Home extensions in Brisbane, built start to finish.
Nailed It Creations designs and builds second storey additions, ground floor extensions and home additions across Brisbane, fully managed from concept to handover. We are a QBCC licensed, family-owned builder, and we engage the engineers and certifiers so the approvals are handled for you.
A bigger home without the move
A well-built extension gives a growing family the room it needs and adds real value, without the cost and upheaval of buying and moving. The trick is an extension that looks like it was always meant to be there, not bolted on.
Nailed It Creations has been extending Brisbane homes since 2013. We take you from the first idea through design and approvals to a finished space that matches the existing home in light, proportion and finish. One team, one point of contact, start to finish.
Why extend with Nailed It
- A fixed scope before you commit, so there are no surprises
- Engineers, certifiers and approvals handled for you
- New work matched to the existing home, inside and out
- A licensed Queensland builder you can hold accountable
Every kind of extension
Whether you build up, build out or open the home to the garden, we plan it around how you live.
Second storey additions
Add a whole floor of bedrooms, bathrooms or a retreat without losing your yard.
Ground floor extensions
Extend out for a bigger kitchen, living or extra bedroom on a single level.
Home additions
A new room, ensuite, studio or home office worked into the existing layout.
Kitchen & living extensions
Open up the heart of the home and connect it to the outdoors.
Alfresco & outdoor
Decks, alfresco rooms and covered areas built for the Brisbane climate.
Dual living & granny flats
Self-contained spaces for family, guests or rental income.
How much does a home extension cost in Brisbane?
As a general Brisbane guide, ground floor extensions start around $90,000 and second storey additions from about $300,000. The real number depends on size, site access, finishes and approvals.
We do not believe in vague estimates. After a consultation we give you a fixed scope, so you know exactly what is included before you commit to anything.
Start a conversation| Extension type | Indicative Brisbane range |
|---|---|
| Single room / ground floor addition | $90,000 – $180,000 |
| Large ground floor extension | $180,000 – $350,000 |
| Second storey addition | $300,000 – $550,000+ |
| Deck / alfresco / outdoor | $25,000 – $80,000 |
Indicative market guidance for Brisbane only, not a quote. Final cost is set by your design, site and finishes, and confirmed in your fixed scope after the estimate stages.
Your extension, step by step
A clear path from first chat to the day you move back in.
- 1
Enquiry
Tell us about the project. We send a short questionnaire so we understand the detail.
- 2
Budget estimate
Paid. Real numbers to work with, before anyone spends money on detailed design.
- 3
Design & estimate
Paid. Concept and design, then a detailed fixed-scope estimate before you commit.
- 4
Build & handover
Contract, engineering and approvals, construction, then practical completion.
Holland Park renovation and addition
A full renovation with an added level on a steep Holland Park block, designed around a family’s changing access needs. A 2024 Master Builders Awards finalist.
View the projectOften built alongside an extension
Knockdown rebuild
When the home is past extending, we start fresh on the block you love.
Learn moreKitchen renovations
A new kitchen is often the heart of an extension. We design and build both together.
Learn moreCustom home builds
Building new instead? We craft custom homes around how you live.
Learn moreHome extension questions
The things Brisbane homeowners ask us most. Anything else, get in touch.
How much does a home extension cost in Brisbane?
As a general guide, a ground floor room addition in Brisbane typically runs from about $90,000 to $180,000, a larger ground floor extension from $180,000 to $350,000, and a second storey addition from around $300,000 upward. Your final cost depends on size, site access, finishes and approvals. We give you a fixed scope after the estimate stages rather than a vague estimate.
How long does a home extension take to build?
Most home extensions take three to six months on site once approvals are in place, with roughly one to three months of design and approvals before that. A single room addition is faster than a full second storey, and we give you a clear timeline before work starts.
Do I need council approval for a home extension in Brisbane?
Most extensions need either building approval or a development approval through Brisbane City Council. As part of the build we engage the engineers and certifiers and handle the approvals for you, so you are not chasing paperwork.
Can I keep living in my home during an extension?
In most cases yes, especially for ground floor extensions and many second storey additions where we can stage the work. We talk through access, noise and any short disruptions at the planning stage so there are no surprises.
Should I extend or knock down and rebuild?
Extending suits homes with good bones and a layout worth keeping. A knockdown rebuild can make more sense when the existing structure is failing or the changes are extensive. We give you an honest view after seeing the home, since the right answer depends on your block, budget and goals.
Is it better to extend out or add a second storey?
It depends on the block and on what is already there. Extending at ground level is usually simpler and cheaper per square metre, but it uses yard. Going up keeps the footprint, but the existing frame and footings have to carry the new load, which needs an engineer's assessment first. That is one of the things the budget estimate settles.
Thinking about extending?
Tell us about your block and we will send you a short questionnaire, so we understand the detail before we talk numbers.