Raise and Builder Under Brisbane
End-to-End Solutions
Quality Craftsmanship
Reliable Finish Times
Direct Builder Engagement
Call Diana To Get A Free Estimate
(07) 3130 0309
Raise and Builder Under Brisbane
End-to-End Solutions
Quality Craftsmanship
Reliable Finish Times
Direct Builder Engagement
Call Diana To Get A Free Estimate
(07) 3130 0309
House Lift and Build Under Extensions Brisbane
Looking for a company to do a raise and build under in Brisbane?
A raise and build under lets your home rise to the occasion, giving you more space without losing the character you love. By lifting the house and opening up the level beneath it, you can turn an underused area into a bright and modern living space whilst maintain the charm of your Queenslander.
Whether you want a garage, extra bedrooms or living areas, or a self-contained dual living setup for rental income, this kind of under house extension gives you the flexibility to shape the lower level into functional, modern space that suits your needs and lifestyle, whilst maintaining maximum yard space.
Why choose us for your Queenslander lift and build under project?
- End-to-End Solutions – We manage your entire house lift and build under project from initial designs, and approvals to the house raise itself and build under stages all the way through to completion.
- Quality Craftsmanship – Our team delivers reliable, high-quality workmanship on every project we complete.
- On-Time Delivery – We keep your raise house to build under project running smoothly and on schedule.
- Local Family Business – Work directly with a Brisbane builder who knows how to raise a house and renovate with accuracy and care.
It’s time to bring new life to the space beneath your home.
Call us for a free consultation and project cost estimate today!
Call Diana To Get A Free Estimate
(07) 3130 0309
Don’t get lost in the maze of house raising planning and execution.
Navigating the complexities of design, engineering, approvals, and construction for your house extension can be overwhelming. Without a cohesive, comprehensive service, homeowners often find themselves juggling multiple contractors, leading to confusion, stress, and inevitable project delays.
Seamless Raise and Build Under Solutions
When you’re planning a raise and build under, it’s easy to feel confused and exhausted navigating all the technical requirements before the work even begins. You’re excited for the extra space, but the thought of juggling approvals, timelines, budget, and different contractors can sit in the back of your mind like a constant worry. The excitement of creating new space can fade fast when organising engineers, certifiers, designers, and builders becomes your responsibility.
That’s why having the right builder beside you makes all the difference. You deserve a team that brings clarity to the process and removes the burden of managing multiple professional contractors. When we oversee your raise and build under we organise the entire process for you making the project simple, stress free and exciting.
If you’re considering a Queenslander house lift, here’s how we support you through every stage:
End to End Solutions
We coordinate the entire raise and build under process for you — design, engineering, approvals, and construction — so you’re not left juggling contractors or paperwork on your own.
Quality Craftsmanship
Your home is built with care by experienced trades who understand the details that matter in raised homes. The focus is on solid workmanship that looks cohesive with the original home and holds up well over time.
Reliable Finish Times
We plan each stage carefully and communicate clearly, helping your project move forward smoothly and avoiding the delays that often happen when multiple contractors aren’t aligned.
Direct Builder Engagment
You work directly with a Brisbane builder who values communication, trust, and hands-on involvement from start to finish. With a personal approach, your home is treated with the care it deserves.
Choosing to raise and build under your home is a big decision, and it deserves the right support from day one. With the right guidance, the process feels simple, straightforward and far more exciting, as each step brings you closer to a home that truly fits the way you live. When everything is handled with care and clarity, you can move forward with confidence, knowing your home is in experienced hands.
Let your home rise without the stress.
Get in touch today to get a 100% free builder consultation and cost estimate!
You're In Excellent Hands with ADG
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ADG Construction was easy to deal with and their tradies were very good. The extension we planned was very well done with any unexpected problems dealt with. The only problems we encountered were with the sub-trades who kept coming and going causing some delays due to them not completing their part of the job. Overall I would recommend ADG Construction for any renovation project. Very pleased with the end result. Our dream project coming to reality has been an overwhelming experience. Our renovation was huge with an extension over our media room, main bathroom, ensuite and powder room. This has substantially added value to our home. A massive thanks to Arron and his team; Alex and your staff ~ a job well done.
Lucia Townsend
12 November 2025 -
Alex and his team are great to deal with and I’d highly recommend them. There were some delays and hiccups along the way, but all issues were resolved without too much fuss. The home extension looks great and the family is happy.
John Ho
1 November 2025 -
Alex and his team do an amazing job, can’t recommend them enough
Jack Cuthbertson
5 June 2025 -
I recently engaged in a house extension project, went through 2 previous builders who weren’t fit for the job. After a quick search I contacted ADG, Alki specifically and obtained an estimate within 2 days. Extension went very smoothly and their trades had even done extra work after hours to make up for multiple rain days where no work was done. If anyone is looking to renovate ADG should be their first choice. Alki and Alex did a wonderful job.
Parea
9 May 2025 -
Loved working with these guys! Always communicated really promptly and very professional.
Vada Chant
8 May 2025 -
Would definitely recommend these guys for bathroom, kitchen and other renovations. The team are all very professional, genuine and honest compared to many others
Alex Dempster
26 October 2023 -
ADG have helped me build and design my dream home. They were super efficient and had great communication. We were always kept up to date with progress and were very lenient with our suggestions. ADG refuse to cut corners and are willing to spend more time and money to ensure everything was done professionally and according to the AS. 10/10. Would recommend to anyone wanting to renovate. Thank you so much to ADG and their responsive, friendly, experienced team
Thomas Clarke
26 September 2023 -
I provided ADG with a tough design and they surpassed my expectations - would highly recommend for any construction job. Very friendly service as well
Callum Wishart
26 September 2023 -
Working with ADG was frictionless and positive. Extremely satisfied with the amazing service and friendly support. The renovations turned out phenomenal
Hamish Nelson
26 September 2023 -
Had the team at ADG quote up and deliver an excellent final product on my town house renovation. Highly professional, with excellent attention to detail and excellent communication. Would 100% recommend anyone needing a ground up job or even just a basic renovation.
Chiara Castellani
26 March 2023
Call Diana To Get A Free Estimate
(07) 3130 0309
A Sample of Our Previous Projects
5 Easy steps to a Seamless House Lift
Free Consult
Alex — our director, builder, and qualified engineer — meets you onsite to assess your home, discuss your goals, and outline what’s possible for your Queenslander build under. You’ll receive a free cost estimate, project timeline, and a complimentary concept floor plan to help visualise your new under-house space.
Design
Our architect or draughtsman creates detailed plans for your raise and build under, including floor plans, elevations, and 3D renders. Structural engineers design the lift, new supports, and slab (if required). We refine the design with you until it’s exactly how you want it.
Documents
We prepare and coordinate all required approvals — BA, DA (if needed), soil tests, engineering certifications, and building certifier documentation. Once complete, we provide a fixed-price quote so you have full clarity before construction begins.
Construction
We safely lift your home, install new stumps or steel posts, and build out the new lower level according to the approved plans. Our team works efficiently with minimal disruption and provides weekly updates. All work is independently certified and backed by our workmanship warranty.
Enhanced Lifestyle
Your newly raised home is ready to enjoy. The new level delivers bright, functional space tailored to your lifestyle — whether it’s extra living areas, a garage, or dual-living. With a 6.5-year warranty, you can settle in with complete confidence.
Call Diana To Get A Free Estimate
(07) 3130 0309
6 Benefits of a House Lift and Build Under
Gain More Living Space Without Moving
Create extra bedrooms, living areas, home offices, or entertainment spaces without leaving the suburb or neighbours you love.
Keep the Character of Your Queenslander Home
Maintain the charm and street appeal of your existing home while upgrading the functionality beneath it.
Improve Flood Resilience
Lifting your home provides added protection during Brisbane’s storm seasons and heavy rainfall, helping reduce flood-related risks for properties in low-lying or flood-prone areas.
Increase Property Value & Rental Potential
A well-designed lower level can dramatically boost resale value or create an opportunity for self-contained dual living.
Better Use of Under-House Space
Dark and unused under-house areas can be transformed into bright, modern rooms that add long-term functional benefits.
Improve Natural Light & Ventilation
Raising the home helps capture breezes and natural light, making the upper level feel fresher and more comfortable in Brisbane’s hot and humid climate.
Brisbane Raise and Build Under FAQs
What is the cost of raising a house and building underneath in Brisbane?
The cost of a raise and build under in Brisbane generally starts from $150,000–$250,000+ for a basic lift and new lower-level build, but the total price varies depending on the height of the lift, the size of the new floor area, the complexity of the engineering, the number and types of rooms and the level of finish you want for the downstairs space.
Factors influencing the final price include:
- The size of the lower level being built
- Whether you’re adding bathrooms, laundry, or kitchen facilities or just bedrooms/ living areas
- Slab vs. suspended flooring
- Structural steel requirements
- Internal layout complexity
- Slope and access to the site
- Level of finishes and insulation
- Whether major reconfiguration is required upstairs
Want a more accurate figure? Every home is different so the best way to get a clear cost estimate is through our 100% free onsite consultation. Call us today on (07) 3130 0309 to book your free consultation so we can assess your home’s structure and your goals, then provide you with a project cost estimate based on your home and your needs.
How long does a raise and build under project take?
Most raise and build under projects in Brisbane take 4 to 6 months from the start of construction, depending on the size and complexity of the home.
The full timeline typically includes:
- 2–8 weeks for design, engineering, soil tests, and approvals
- 1–2 weeks for the physical raise
- 3–5 months for the build-under construction, services installation, and internal fit-out
Larger homes, sloping blocks, major reconfigurations, or premium finishes may extend the timeframe.
What kind of houses are suitable to raise and build under?
Many Brisbane homes are ideal candidates for raising and building underneath, especially:
- Queenslanders and character homes, common throughout Brisbane’s established suburbs
- Post-war timber houses, widely seen in middle-ring areas such as Camp Hill, Carina, and Indooroopilly
- Homes with good structural integrity and timber framing, which are well suited to lifting
- Houses already elevated but not at legal height
- Properties needing extra space without extending outward, especially on narrower blocks
These styles typically sit on stumps, making the house easier to lift and reposition. They also benefit the most from improved airflow, natural light, and additional living space.
What kind of houses are not suitable to raise and build under?
While many Brisbane homes can be raised, some structures are generally not suitable or require major modifications:
- Brick homes built on a concrete slab (cannot be lifted without extensive and costly work, often not cost effective)
- Homes with significant structural damage or rot
- Properties with strict heritage restrictions
- Dwellings that do not meet engineering requirements for lifting
- Very low-quality or heavily modified structures where lifting costs are greater than knock down and rebuilding.
We can assess your home to confirm its feasibility and identify any necessary modifications before lifting. To schedule a 100% free consult and project estimate simply call us today on (07) 3130 0309 to book in a suitable time.
Should I raise and build under or add a second story?
Both options can give you more living space, but the best choice depends on your home’s structure, your block, and what you want to achieve. In Brisbane, Queenslanders and post-war timber homes are often better suited to a raise and build under, because they’re already elevated on stumps and can be lifted more cost-effectively. This option also allows you to keep the character of the home while creating a bright, functional lower level.
That said, not every home is ideal for lifting, and some houses are better suited to a second-storey extension depending on structure, access, and block layout. Adding a second storey is usually the better solution when:
- Your home is built on a concrete slab, making it difficult or costly to lift
- The block has limited space underneath or poor access
- The downstairs layout already works well, and you simply need bedrooms or living space upstairs
Because every house is different — especially across Brisbane’s mix of Queenslanders, post-war homes, and slab-on-ground builds — the right choice often becomes clear after an onsite assessment.
If you want help deciding which option suits your property, we can assess your home and provide a clear recommendation based on your home’s structure, your budget, and long-term goals. Call today on (07) 3130 0309 to schedule a 100% free onsite consultation and project estimate.
Should I raise and build under or just extend out?
It depends on your home and block. A raise and build under is ideal if you want more space without losing your backyard, have a Queenslander or post-war home suited to lifting, or need a full new level for living areas or bedrooms. It’s also a great option for small or sloped blocks where extending outward isn’t practical.
An extension outward works best on larger, flat blocks or when you only need a small amount of extra space and your home isn’t suitable for lifting (such as slab-on-ground homes).
The right choice depends on your home’s structure, land configuration, budget, needs and goals. A quick onsite assessment will confirm which option delivers the best solution based on your specific situation. Contact us today on (07) 3130 0309 to book a 100% free onsite consultation and project estimate.
What is the legal height for under the house build out?
If you’re thinking of converting the downstairs area of your Queenslander into additional bedrooms or living spaces, building underneath Queenslander homes means one of the first things you need to consider before starting the process is the legal ceiling height. Many homeowners are surprised to learn that what looks like a usable space may not actually meet the minimum height required for habitable rooms.
Under the National Construction Code (NCC), habitable areas such as bedrooms and living rooms generally require a minimum finished ceiling height of 2.4 metres. If the existing height under your home falls short, the space cannot be legally approved as a living area unless the house is raised. That’s where lifting your home becomes necessary, creating enough vertical clearance to build underneath properly and have the new spaces approved for everyday use.
What is the cost of raising a house and building underneath in Brisbane?
The cost of a raise and build under in Brisbane generally starts from $150,000–$250,000+ for a basic lift and new lower-level build, but the total price varies depending on the height of the lift, the size of the new floor area, the complexity of the engineering, the number and types of rooms and the level of finish you want for the downstairs space.
Factors influencing the final price include:
- The size of the lower level being built
- Whether you’re adding bathrooms, laundry, or kitchen facilities or just bedrooms/ living areas
- Slab vs. suspended flooring
- Structural steel requirements
- Internal layout complexity
- Slope and access to the site
- Level of finishes and insulation
- Whether major reconfiguration is required upstairs
Want a more accurate figure? Every home is different so the best way to get a clear cost estimate is through our 100% free onsite consultation. Call us today on (07) 3130 0309 to book your free consultation so we can assess your home’s structure and your goals, then provide you with a project cost estimate based on your home and your needs.
How long does a raise and build under project take?
Most raise and build under projects in Brisbane take 4 to 6 months from the start of construction, depending on the size and complexity of the home.
The full timeline typically includes:
- 2–8 weeks for design, engineering, soil tests, and approvals
- 1–2 weeks for the physical raise
- 3–5 months for the build-under construction, services installation, and internal fit-out
Larger homes, sloping blocks, major reconfigurations, or premium finishes may extend the timeframe.
How long does a house extension take?
The duration of a house extension project can vary significantly based on several factors, including the size and complexity of the extension, planning and approval processes, and the efficiency of the construction team. Here’s a general guideline on timelines:
Planning and Design Phase
1 to 2 months: This initial stage involves consultations with architects or designers, drafting preliminary designs, and making any necessary revisions to reach the final plans for the extension.
Approval Process
1 to 2 months: Obtaining Building Approval (BA) and Development Approval (DA), if required, involves submitting detailed plans to local authorities and possibly addressing any concerns they might have. This timeline can vary based on the local council’s workload and the specifics of the project.
Construction Phase
3 to 6 months (or more): The actual construction of a small to medium extension might take anywhere from three to six months. Larger or more complex extensions, such as adding a second story, could take longer, potentially 6 to 12 months.
Finishing Touches
1 to 4 weeks: After the main construction is complete, additional time is needed for finishing works, including painting, installing fixtures and fittings, and final inspections.
Total Duration
For a straightforward, small-scale extension, the entire process from design to completion might take around 6 to 9 months.
For larger, more complex projects, the total duration could extend to 12 months or more.
What kind of houses are not suitable to raise and build under?
While many Brisbane homes can be raised, some structures are generally not suitable or require major modifications:
- Brick homes built on a concrete slab (cannot be lifted without extensive and costly work, often not cost effective)
- Homes with significant structural damage or rot
- Properties with strict heritage restrictions
- Dwellings that do not meet engineering requirements for lifting
- Very low-quality or heavily modified structures where lifting costs are greater than knock down and rebuilding.
We can assess your home to confirm its feasibility and identify any necessary modifications before lifting. To schedule a 100% free consult and project estimate simply call us today on (07) 3130 0309 to book in a suitable time.
Should I raise and build under or just extend out?
It depends on your home and block. A raise and build under is ideal if you want more space without losing your backyard, have a Queenslander or post-war home suited to lifting, or need a full new level for living areas or bedrooms. It’s also a great option for small or sloped blocks where extending outward isn’t practical.
An extension outward works best on larger, flat blocks or when you only need a small amount of extra space and your home isn’t suitable for lifting (such as slab-on-ground homes).
The right choice depends on your home’s structure, land configuration, budget, needs and goals. A quick onsite assessment will confirm which option delivers the best solution based on your specific situation. Contact us today on (07) 3130 0309 to book a 100% free onsite consultation and project estimate.
What is the legal height for under the house build out?
If you’re thinking of converting the downstairs area of your Queenslander into additional bedrooms or living spaces, building underneath Queenslander homes means one of the first things you need to consider before starting the process is the legal ceiling height. Many homeowners are surprised to learn that what looks like a usable space may not actually meet the minimum height required for habitable rooms.
Under the National Construction Code (NCC), habitable areas such as bedrooms and living rooms generally require a minimum finished ceiling height of 2.4 metres. If the existing height under your home falls short, the space cannot be legally approved as a living area unless the house is raised. That’s where lifting your home becomes necessary, creating enough vertical clearance to build underneath properly and have the new spaces approved for everyday use.
Contact Us
(07) 3130 0309
