Extend Your Home With Specialist Extension Builders

Most of the clients we work with have one thing in common, their families are not far from out growing their current home and need more space to live comfortably. You have two options, sell and buy something better suited to your family’s needs, or extend your current home to suit your lifestyle.

You will face challenges with both of these options, but ultimately the goal is to decide which of these two options is most viable for your family. There are many different benefits and options to extending your home and depending on the style and age of your home this will help decide which option will be most beneficial to your family. Our aim with all extensions we complete is to tie in the extension with the original character of the home, making it look like it was there all along.

Single story extension – These style of extensions are suitable for most homes with the space on their current block to extend out from the current footprint of the home.

Second story extension – This style of extension is suitable for families that are wanting to maintain the current space on the block and smaller lot homes with a block size of less than 600m2.

Raise and build under – These projects are commonly suited to homes in older suburbs that were built pre 1950s. These projects are quite involved and commonly include major renovations of the existing house to be incorporated into the scope of work. These types of homes are commonly hardwood frame, timber cladding with either VJ boards or asbestos as the interior linings.

Image below: Aerial shot of a recent home extension project underway

Oldfield house extension in process

Our home extensions process


watara homes renovation process


Stage 1 – Enquiry

You’ve made your decision to stay in your current home and extend to suit your lifestyle. Congrats! First step is to get really clear on what you want. What are you needing to add or change about your current home? Spend some time putting thought into what you are missing in your home, and what needs to be added to your to make your home more comfortable for your family. Once you have an understanding of what you are looking to add to your home, you can send an online enquiry through our CONTACT PAGE. Within 48hrs we will jump on a 5-10 minute phone call to discuss your project. After this phone call you will receive an enquiry form. Completing all the questions on the form will then generate your project profile.

Stage 2 – Onsite Consultation

Once we have received your enquiry, we’ll arrange an onsite consultation. At our onsite consultation we’ll inspect the property and look for anything that may restrict or benefit the upcoming project. We will ask for any existing documentation you have of the property to eliminate double up on information. This will also be the time we get to know each other and ensure we are happy to proceed working with each other moving forward. We will then discuss involving one of the Building Designers we are partnered with to attend the site to draw a concept design of what we are looking to add to your current home.

Stage 3 – Fee Proposal

After our onsite consultation we will supply you with a fee proposal to outline the scope involved in the design phase of the project. At this point of our process you will gain access to our Client Portal where you will communicate with us through the design phase and keep track of the progress. The Client Portal is also where we keep up to date with payments , progress, and all other documentation.

Stage 4 – Design

Once our fee proposal has been accepted, a scheduled site measure up will be booked to return to site and start the design within 5-10 days. Throughout the design process you will have three revisions of the concept design, with the first concept being completed in 15-20 business days. Once you are happy with the concept design we will supply you with a preliminary estimate for your project. You will now have enough information to start the conversation with your preferred lender to ensure you have the capacity to take on the project. Once you are confident with your ability to move forward with the project we will arrange a preliminary agreement to finalise the remaining contract documents, this will consist of – survey, soil test, working drawings, engineering, energy efficiency, schedule of finishes and approval. Once we have all of this information we will then correlate all the documentation, subcontractors & suppliers quotes and present to you a fixed price Building Proposal for the project.

Stage 5 – Contract

All of the documentation for your project has been completed, the design and the scope of works have been defined and our fixed price building proposal has been accepted. We will now prepare a Building Contract for your project which will stipulate start date, parties involved, contract price, progress claims and other important timelines and information. If there is anything that is not clear or you have any concerns now is the time to voice them.

Stage 6 – Construction

Prior to starting work onsite we will meet onsite and run through the logistics and issue a Commencement Notice. Throughout the construction process the relationship and communication between the home owners and the Builder is a key aspect of the success of the projects we run, this is why we have invested in  platforms, systems and processes to ensure that every project we take on is as successful as the last.

Stage 7 – Practical Completion (PC) & Handover

PC means the day the subject work is completed. Two weeks prior to the date of PC we will organise a home owner and builder defects inspection walk through. We will create a defects document and sign off on the agreed and disagreed items. This will be referred to as our defects document. This list will then be addressed prior to handing over the property and issued a notice allowing the home owner to take possession of the home.

Stage 8 – Warranty & Follow up inspections

Warranty & Follow up inspections – In our handover document we will set out some important dates for follow up inspections as well as product warranty and the relevant forms for the works completed. We will schedule a 6 & 12 month follow up inspection ensuring your satisfaction with the property and attend to any minor concern that may arise as the house is getting used to having family occupancy.

House extension costs

No two projects we work on are the same. Every property is different and every design is suited to the specific needs and lifestyle of the client we are working with.

We are custom house extension specialists, we do not operate and price on a m2 rate like the volume builders, therefore we’re unable to advise you of a cost for your proposed project without the required documentation. This is why our building process includes the design stage, so that we can advise and direct the design to best suit your family’s needs and lifestyle. We are Brisbane extensions specialists—our process is trusted, and has been successful for all past clients.


Extension project before and afters

Working with growing families and being able to supply them with a solution to make their lives more comfortable in their home that they already love is what we do and what our team love.The process of having your home extended should be an enjoyable experience, as you see your home transform from what was, to what it will become.

You’d be surprised what an extension can do for your home, just take a look at a few of our favourite home extension projects.

House extension frequently asked questions


The decision to find alternative accommodation during the project will depend on the size of the home extension, which rooms are affected, and if we can manage to complete the project with you still occupying the home. The majority of our house extension Brisbane clients manage to stay in the home while we complete the project.


The logistics and time frame of extensions are very different to that of a new build, people often gasp at the timeline involved with a well executed extension “you could build a new house in 3 months”—here is the difference. We treat your home like a home not a building site, we won’t have 4-8 tradespeople working all over your home. We have a well thought-out approach to your extension which we carefully schedule taking into account a few things:
– Time frame allowed for the project
– Whether or not you are living in the home during construction
– And your working hours or days restrictions
We aim to minimise the impact the project has on your everyday living, we manage this by maintaining a clean site, containing the space of the home we occupy for storing material and equipment and running a strict schedule to finish the project on time.


A strong line of communication is key to a successful building project. We offer our clients an online portal which gives you 24/7 access to all your projects documentation and progress. You can track your financials here and project schedule along with daily progress reports completed by our carpenters each day. Normal working hours are 7am-4:30pm however if the matter is urgent you can contact Mitch on his mobile outside these hours.


We have a detailed and in-depth preparation for any renovation project we take on, and yours will be no different. After all the preparation and time we have spent on the contract documentation (working drawings, selection schedule, engineering) there will be no questions or pieces of information of your project left unanswered. This is how we can offer a fixed price Building Proposal along with a fixed price building contract. On the instance there is a change requested to the contract documentation this will be treated as a variation to the contract and this paperwork will be drafted and sent to you on our Online Client Portal for approval.


On all of our projects we designate an area which we will store all of our equipment and materials, depending if we have temporary fencing set up to contain the site. We have all of our safety documents onsite, these are adhered to at all times by all subcontractors and staff. At no point during your extension will your home be left unsecured or exposed to the weather where avoidable damage could occur. We understand that undertaking any building project can be unsettling at times which is why we treat your home as a home not a building site.


Prime cost items means an item, such as fixtures and fittings that the owner is to select either before or after the contract is signed and may include tiles, or special kitchen and bathroom items. A provisional sum is an allowance that is inserted into contract documents for a specific element of the works that is not yet defined in enough detail to accurately price.


We absolutely do. Watara Homes has undertaken house extensions across Brisbane, ranging all the way to Chapel Hill and the north side of town. The same goes for renovation projects.