Granny Flats
Purposeful 1–3 bedroom designs for family, downsizing or additional income.
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Sydney builder · Established 2014
Better spaces.
Built for real life.
From studios and granny flats to house-and-granny-flat designs, new homes and duplexes, we manage the journey from early planning to handover.
Licensed NSW builder Design & approvals support Clear, practical guidance
Meet Proton Homes
Building better spaces
for real life.
See how our experienced Sydney team supports your project—from the first site review and design through approvals, construction and handover.
Start your building journeyWhat we build
A home for every
stage of life.
Thoughtful residential building for Sydney families and property owners—supported by practical design, approval knowledge and experienced construction management.
House & Granny Flat
A principal home and attached secondary dwelling planned together for flexible living.
Learn moreStudios
Efficient standalone spaces designed for modern work, living and guest use.
Learn moreNew Homes
Single and double-storey homes tailored to your block, lifestyle and budget.
Learn moreDuplexes
Considered dual-occupancy solutions that balance liveability and return.
Learn moreFind your home
Designed around the way
you want to live.
Granny FlatArtist impression
Granny FlatArtist impression
Completed HomeCompleted by Proton HomesLansvale
A completed Proton Homes granny flat in South-West Sydney
60 m² 2 1
Discuss a similar project Proton Homes designs
Two smart ways to live
within 60 square metres.
Choose a compact plan or a wider linear layout. Both can be refined to suit your site, access, orientation and preferred finishes.
Compact layout
Decius 560
- Floor area
- 59.99 m²
- Overall size
- 6.22 × 9.65 m
- Configuration
- 2 bed · 1 bath
Shorter frontage with bedrooms grouped privately away from the kitchen and living zone.
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Wide linear layout
Fabius 660
- Design series
- 60 Series
- Overall size
- 13.65 × 5.10 m
- Configuration
- 2 bed · 1 bath
A bright central living zone with a bedroom at each end for added separation and privacy.
Request site assessmentPlans are indicative and may be mirrored or adjusted. Final design, dimensions and approval pathway depend on site conditions and applicable planning requirements.
The 60 Series
More designs.
More ways to make it yours.
Explore 11 real Proton Homes layouts created for different block shapes and household needs. Every plan can be reviewed for site-specific refinement.
About our granny flats
Indicative floor planAppius
View exterior & interior
Indicative floor planCladius
View exterior & interiorIndicative floor planDecius
View exterior & interiorIndicative floor planFabius
View exterior & interior
Indicative floor planHilaria
View exterior & interior
Indicative floor planLivia
View exterior & interior
Indicative floor planLucius
View exterior & interior
Indicative floor planPorcia
View exterior & interior
Indicative floor planVitus
View exterior & interior
Indicative floor planLucia
View exterior & interior
Indicative floor planAlbus
View exterior & interiorBuilt by Proton Homes
A closer look at
our Lansvale home.
This completed granny flat brings together a practical brick exterior and a bright, functional kitchen—built for comfortable everyday living.
Discuss a similar project
Your building journey
Clear steps.
One experienced team.
We make the process easier to understand and keep decisions moving from the first site conversation through to handover.
- 01
Site & needs review
We understand your block, goals, budget and preferred design.
- 02
Design & proposal
We shape the right solution and provide a clear project proposal.
- 03
Approvals & selections
Our team coordinates documentation, approvals and your finishes.
- 04
Construction & handover
Your home is managed through construction, quality checks and completion.
10+
years building
across Sydney
Why Proton Homes
Experienced enough to deliver.
Personal enough to listen.
Proton Homes is a Sydney-based residential builder established in 2014. Our hands-on approach brings design, compliance and construction knowledge together, so clients receive practical answers and a home built around what matters to them.
Direct, responsive communication Flexible designs for real sites End-to-end project coordination
Frequently asked questions
Useful answers
before you begin.
Every property is different. These answers explain our usual starting point; a site review confirms what applies to your project.
01Can a Proton Homes design be changed or mirrored?+
Yes. Our plans can be reviewed for mirroring and practical refinements to better suit access, orientation, privacy and the way you want to live. Final changes remain subject to site conditions and approval requirements.
02Do you help with planning and approvals?+
Yes. We help coordinate the design and approval pathway so you understand what information is needed and what happens next. The appropriate pathway depends on your property and the proposed work.
03How do I know whether a granny flat will fit on my property?+
Start with a site assessment. We review the property, access, available space, your preferred design and the key site constraints before preparing a formal proposal.
04Where does Proton Homes build?+
We focus on residential projects across Greater Sydney, including granny flats, studios, new homes and duplexes.
05When will I receive a firm price?+
After the initial consultation and site qualification, we adapt the concept to your property and prepare a clear formal quotation for the agreed scope.
Free site assessment
Could your property
work harder for you?
Tell us your suburb, preferred home type and what you want to achieve. Our team will explain the most practical next step.