Have Absolute Confidence with JML

Family Owned & Operated in SA

Over 20 years’ of serving Adelaide and surrounding regions – JML boasts unparalleled experience in the local construction market.

Upfront & Friendly Service

We guarantee to finalise your project only when you are 100% satisfied. We are here to construct a space true to your dream, and will communicate with you every step of the way.

Personalised Advice

We take the time to do our homework to understand each individual project, and provide tailored, educated advice based on your vision.

In a Class of Our Own

Each stage of project development is completed with you in mind – your vision, your needs, and your budget. Let JML work with you to construct your ideal space.


Our reputation is second to none – our extensive experience in Adelaide cements our position as industry leaders.

Upfront & Transparent

We avoid unforseen variations with diligence

You can place complete trust in JML to provide you with an accurate quote from the very beginning. We undertake preliminary site and engineering inspections to ensure there are no costly surprises, including testing your soil conditions, so you know exactly what to expect before entering into a contractual agreement with us. JML also complete a full 3 stage architectural design for you to review and approve in order to minimise any on site changes.

As members of the Housing Industry Association (HIA) you can rest assured that the quality of JML’s service meets national association standards. We guarantee to go above and beyond to provide you with a finished product that exceeds your every expectation.

Communication & Customer Service

All construction companies boast about their high level of customer service, but few actually walk the walk. JML Developments assign you with a dedicated customer service consultant to communicate with you throughout every stage, from the first design, all the way to completion and sign off. You will also be allocated a site supervisor who will be contactable 7 days a week to answer any queries – they will even provide you with weekly progress reports and updates on building schedules.

Owners Mark and Jamie Lees take pride in the standard of JML’s work. They will be directly involved with each and every project, overseeing progress and performance to ensure your build is finished to the highest standard in a timely manner.

How We Get You What You Want

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    Initial consultation

    (An initial meet and greet between JML and the client. JML will listen to the clients plans and dreams and offer advice and feedback. The purpose of this is for JML to gather information to put together a cost estimate free of charge

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    Estimate of costs based on initial consultation

    (An estimate of costs based on both site conditions and client requirements. Importance of an accurate estimate at this stage is key for JML as transparency of budget is at the forefront of the mind throughout the process)

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    Initial concept meeting with architect

    (Initial meeting with architect to design a concept plan to work within both the budget and the customer needs, requirements and desires)

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    Planning drawings stage

    (Once the customer is completely satisfied with the concept plans. Then JML will adapt these plans into a planning package for council submission)

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    Customer selection stage

    (During council planning submission the client will complete a selection process. This is where the client can be creative, selecting the desired finishing aspects. This process is completed at this stage to create your fixed price upfront)

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    Preliminary engineering

    (This is to get more of an understanding of what we are working with. This is part of the due diligence JML shows to ensure a fixed price is obtained as soon as practical and no hidden nasties can be found during the construction process)

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    Working drawings

    (As we get closer to planning approval JML will develop a full set of construction drawings for the client to sign off on, this part is key to producing the fixed price contract. This also gives the client the exciting chance to see how their dream is going to look and be built!)

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    Final engineering and construction documents

    (Final engineering, timber framing, energy efficiency can all be finalised now ready to be sent to the private certifier for final approval)

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    Submission to private certifier for final approvals

    (JML lodged with private certifier for final council submission to gain full development approval) Final pricing and contract reviews
    (A final fixed price is produced based on all information required being complete)

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    Full development approval and starting date booked

    Build clients dream home
    (Build the dream home based on the professional design process to ensure a quality build in a timely matter and to a strict budget)

It starts and ends with great communication



Your home is the biggest investment you will make in your lifetime, so it is only appropriate for you to maintain its aesthetic appeal and value for decades to come. JML go above and beyond all industry standards, turning ordinary spaces into innovative works of art…



If you are experiencing space inefficiencies or have simply grown to dislike the appearance of your home, it may be time to consider extending. JML’s team of construction specialists can help turn your dream space into a reality, while ensuring your extension is innovative, practical, and true to your vision…

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Get in touch to find out how we can help you. Call today

Phone: (08) 8272 8848