Quantity Surveying & Cost Estimation Services

We're here to empower individuals and businesses of all kinds with top-tier support for their dream projects, paving the way to your ultimate construction success.


+61 415 533 622

Doveton Av Eumemmerring, Vic 3177


+61 423 609 877

Harry Avenue Lidcombe, NSW 2145


+61 424 050 905

The Vale, Willetton,WA 6155

Our Services

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Estimating and Tendering

CostLogic can provide full Estimating and Tendering solutions to all our clients

Tender & Contract Documentation

Cost Logic can provide both accurate and detailed tender documentation including Bills of Quantities for our clients

Budget Estimating & Cost Planning

Cost Logic can provide a budget estimating and cost planning in order to control expenditure

Valuations of Work

Ensures that the construction works completed on-site are accurately valued and costs are controlled

Bills of Quantities

Cost Logic can produce accurate and detailed Bills of Quantities for Client to obtain competitive tendering


CostLogic will provide our clients with the following services in regards to variations…

Final Accounts

CostLogic offer to undertake all works entailed to settle the final account.

Cost Consultancy

Cost Logic provides cost consultancy services where we advise clients on the total cost of the project, feasibility, site planning, and more.

Bank QS Report

Cost Logic provides cost Progress Claim Validation and Cost QS Reports to Banks and Financial Institutions.

About Cost Logic

Cost Logic Pty Ltd is a registered Quantity Surveying Company in Australia, consisting of fully qualified chartered quantity surveyors providing a wide range of Qs and Construction Consultancy services for clients throughout Australia.

Our aim is to provide individuals and companies of all types with the support they need to achieve the ultimate in cost- efficiency on all types of construction projects.

We currently operate in a range of market sectors including Residential developments, Office developments, Commercial developments, industrial developments, Health and Refurbishment/ renovation works.

What client’s say about us?

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Frequently Asked Questions

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Cost Logic provides quantity surveying and construction cost consulting services to builders and construction companies in Sydney, Melbourne, and Perth. We cover all services related to quantity surveying including budgeting, bill of quantities, final accounts, and tendering. Our capabilities spare companies thousands of dollars because they do not have to hire or set up a separate department to have all these services completed

Yes, we provide cost estimates for all our clients. We will use your own supply prices to estimate the total cost of the project. We will calculate the supply prices ourselves if you do not have your own. Our pricing scheme is location-based.

Yes, if you have a specific format please send it to us. We will compile the take-off – following the format you provided. We would prefer you to send us the template before we start the take-off process.

Bills of Quantities quantifies all the materials for the construction project. The construction materials are measured in volume, time, length, and area. Ideally, the Bill of Quantities will also contain repair and maintenance terms, an agreement with a successful supplier about the total sum. Suppliers use the Bill of Quantities to calculate their supply quote.

How long we take to produce the bill of Quantities largely depends on the scope and scale of the project. The larger and more complex the project is, the longer it takes to produce the document.

We need finalised design plans, consent, and reports from architects, mechanical engineers, structural engineers, and other specialist consultants.

For cost planning and budgeting, you need the following:

  • Initial cost appraisals
  • Elemental cost plans
  • Approximate quantities of cost plans
  • Contract sum
  • Contract sum analysis
  • Prices on materials (provided by specialists).

Cost planning continuously evolves throughout the project as the designs are finalised.

A cost plan will consist of the following:

  • Preliminary approximate estimate – A realistic first-time estimate
  • Cost plan – How the estimate is divided among the materials
  • Cost checking – Consultants will check if the design plan is achievable within the current cost plan

Our quantity surveyors will look for ways to reduce the number of elements to achieve the design plan but at a lower cost.

Section 94 allows the town council to levy a fee on developers. The fee is used to extend support for public facilities, which will be under additional stress because of the development project. To put it simply, the council will leverage a fee from the development project to fund public facilities because more people use them due to disruption from the development project.

A Section 94 fee is a percentage of the construction project, which means, a large project will incur a larger fee. Hence, our Section 94 Council Estimates help you determine the Section 94 fee. We will look for ways to reduce the fee, so you are not paying more than you have to.

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