How to avoid variation during construction
Under ABIC Simple Work Contract, a variation can be a change to:
- the scope of the works as contemplated by the contract documents and capable of being executed under the contract
- a dimension or level of the works
- the materials, workmanship or quality of any part of the works
- a detail of the works, or
- the order of precedence of the contract documents
ABIC Simple Work Contract enables the Architect to give the contractor a written instruction for a variation at any time before the date of practical completion. The instruction for a variation may include an instruction to the contractor to provide a detailed estimate of the whole, or any part, of the cost, or any saving, as a result of the variation and the effect of the variation on the date for practical completion.
A variation to the contract work may have a positive or negative result to the contract price and or the date for practical completion. In most instances, a variation can be costly during construction because of;
- added material cost – particularly if materials have already been ordered
- extra labour or work cost – different tradesmen might be required to return to the site to alter their previous work to accommodate the changes
- additional engineering, drafting or approval expenses
Tips to avoid expensive variations:
- Be specific – especially before the contract is signed. Ensure everything has been specified in the contract documents such as, quality of the fitting and finishes, brand, model, colour and any other special requirements one may have.
- Go through the contract documents thoroughly with the builder – During tender stage, it is vital to ensure all potential contractors understand the scope of work and if there is any risk or important factor that might affect their quotation. At BY Projects Architecture, we believe that it is a good practice to invite all potential contractors to the site early in the tender process. This allow the contractors to discover any opportunities or difficulties they might face during construction; hence they can provide a more detailed and accurate quotation.
- Comprehensive tender quotation analysis – We always require all contractors to provide us a detailed trade breakdown to ensure that they have quoted on what has been specified in the construction drawings and specification. This will minimize any misunderstanding and variation during construction.
- Be honest and up front with the contractor and yourself – It is important to understand that nothing comes free, therefore it is vital to set a realistic budget and expectation. This will avoid contractor low-balling quotes in the hope of securing the job and then increase their profit margin by charging mercilessly for the variations you’ll inevitably have to request.
Howard Siow
Graduate
M.Arch (MELB) Hons, RAIA
BY Projects Architecture
26/10/2017
I highly recommmend the team at BY Architecture.
Barbara, Howard and the team designed a wonderful extension to my late 1960s Melbourne home, ran the tender process to find me a builder, and superintended the build contract.
The design process that Barbara took me through was comprehensive, well-considered and highly collaborative, and the resulting extension and renovation was incredibly well-tailored to my specific needs and desires.
The tender process was similarly well-run, and we ended up choosing a builder that Barbara had worked with many times before and recommended. The recommendation was a great one and the entire build ran very smoothly, with the many quirks arising in a typical renovation being dealt with intelligently and with no fuss.
During the entire time I worked with them, Barbara and her team went over-and-above to keep me happy. As a result of their attention to detail and their focus on customer service, they ensured that what can often be a stressful time was actually a pleasure. I cannot thank them enough and would work with them again in a heartbeat.
Barbara, Howard and the team designed a wonderful extension to my late 1960s Melbourne home, ran the tender process to find me a builder, and superintended the build contract.
The design process that Barbara took me through was comprehensive, well-considered and highly collaborative, and the resulting extension and renovation was incredibly well-tailored to my specific needs and desires.
The tender process was similarly well-run, and we ended up choosing a builder that Barbara had worked with many times before and recommended. The recommendation was a great one and the entire build ran very smoothly, with the many quirks arising in a typical renovation being dealt with intelligently and with no fuss.
During the entire time I worked with them, Barbara and her team went over-and-above to keep me happy. As a result of their attention to detail and their focus on customer service, they ensured that what can often be a stressful time was actually a pleasure. I cannot thank them enough and would work with them again in a heartbeat.
Barbara is very friendly and easy to work with. Thank you for the great advices.
Response from the owner 23:14 17 Jun 24
thank you Arik. Happy to be helpful 
Barbara and the BY Projects team were fantastic to work with for our knockdown-rebuild. We had no idea what we were doing or getting ourselves in for, and through every stage of the process Barbara explained everything and was supportive and transparent.
She drew plans for a beautiful house for us which fulfilled everything we wanted while adding such flair and style that we never could have imagined ourselves.
I was so glad to have her and her team on my side throughout the build process, as we would have struggled to advocate for ourselves (or even notice) mistakes or defects by the builder.
Overall, we just couldn’t be happier with the final result.
She drew plans for a beautiful house for us which fulfilled everything we wanted while adding such flair and style that we never could have imagined ourselves.
I was so glad to have her and her team on my side throughout the build process, as we would have struggled to advocate for ourselves (or even notice) mistakes or defects by the builder.
Overall, we just couldn’t be happier with the final result.
Response from the owner 06:53 31 May 24
Thank you for your enthusiasm Emily. And thank you for trusting us with your dream Home. It's been a pleasure working with you and your family, and we trust you will enjoy your home for the years to come. 
We recently had the pleasure of carrying out a renovation for Barbara and BY Projects Architecture.
The project ran very smoothly from receiving the plans, to handover day.
Barbara pays very close attention to detail and takes great pride in her work.
We look forward to working with BY again on future projects.
The project ran very smoothly from receiving the plans, to handover day.
Barbara pays very close attention to detail and takes great pride in her work.
We look forward to working with BY again on future projects.
Response from the owner 22:11 30 Mar 21
Thank you Koray. It was a pleasure working with AMCON Homes, we look forward to working with you again in the future. 
Barbara provided excellent professional advice regarding Town planning and approval process by the Council. She went out of her way to find the right information and help me. Will surely use their services again when necessary.
I would highly recommend them.
I would highly recommend them.
Response from the owner 01:37 16 Feb 21
Thank you Jarardhan. We do hope you find a more suitable site soon to build your dream homeBarbara 
We were in a very difficult position after a VCAT rejection. Barbara came into our project and reimagined what was possible with our property. Going from a house with three shops with significantly reduced value to a development with two town houses, a cafe and all able to be subdivided into three separate properties. Barbara was positive, enthusiastic, charming at planning meeting and all in all kept us positive and hopeful. Barbara went through the whole process with us and I would say went above and beyond what would generally be expected. She worked well with our development team, working out strategies for planning challenges. We are very thankful for her time and energy.
We engaged Barbara and her team many times over many years for our Building Development Projects, including Multi Residential, Child Care and Mixed Use. Most recently for a couple of houses in Port Melbourne with complex Heritage Overlay requirements.
Barbara worked with us closely to ensure all design requirements were achieved to exceed market expectations. All permit requirements were managed in a professional and timely manner, and all processes were met on time and on budget.
The finished buildings were outstanding and the realized sales well above market expectations.
We highly recommend BY Projects Architecture for their Design sense and construction experience.
Barbara worked with us closely to ensure all design requirements were achieved to exceed market expectations. All permit requirements were managed in a professional and timely manner, and all processes were met on time and on budget.
The finished buildings were outstanding and the realized sales well above market expectations.
We highly recommend BY Projects Architecture for their Design sense and construction experience.
I have worked with Barbara and the team at BY Projects on a number of projects now. Its hard to think how you could get better value for money. They are great architects - that goes without saying. But its the extra mile they go to on your behalf in order to secure the very best for you that makes all the difference. I wouldn't hesitate to recommend them for your next project.
Response from the owner 06:02 24 May 19
Thank you Virginia for your kind words. It is always a pleasure working with you. 
