Home extensions in Sydney

Plan my extension

Reimagine your home with thoughtful alterations and additions

Whether you want to open up your living space, improve flow with a new floor plan or create more room for the way your family lives, thoughtful alterations and additions can transform how your home works.


Henry May combines architectural design and construction expertise under one roof, allowing design, functionality, buildability and compliance to be considered from the outset. From planning restrictions and structural requirements to cost planning and trade coordination, we take an integrated approach to home extensions, alterations and additions across Sydney.


Whether extending a heritage terrace, reconfiguring a family residence or undertaking a major structural transformation, each project is designed as a considered continuation of the existing home.

Peace of mind at every step

One of the most challenging parts of an alteration or addition is navigating the approvals process. Planning requirements, building regulations, structural considerations and heritage constraints can all influence what is possible and how the project needs to be delivered.


Henry May brings architectural and building expertise together to help identify these requirements early and coordinate the necessary consultants, documentation and approvals. This allows design decisions to be considered alongside compliance and construction requirements from the outset.


We also maintain close oversight of cost planning, project coordination and construction, helping reduce avoidable issues as the project progresses.

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Alterations shaped around the way you live

Every home presents different opportunities. Through considered planning, existing layouts can be reworked to improve flow, create more usable space and better support the way you live. This might involve opening up living areas, extending a kitchen, adding another storey or undertaking more substantial structural reconfiguration. Each change is considered in relation to the architecture and character already there.


Download your complete guide to a stress-free build.

Download your complete guide to a stress-free build

  • Do I need council approval for alterations and additions?

    Approval requirements depend on the scope and location of the project. Larger extensions and structural changes typically require council approval or complying development certification. We manage the process on your behalf.
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  • Can I remain in my home during construction?

    This depends on the extent of the work. Some projects can be staged to allow occupancy, while larger renovations may require temporary relocation for safety and convenience.
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  • How much value can an addition add to my home?

    A well-designed addition can significantly increase both property value and functionality. The outcome depends on location, design quality, and how effectively the new space integrates with the existing home.
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  • What types of homes do you work on?

    We work on a wide range of high-end residential properties, including heritage homes, terraces, contemporary residences, and architecturally designed homes throughout Sydney.
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Create more space without compromising design

If you're considering extending or reconfiguring your home, call us or complete the enquiry form to discuss your ideas and explore the possibilities.

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