter. 
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    Save money with Preliminary Estimates

    New Build - Floor Plan Only

    $325

    A standard residential house up to 350m2 floor area, with no allowance for any external works.  Perfect for concept plans or if you don't have a site plan.

    *Only group elements 1-6 & 9-14 will be estimated (see first column of this PDF).

    New Build - Incl Site Plan

    $415

    A standard residential house up to 350m2 floor area, including external works such as fencing, driveways and retaining walls. Must provide a site plan.

    *Only group elements 0-6 & 8-14 will be estimated (see first column of this PDF).

    Renovation or Extension

    From $575

    A standard renovation or extension to a standard residential house. Includes demolition and external works. POA, but typically from around $575. 

    *All group elements 0-14 will be estimated (see first column of this PDF).
    All prices are inclusive of GST.

    Need more information?

    Do you have more questions? We are happy to answer them! Call us at 1800 957 153 or fill out the form below.

    Have a look at our other estimate services

    • Preliminary Estimates
    • Composite Estimates
    • Detailed Estimates
    Looking for a quick ball-park estimate to build your home? We can get a Preliminary Estimate done in just 2 days!