Your family has outgrown your home. The rooms feel smaller than they used to. There is never enough space for everyone to do what they need to do. But you love where you live, you know your neighbours, the kids are settled at school, and the thought of selling, paying stamp duty, and starting over somewhere else does not feel like progress. It feels like a step sideways at best.
A home extension is the answer most Redlands homeowners do not think of first but end up wishing they had. Roulstone Renovations builds single storey extensions, rear extensions, side extensions, ground floor living room and kitchen extensions, and home extension and renovation combinations across Cleveland, Capalaba, Victoria Point, Thornlands, Wellington Point, and throughout Redland City. We manage the entire process from design and council approvals through to construction and handover, at a fixed price, with one team you deal with from start to finish.
With over 20 years of residential building and renovation experience across the Redlands, we know these blocks, these homes, and what it takes to add space that genuinely integrates with the existing structure rather than looking like something bolted on afterwards.

The real cost of moving house in the Redlands is considerably more than most people account for when they first start thinking about it. Stamp duty on a new purchase, agent commissions, removalist costs, the premium you pay to buy into a suburb you already live in, and the disruption to your family's routines all add up fast. A well-planned home extension delivers the extra space you need without any of that, and it adds genuine value to a property in a suburb you have already chosen to build your life in.
For many Redlands homeowners, extending is not just the more convenient option. When the numbers are honestly compared, it is often the more financially intelligent one too.

A home extension is structurally more complex than a renovation because you are adding to the building's footprint, which means new foundations, structural engineering, roof work, and integration with the existing structure. Done well, a home extension feels like it was always part of the house. Done poorly, it looks like exactly what it is: an add-on that the original builder never intended.
In the Redlands, extensions also come with site-specific considerations that a local builder understands from experience. Many Redlands blocks are affected by overlays including flood hazard zones, bushfire risk areas, or environmental buffers, particularly in suburbs closer to the bay and in the southern suburbs. These overlays affect what can be built, where on the block it can sit, and what approvals are required before a single footing is poured. Knowing the Redland City Plan and how these overlays apply to specific properties is part of what two decades of local building experience gives you.
Building approval through a licensed certifier is mandatory for all home extensions in Queensland. A development application through Redland City Council is required if the extension changes the building's footprint in ways that trigger planning assessment under the Redland City Plan, or if the property has overlays such as flood, heritage, or character protection. DA fees in Queensland typically range from $3,000 to $8,000 and the assessment process takes 8 to 16 weeks, which is why getting the approvals strategy right early is critical to keeping your project on schedule. We manage all of this for you.
The best home extensions do not announce themselves. They flow naturally from the existing home, match the materials, the roofline, and the proportions of what is already there, and make the whole house feel coherent rather than assembled in stages. Achieving this requires careful design, an understanding of the existing structure, and a builder who pays attention to the details that most people only notice when they are missing.
At Roulstone, every extension we design and build is custom to the home it is attached to. Some clients want a rear extension that opens up the back of the house into a generous open plan living, dining, and kitchen area that flows out to an alfresco entertaining space. Others want a side extension that adds a master bedroom with a walk-in wardrobe and ensuite without touching the backyard. Some want a ground floor living room extension that finally gives the family room to spread out. Others are combining an extension with a full internal renovation to transform the entire character of the home in one coordinated project.
Whatever the scope, we sit down with you at the start, work through the design, handle the approvals, and build it to the standard that has made Roulstone Renovations the most trusted name in Redlands home extensions.
Home extension costs in the Redlands vary significantly depending on the size of the extension, the complexity of the design, whether wet areas are included, and the condition of the existing structure. As a guide based on current 2026 Brisbane and South-East Queensland pricing, a simple single storey ground floor extension such as a bedroom or living area addition generally ranges from $2,500 to $4,000 per square metre. A mid-range extension that includes wet areas, more complex roof work, or integration with a full internal renovation sits between $3,000 and $5,000 per square metre. A high-end or architecturally complex extension can exceed $5,000 per square metre.
As a practical example, a 40 square metre rear extension at mid-range quality would typically cost between $120,000 and $200,000 in the current Redlands market before DA fees, engineering, and other approvals costs are added. Brisbane and South-East Queensland currently carry the highest construction cost escalation of any Australian capital region heading into the 2032 Olympic build-up period, so locking in a fixed-price contract sooner rather than later is worth considering.
We provide a detailed fixed-price quote specific to your block, your home, and your brief before construction begins. No estimates that balloon into something unrecognisable once work starts.
Yes. All home extensions in Queensland require building approval through a licensed private certifier as a minimum. This confirms the design complies with the Building Code of Australia and Queensland building standards. A development application through Redland City Council is additionally required if the extension triggers planning assessment under the Redland City Plan, which happens when the project changes the building's footprint in ways that affect setbacks, site coverage, height limits, or when the property is in an overlay such as a flood hazard zone, bushfire risk area, or environmental protection area.
Many Redlands properties, particularly those closer to the bay in suburbs like Cleveland, Wellington Point, and Redland Bay, are affected by flood and environmental overlays that add complexity and time to the approvals process. DA fees in Queensland typically range from $3,000 to $8,000 and the assessment process takes 8 to 16 weeks once a complete application is lodged. Getting the approvals strategy right from the outset is critical to avoiding delays and cost overruns. We manage the entire approvals process on your behalf as part of our full project management service.
The total timeline for a home extension in the Redlands has two distinct phases. The pre-construction phase covering design, engineering, and approvals typically takes 2 to 5 months depending on whether a development application is required and how quickly council processes it. Extensions that only require building approval through a private certifier move faster than those requiring a full DA through Redland City Council.
Once approvals are in place and construction commences, a straightforward single storey ground floor extension typically takes 8 to 14 weeks to complete. A larger extension, one that includes wet areas, complex roof integration, or is combined with an internal renovation, will take longer. We give you a realistic timeline at the outset and keep you updated throughout both phases so you always know exactly where the project stands.
In most cases, yes. One of the practical advantages of a ground floor extension over a full home renovation is that the existing rooms typically remain accessible and liveable during construction. The new extension is built alongside the house and the connection through is usually made near the end of the build, minimising disruption to daily life for the longest possible period.
There will be a period during the tie-in phase, when the new extension is connected to the existing house, where access to the affected parts of the home may be disrupted for a week or two. We plan this phase carefully to keep disruption to an absolute minimum and always let you know well in advance exactly when it will happen and what to expect. For extensions that involve significant work to the existing structure or a combined extension and renovation, a longer period of disruption or temporary relocation may be necessary, and we discuss this honestly with you during the planning stage.
Whether you're planning a full home renovation, a custom kitchen or bathroom, a home extension, or a new granny flat, reach out to the most trusted renovation builders in Redland City.