Granny flats & renovations, built properly.
Specialist granny flat builders with 26 designs from 25 to 60 m² — design and approvals included — plus builder-led renovations across Sydney, Wollongong, the Central Coast, Newcastle and regional NSW.
Granny flats, from design and approval to handover
Extra rental income, room for family or a home office — a J&N granny flat adds space and value to your property, with design, approvals and HBCF insurance included in one fixed price.
- 26 designs from 25 to 60 m² — studios to three bedrooms
- Design, engineering, BASIX and CDC approval included
- Separate electricity meter and split-system air conditioning
- Fixed price, with progress payments by build stage
- Building across Sydney and regional NSW
Our expertise
Builder-led granny flat, renovation and improvement services designed to transform homes, improve functionality and add lasting value.
Granny Flats
Studios to three-bedroom granny flats, with design and approvals included in a fixed price.
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Home Renovations
Full-scale renovations conceived around how you live — reimagining flow, function and finish without compromise.
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Kitchen Renovations
Bespoke kitchens with refined layouts, premium finishes and an eye for detail that elevates the everyday.
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Bathroom Renovations
Clean lines, curated materials and considered design — bathrooms built to last.
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Outdoor Living
Decks, pergolas and entertaining areas designed for year-round use and long-term durability.
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Structural Improvements
Layout changes, carpentry and structural works led by a licensed builder.
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The J&N difference
We don’t just build — we craft. Every project reflects our commitment to exceptional workmanship, transparent communication and a result that stands apart.
Transparent Pricing
Clear, detailed and fixed quotes. You know exactly what you’re investing before a single tool is lifted.
Your Vision, Our Standard
We take the time to understand what you want — then exceed it, with clear communication at every stage.
Quality Workmanship
Every finish we deliver is one we’re proud to put our name to: precision craftsmanship and premium materials.
Builder-Led Experience
Hands-on building and carpentry expertise at the helm — guided by experience, not managed from a distance.
A clear process, start to finish
Consultation
We meet on site, listen to your goals and talk through ideas, budget and timing.
Fixed Quote
A clear, itemised quote and scope — no vague allowances, no surprises.
Build
Your licensed builder manages trades, quality and programme, keeping you updated throughout.
Handover
A thorough walkthrough, a clean site and warranty protection for peace of mind.
Transparent, fixed-price packages
“Nick and the team were great to work with. They understood what we wanted, explained the process clearly and delivered a quality finish. The project was completed professionally and the space looks much better.”Tom & Mandy LewisHomeowners
Trusted brands & suppliers
We build with established brands and local suppliers we know and trust, so every finish is backed by quality products.
Not just Sydney
We build granny flats and renovations right across Greater Sydney and regional NSW. Outside the areas listed? Ask us — we travel for the right project.
- Greater SydneyAll suburbs, metro to outer Sydney
- Central CoastGosford, Wyong & surrounds
- Newcastle & HunterNewcastle, Lake Macquarie & Maitland
- Wollongong & IllawarraWollongong, Shellharbour & Kiama
- Goulburn & Southern HighlandsGoulburn, Bowral & Mittagong
- Orange & BathurstCentral Tablelands
- DubboCentral West & Orana
- And surrounding regionsJust ask — we’ll let you know
Ready to transform your home?
Book a free on-site consultation and receive a clear, detailed, fixed quote.