Luxury Home Builders in Sydney

Arncliffe Duplex Build With A Basement Garage

Arncliffe Duplex Builder Custom Built
Arncliff Basement Builder
Arncliffe Duplex Custom Builder

Arncliffe Duplexes with Basement Parking and Swimming Pool: Built By Phase Projects

This architecturally designed duplex development in Arncliffe blends modern family living with innovative engineering. Each home offers open-plan layouts, high ceilings, custom joinery, and a warm, natural material palette — delivering both style and practicality.

A key highlight is the fully excavated basement level, a complex build element that required precision planning, heavy excavation in rocky ground, and careful management of narrow site access. The result is a rare feature in duplex living: private basement garages with integrated car turntables, giving residents both convenience and space efficiency.

Above ground, each residence features a private swimming pool and a landscaped outdoor living area — creating an inviting space for family gatherings and entertaining. By moving vehicle storage underground, the design allows for larger living spaces and generous outdoor zones, enhancing both lifestyle appeal and long-term value.

Standout Features

  • Architecturally designed duplex tailored for family living
  • Fully excavated basement level engineered for stability in rocky ground
    Private basement garages for each residence
  • Car turntables for effortless manoeuvring in tight access conditions
  • Open-plan living areas with high ceilings and natural light
  • Custom joinery with warm tones and natural textures
  • Generous storage solutions throughout
  • Private swimming pool for each residence
  • Landscaped outdoor living areas for entertaining and family use
  • Seamless indoor–outdoor connection to pool and garden
  • Urban site optimisation for maximum liveable space
  • Premium finishes for a refined, low-maintenance result

Featured Project

Duplex Builders in Arncliffe, Sydney

Phase Projects delivered a stylish duplex in Arncliffe, blending modern design, smart functionality, premium craftsmanship, and attention to detail.

Designed for Real Life

Custom Duplex Living Over Three Levels

We delivered an amazing 3 level duplex complete with swimming pool and basement parking

Ready For A Quote & Consultation?

Begin your project with a complimentary quote and consultation that gives you clarity, confidence, and expert guidance. Whether you build with us or not, you’ll get a clear plan for your project. We will:

  • Answer your questions, including the ones you may not know to ask, so you can avoid costly mistakes.
  • Help refine your vision for your custom home or renovation and outline the best options to bring it to life.
  • Provide a realistic overview of building and renovation costs, showing where to prioritise investment for maximum value.
  • Explain how Phase Projects delivers custom homes and high-end renovations on time, on budget, and to the highest standard.

Your consult is with Mohamed, owner of Phase Projects, who brings over 20 years of experience delivering architecturally designed homes and renovations across Sydney’s Inner West, Eastern Suburbs and Southern Suburbs.

Get A Complimentary Quote

Receive a tailored, no-obligation quote from Mohamed within 24 hours. Prefer email? Contact us at info@phaseprojects.com.au.

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Ready to Build Your Custom Home?

0423 652 812

What Sets Us Apart

It’s not fast-tracked. It’s not left to chance. It’s designed to remove doubt, elevate quality, and deliver an experience as considered as the home itself.

No Surprises, No Stress

Far too often, homeowners are surprised and disappointed when their finished home is missing the features they discussed with their builder. With Phase Projects, we ensure that every detail is captured and included.

Deal Directly with the Us

At Phase Projects, you deal directly with Mohamed, the business owner. You’ll have his personal mobile number, receive immediate responses to your questions, and always be kept informed about your Project.

Highly Qualified tradespeople

Mohamed and his team bring hands-on expertise to every project. This hands-on background means that every aspect of your build is overseen by someone who understands the craft and pays attention to every detail.

Experience You Can Trust

With over 20 years of experience, Phase Projects has earned a reputation for reliability and quality. Our proven process, combined with a team of skilled tradespeople, ensures that you receive a first-class custom home.

Get Answers You Need—100% Free

Navigating the world of custom homes can be overwhelming. The quickest way to get answers and clarity on your custom home journey is to contact us.

No-Obligation Session

This session will be with Mohamed, the owner of Phase Projects, who will share over 20 years of experience in building custom homes across Sydney.

Client Testimonials

What Our Clients Have To Say

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Tracey Stapleton profile picture
Tracey Stapleton
31 July 2025
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We were introduced to Mohamed and his team through a friend who had completed a two-storey extension with him. From that moment, we knew he would be our builder of choice. Mohamed approaches each project as if he’s building his own home — the care, precision, and pride he takes in his work is truly exceptional. Throughout the entire process, we always felt that he was more focused on how we felt and on achieving the outcome we wanted, rather than treating it as just another project. Our only regret is not involving him from the very beginning to manage the design and approval process. Despite coming in later, the Phase team helped us finalise the administrative requirements to get our approval. As soon as we had approval, the team got straight to work. The build was completed to a high standard, and we were so impressed that we ended up expanding the scope along the way. Mohamed and his team delivered a full extension, including a new attic, kitchen, additional bedroom, bathroom, laundry, and a spacious family room at the rear — along with a new garage and concrete driveway. The finishes were fantastic, and we were genuinely pleased with the constant communication throughout the build. We always felt informed and involved, which made the entire experience even more reassuring. We’re now planning to renovate the front of our home early next year, and there’s no question — we’ll be going with Phase Projects again. The aftercare has also been exceptional. While others share horror stories about their building experience, ours was a dream. We honestly can’t relate.
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Jenna Palevski profile picture
Jenna Palevski
29 July 2025
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I can only say wonderful things about our experience with Phase! They are passionate, patient, knowledgeable and incredibly dedicated to their work and their clients. We had about an 18 month journey with Mohamed and team from the design process through to the completion of our beautiful custom build. We could not be happier with their service and their team and would highly recommend them when building your custom home.
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Sinead Burchell
22 August 2024
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Building our new home was a significant journey, and we extensively researched various builders, including some of the larger project home builders. Ultimately, we chose a boutique builder that would be personally involved on-site and deeply familiar with every aspect of our project. We were not interested in a production line approach. One of the standout benefits was the ease of communication. We could call or email anytime and receive prompt responses. Additionally, we had the freedom to choose materials beyond a predetermined range from their warehosue. Even their suppliers were accommodating; if we didn’t find what we liked, we could suggest our preferred suppliers. This flexibility was invaluable. We wanted to be hands-on with our interior selections and layout without incurring excessive costs for interior designers. An architectural interior designer assisted us with layouts and drawings, but we managed the material selection ourselves. This option, provided by Phase, not being limited to a few choices, was particularly appealing. The open line of communication and transparency were consistent throughout the process. We had regular on-site meetings, which kept us informed and involved. We are extremely happy with the finished product. The handover was seamless, and we couldn’t be more satisfied with our new home.
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Chris Morrison profile picture
Chris Morrison
13 August 2024
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I built my dream home with Phase Projects and Mohamed was excellent throughout the entire process, always available and ready and able to resolve any issues that inevitably come up with the build of a high end property. Mohamed ensured that the build was done to the highest standard and I cannot recommend Phase Projects highly enough.
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Zaynab Saab profile picture
Zaynab Saab
6 August 2024
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We had a seamless experience with this experienced builder. A known industry professional who bought our dream home to life. Mohammed and his team were very respectful of our home and our space and made every effort to deliver on all their promises. His knowledge and networking was admirable and we always felt at ease knowing we were in such experienced hands. We were building during covid lockdown and had multiple other unavoidable hurdles along the way. Our builder navigated us through it all with professionalism and class. Our home is everything we ever dreamed of and more. We couldn’t be happier with the whole experience and Phase projects delivered exceptionally. Highly recommended!
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Hanade Beydoun profile picture
Hanade Beydoun
6 August 2024
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We highly recommend this builder. Phase were professional, on-time and reliable. They did a great job and delivered on their promise. We are very happy with their work.
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Jim Krakas profile picture
Jim Krakas
25 July 2024
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Working with Phase was a seamless experience. Their consistent communication made all the difference, guiding and supporting us through every step of our custom home process. They provided assurance and expertise, making the entire journey enjoyable. It was a pleasure to work with them.
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Zak Prime profile picture
Zak Prime
25 July 2024
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I reached out to Phase based on several trusted recommendations from industry trades. From our first meeting, I was immediately impressed by Mohamed's organisation, knowledge, and passion for his work. Throughout my project, Phase demonstrated exceptional site management, attention to detail, and expertise in design, construction, and trades. Phase's dedication to the build and commitment to scheduling is truly professional. Mohamed has a remarkable ability to troubleshoot and address any issues or deficiencies that arise. Phase prioritises customer service and client satisfaction, both during and after project completion. I highly recommend their quality workmanship.
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Zoe profile picture
Zoe
24 July 2024
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We had the very best experience with Phase. From the first meeting, we knew we were in good hands. This team truly cares about what they do and takes pride in their work. We hired Phase to do our renovations and first-floor extension, a project many builders before them said couldn’t be done due to the timber-clad structure downstairs and concerns about the footing's strength. However, with the help of Mohamed and his design team, they made it possible, and we got our DA approval seamlessly. The builder and contractors were all lovely and very respectful of our space. They were honest and incredibly helpful when we had questions about fixtures, fittings, and materials. The process was completely stress-free for us, though we imagine it might not have been for them at times, but you wouldn't know it from their professionalism! Nothing was ever too hard for them, and they were very easy to talk to and deal with We couldn’t be happier with the end result, and the great energy they brought to our house lives on in our walls. We are very grateful.
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Jafz profile picture
Jafz
22 July 2024
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We were incredibly pleased with the entire experience working with Mohamed and his team. Their personable and relatable nature made the process smooth and enjoyable. The team completed the work within the promised timeframe, which was impressive and greatly appreciated. What stood out the most was their extensive knowledge and professionalism. They consistently demonstrated a high level of expertise and integrity, ensuring that every detail of our new home met our expectations. The final result exceeded our hopes, and we are absolutely delighted with our new home. We wholeheartedly recommend them to anyone considering any building work. Their commitment to customer satisfaction and the quality of their work is truly exceptional.
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Duplex with Basement Garage FAQ’s

Got another question? Please reach out to us!
After 20 years of building homes in Sydney, we have built all sorts of homes and dealt with all planning, design and approval scenarios!

This project goes well beyond a typical side by side duplex. Each residence includes a fully excavated basement garage, private swimming pool and landscaped outdoor living area. By placing parking underground, the design creates larger living zones above ground and allows both homes to feel more like standalone residences rather than a conventional duplex.

Car turntables allow vehicles to enter and exit the basement safely without complex reversing, which is especially important on narrow sites. They maximise usability of the garage space and make day to day access far more practical for residents.

The basement was a strategic design decision. On a tight urban site like this, underground parking frees up valuable land above ground for living space, outdoor areas and pools. It also improves privacy, reduces street dominance by garages and significantly elevates the overall quality and value of the development

Yes. Each residence has its own private basement garage, storage and direct internal access, ensuring privacy and independence for both households. The layout was carefully planned so neither home feels secondary.

The site required excavation through substantial rock, along with careful structural engineering and staged access planning due to the narrow street frontage. This level of work requires experience with basements, coordination between engineers and builders, and a clear construction sequence to ensure stability and compliance throughout the build.

In suburbs like Arncliffe, lifestyle features such as pools strongly influence buyer demand and long term value. Including a pool for each residence positions the homes at the premium end of the market and appeals to buyers looking for a complete lifestyle offering rather than a compromise.

We build right across Sydney, but much of our work is concentrated in the St Georges region, Inner West, Eastern Suburbs and down towards the Sutherland Shire. See our projects to see the builds in different suburbs

Privacy was a key consideration. The basement separation, thoughtful layout, acoustic treatments, landscaping and positioning of outdoor areas all help ensure each home functions independently, with minimal noise transfer and clear separation of spaces.

Yes, when designed and engineered correctly. Basements are particularly effective on narrow or constrained sites, allowing additional space without exceeding height limits. This project demonstrates how complex sites can be transformed into high quality outcomes.

Yes. Phase Projects specialises in complex builds including basements, narrow sites and multi level homes across Sydney. Each site is assessed individually, but this project reflects the level of engineering, planning and execution we bring to challenging duplex developments.