A1 Granny Flats

Sydney's best granny flat builders.

A full-service experience

Site Inspection, Council Approval

Design & Colour Consultation

Full Construction & Service

Why Choose A1 Granny Flats?

Sydney’s best granny flat builders with over 30 years of industry experience


  • Licensed and insured granny flat builder in Sydney

  • MBA certified and accredited

  • We give expert investment advice

  • Customised designs, layouts and plans

  • Upfront pricing and affordable granny flats’ cost

  • Various finance options available

  • Start to finish design, approvals and construction services

  • All work covered with guarantees

  • Handle turnkey projects

  • Timely completion of granny flats Sydney construction


AMAZING INCLUSIONS AND UPGRADES

Our Granny Flats Services

With us, what you see is what you get!

Building high quality, stunning granny flats is our passion, and we won’t stop until you have the granny flat of your dreams 💭

​Reach out to our friendly team today 📲

  • Complete Custom Design- We custom design granny flats Sydney from the ground up to suit all types of blocks or budgets.

  • Granny Flat Conversions- We can convert existing structures on your property into a granny flat.

  • Second Storey Additions- Add another storey to your existing home.

  • Knock Down Re-Builds – Raze an existing structure and rebuild.

  • Decks & Pergolas – Bring your yard space to life and increase its usability by adding outdoor structures like decks and pergolas.

  • Bathroom & Kitchen Renovations- These renovations can enhance the functionality of your home and increase its value.

  • Turn-Key-Contract- Start-to-end Sydney granny flat design and build contracts, so you have peace of mind.

  • Design & Council Approvals – Complete design & approval packages through CDC or DA .

  • Dual Occupancies– We can help design and build a townhouse, villa or a dual duplex that can be an excellent addition to your portfolio

Granny Flat Building Process

  1. Contact us to book your free site inspection with one of our experienced building consultants.

  2. Preparation and acceptance of your fixed price quotation.

  3. Commence your external & interior design.

  4. Lodge & obtain your approval through CDC or DA.

  5. Select your internal & external colours & materials.

  6. Signing of residential building contract.

  7. Commencement of construction on site.

Custom Granny Flat Design and Plans

We can create a design that matches your existing home, making your granny flats finish look truly seamless!

​Have an idea in mind? 💭

​Talk to our team today to bring your vision to life 📲

  • Full-scale kitchen and pantry facilities

  • Custom designed living room spaces

  • Ensuite constructions

  • Raked ceilings

  • Existing shed or garage converted to a granny flat

  • Turn-key packages at fixed prices

  • Baths with custom fixtures, bathtubs etc