The best Queenslander extensions keep the original house as it is at the front and add something clearly new at the back or underneath. They don't copy the old house, and they don't ignore it either. The ideas below are the design decisions that make the two parts read as one home. For the practical side, including costs and council rules, see our Queenslander extensions guide.
Key points
- Keep the street front: put the new work behind or below the original roofline.
- Make the join deliberate: a glazed link, a set-back connector or a change in ceiling height.
- Keep one floor level: a step down into the new part is the giveaway of an add-on.
- Treat the deck as a room: same level as the living area, under a proper roof.
- Design for Brisbane: north light in, west sun out, breezes through.
Start with how you'll live in it
Before deciding where the extension goes, work out what isn't working now. Is the kitchen cut off from the yard? Do the kids need their own space? Do you need a room that can be shut away from the noise? The answers decide the size, shape and position of the new part. Sometimes reworking the existing rooms means the extension can be smaller than you first thought. This is the first conversation in every Queenslander renovation and extension we design.
10 Queenslander extension ideas
1. Keep the front, change the back
In a character street, the original house should still lead. Keep new work behind the main roofline or lower in form, so the street sees the same verandah and roof it always has. This is also what Brisbane's character rules generally expect for homes built before 1947.
2. Make the join deliberate
Where old meets new is where most extensions look awkward. Don't hide it. A short glazed link, a set-back connector or a lift in the ceiling marks the change, so the old house reads as old and the new part reads as new. It's also the easiest place to sort out roof drainage and any small change in level.
| Type of join | What it is | Suits | Watch for |
|---|---|---|---|
| Glazed link | A short, mostly glass room or hallway between old and new | A new wing set apart as a pavilion, or a dark middle of the house | Heat on west-facing glass |
| Set-back connector | A narrower section where the two forms meet | An extension that's wider or taller than the original | Gutters and flashings at the junction |
| Ceiling change | The floor runs through and the ceiling lifts in the new part | Narrow blocks or tighter budgets | Line it up with a beam or opening so it looks planned |
| Cladding change | Weatherboards stop and a new cladding starts at a clean line | Rear extensions out of the street view | A neat shadow line so it doesn't look unfinished |
3. Keep one floor level
Stepping down into the new part is the clearest sign of an add-on. On a high-set Queenslander, that usually means the new rooms sit up at the original floor height on posts or stumps, with the deck at the same level. It's also easier to live with as you get older.
4. Echo the roof, not the trim
Pick one thing to carry across from the old house, and the roof is usually the best choice. A gable or pitch that matches the original ties the two parts together far better than reproduction fretwork or fake period detail. Everything else can be clearly new.
5. Treat the deck as a room
For most families, the deck is the reason to extend. Plan it with the extension from the start: at the same level as the kitchen and living area, under a solid roof, big enough for a dining table and a lounge, and opened up with wide doors. A deck added later rarely gets the roof, stairs and levels right.
6. Add height to the new rooms
The original rooms have their high ceilings, so give the new ones volume too. A raked ceiling that follows the roof, or simply a higher flat ceiling, makes an open-plan room feel generous without adding floor area. Windows set high in that extra height bring light deep into the room.
7. Let north light in and keep the west sun out
Face the main living windows north, where eaves or a pergola can shade the summer sun and let winter sun in. Keep west-facing glass small, or shade it with deep overhangs, screens or louvres. In a Brisbane February, an unshaded west wall of glass makes the new room the hottest in the house.
8. Line up openings for the breeze
Queenslanders were built to let air move through. Put openings on opposite sides of the new rooms and use louvres or high windows to let warm air out. In Brisbane, summer breezes often come from the north-east and east, so think about how they'll travel from the deck through the house. Good airflow means the air-conditioning is for the worst days, not every day.
9. Keep the materials list short
Three or four materials are usually enough. Combinations that sit well beside timber and tin:
- Dark-framed glazing: clearly modern, and it frames the view without competing with the weatherboards.
- Timber: cladding, battens or ceiling linings that echo the original without copying it.
- Painted brick or rendered masonry: a quiet contrast, best on the lower level or a single wall.
- Metal roofing: standing seam or corrugated, to match the original tin roof.
10. Use the space underneath
Many of the best results combine a modest rear addition with new rooms built in under the house. The lower level suits bedrooms, a rumpus or a second living area, which means the rear extension doesn't have to be as big. Raising a house has its own rules and costs, covered in our guide to raising a Queenslander and building underneath.
Frequently asked questions
What is a modern Queenslander extension? It's a new addition to a Queenslander, usually at the rear or underneath, designed in a contemporary style rather than copying the original. The original house stays intact at the front, and the new part shares one or two elements with it, such as the roof pitch or a material.
Should an extension match the original Queenslander? No. It should complement the original, not copy it. Copies of period detail rarely convince, while a clearly modern extension that echoes the roof or materials sits comfortably beside the old house.
Can you add a deck extension to a Queenslander? Yes. The best decks sit at the same level as the living area, have a solid roof and open from the kitchen or living room through wide doors. Plan the deck as part of the extension rather than adding it later.
Can a Queenslander extension have a flat or skillion roof? Often, yes, especially at the rear where it can't be seen from the street. A low roof can sit below the original roofline and keep the new part quiet. In a character area, how much of the new roof is visible from the street matters, so check this early.
Should a Queenslander extension be timber or brick? Either can work. Timber framing suits a new wing raised to the original floor level, while brick or masonry suits the ground floor and the space under a raised house. Many good extensions use both.
Plan your Queenslander extension
Every Queenslander and every block is different, and the right extension depends on both. Start with our Quote Estimator to get a quote range for your project in a few minutes, and we'll talk through what suits your home.
