Granny Flats

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Custom Granny Flats Designed for Living

Create versatile, self-contained living spaces with expertly built granny flats tailored to your property, lifestyle, and investment goals, delivering comfort, privacy, and long-term value without compromising your existing home’s layout or outdoor space.

STH Projects offers complete design and construction solutions, managing everything from planning and approvals to final finishes, ensuring seamless project delivery across Sydney, the Hawkesbury, the Hills Shire, and the North Shore up to Turramurra.

Whether you need accommodation for extended family, a private guest retreat, or a smart rental investment, our granny flats are designed for functionality and durability. We carefully assess your block, council requirements, and lifestyle needs to create a compliant, attractive dwelling that complements your main residence. With quality workmanship and thoughtful layouts, we deliver spaces that feel like home from the moment you step inside.

Smart Living Solutions

Licensed Professionals

Our certified and insured team ensures every project is completed safely, responsibly, and to industry standards.

Quality Guarantee

We prioritise excellence, using superior materials and craftsmanship to deliver homes built to last with precision.

Builders Assurance

Enjoy peace of mind with our comprehensive builders' warranty, covering workmanship and structural quality for complete confidence.

Custom Upgrads

Enhance your home with tailored upgrades that combine style, functionality, and lasting value to suit your lifestyle perfectly.

Our Proven Build Process

From initial consultation to final handover, we deliver a structured, transparent approach that ensures clarity, efficiency, and confidence throughout your granny flat project.

Site Assessment and Planning

Concept Design Development

Council Approvals Management

Construction And Quality Control

Final Inspection and Handover

FAQ's

Frequently Asked Questions
Do you service my area?
Yes, we build granny flats across Sydney, the Hawkesbury, the Hills Shire, and the North Shore up to Turramurra.
Absolutely, we prepare documentation and handle approval processes to simplify compliance requirements for homeowners.
Yes, every granny flat is custom designed to suit your property, lifestyle, and budget.
Timeframes vary, but most granny flats are completed efficiently following approvals and planning stages.
Yes, our designs meet compliance standards, making them ideal for rental income opportunities.

Our Services