Modern white two-story house with arched windows, wooden accents, and a metal gate, surrounded by lush green landscaping and trees under a partly cloudy sky.

Sydney-based Architectural and Custom Homes Builder —Delivered with Clarity and Control.

Boutique builder specialising in high-end homes and duplex projects, built through clear process and disciplined execution.

Book A FREE Consultation

At Caton Constructions, we pride ourselves on clear and honest communication, accountability at every turn, and an unwavering commitment to high-quality craftsmanship. We understand that undertaking a residential construction project is a significant journey, and whether it’s your dream home or a dual occupancy development, we’re here to make it as seamless as possible.

If you are looking for all the systems and structure of a big builder, but with the passion and authenticity of a small builder then contact us now to discuss your project.

CONTACT US NOW
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Lachlan McDonald

Director

Meet the Director

I’m Lachlan, the proud owner of Caton Constructions, a boutique and trustworthy building company specialising in high-end residential projects, custom homes and dual occupancies.

My journey into the world of building began long before I ever picked up a hammer. My parents renovated many of our family homes, and I spent countless hours immersed in the world of construction as a child, whether it was crafting creations with Lego or “helping” my parents renovate with my dad’s tools. This passion led me to undertake work experience with a local builder in Year 10, which confirmed that the construction industry was the path for me.

In my construction career spanning over 20 years, I’ve had the privilege of managing luxury residential projects valued between $2m and $25m, earning recognition through 10 state and national awards along the way. My motivation has always been to do what I love, and that’s why I established Caton Constructions — to deliver true luxury and quality to the residential market.

I believe that relationships are at the heart of what we do. I’m not just here to build houses; I’m here to build trust and create lasting connections with my clients and the broader community. When you choose to work with us, you’re not just hiring a builder; you’re partnering with a team that genuinely cares about your vision and your experience.

So, if you’re ready to embark on the exciting journey of building your luxury home in the Sutherland Shire, I’d love to hear from you. Let’s create something extraordinary together.

Contact Lachlan Today
Meet the Team
Caton Constructions guarantee outlining director involvement, quality control, and clear communication
Work Directly with lachlan
  • Construction site of a residential building with green framing structure, workers, and construction equipment in a neighborhood with various houses and trees.
  • Aerial view of established residential housing with detached homes and surrounding streets
  • Aerial view of residential site preparation with excavation and early construction works
  • Architectural design render of a duplex residential project
  • nterior construction progress showing arched architectural detailing and plastered walls
  • Aerial view of residential construction showing scaffolded structure and roofing installation in progress
  • Scaffolded façade under construction showing arched openings and external wall installation
  • Interior room under construction showing curved wall detailing, plastered surfaces, and electrical rough-in
  • Aerial view of a building under construction with scaffolding surrounding the structure and a white metal roof, with trees and neighboring houses in the background.
VIEW OUR RECENT WORKS

Services

Caton Constructions specialises in new home builds and duplex or dual occupancy projects across Sydney.

Our work focuses on well-planned residential construction, supported by clear communication and consistent oversight throughout delivery.

We can also coordinate the complete development process from inception to completion, no matter what stage you are at. This includes pre-construction and approvals (Pre-Development Application, Development Application, Complying Development and Construction Certificate), as well as construction and handover.

We do not take on small standalone renovation projects such as kitchens or bathrooms, and we are happy to recommend trusted specialists for that type of work.

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New Home Builds

We deliver custom new homes in Sydney for clients who value clarity, quality, and a well-managed build. 
From early planning through to completion, your home is delivered through clear processes that keep scope, quality, and communication aligned. 

Discuss your new home project
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Duplex / Dual Occupancies

We deliver well-planned duplex projects that balance build practicality, compliance, and long-term value. 
Projects are managed with the same care and oversight as our custom homes. 

Discuss Your Duplex Project

Why Choose Caton?

At Caton, passion and authenticity are at the heart of everything we do. We are dedicated to creating a seamless, stress-free experience for our clients while delivering exceptional results.

With a meticulous approach to quality and best practice techniques, we ensure every project meets the highest standards, combining expert craftmanship, attention to detail and lasting value.

Whether you need a custom build or support throughout the design and approvals process, we work with you to tailor a solution that fits your budget and vision.

Learn more
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What Our Clients Say

  • "I was so impressed by Caton Construction’s ability to handle our new home build project from start to finish. Not only did he explain every part of the process in simple terms, but he also made sure the project was completed with attention to detail. The quality of the construction is fantastic, and I’m thrilled with the final result. The communication was always open, transparent, and consistent, and the project stayed within budget, which is rare in this industry. I couldn’t be happier with how everything turned out".

    Mark B - Barden Ridge

  • “We recently had an extension built, and from the beginning, Lachy was fantastic! He explained construction terms in language that made me and my wife feel comfortable to make choices we fully understood. The quality of the build is great, it looks fantastic and we can see the attention to detail in the final result. Everything was kept tidy during the build and it finished ahead of schedule and within budget too. I would definitely recommend him to anyone.”

    Daniel T - Gymea

  • “Working on our extension with Lachlan from Caton Constructions was an absolute blast! He made the whole process feel like a team effort, walking us through every step and always making sure we were on the same page. The quality of his work is top-notch, and the attention to detail is something you rarely see. He stuck to the timeline and budget without a hitch—no surprises here! On top of that, he's super approachable and just a great person to work with. We couldn’t be happier with the final result and would highly recommend him to anyone in Southern Sydney!.”

    Aaron S

  • I’ve worked with builders before, but none have been as approachable and transparent as Lachlan. He always made time for me if I had questions or concerns, and prioritized keeping me informed at each stage. Lachlan went above and beyond in the design stage, making sure I was happy with each choice and suggesting products that tied in with my coastal theme. The final product is stunning, with the highest quality finishes, and best of all it stayed within budget. I highly recommend using Caton for any projects, and will certainly be using them again for our next build.

    Hannah M - Engadine

OUR VALUES

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Integrity value icon representing careful decision-making in the long-term interest of the build
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Our Mission

To deliver new homes and duplex projects through a clear process, careful planning, and consistent oversight, ensuring our clients feel informed, engaged, and confident their project will be completed on time and on budget. 

Our Vision

To be a trusted boutique builder known for doing things properly, with clear communication, accountability, and well-managed residential projects. 

10 Questions Every Sydney Homeowner Should Ask Before Choosing a Builder

A brochure titled '10 Questions Every Sydney Homeowner Should Ask Before Choosing a Builder' created by Lachlan McDonald, with a cover photo of aerial view of houses and the logo 'Caton.'

Building can come with a lot of uncertainty around costs, timelines, communication, and responsibility. This free guide is designed to help take some of that uncertainty out of the early stages by outlining the key questions worth asking before choosing a builder.

Inside, you’ll find practical guidance to help you compare builders properly, understand how decisions are managed, and feel more confident moving forward — without rushing or feeling overwhelmed.