Building across the Hills
Second-storey additions, extensions and renovations for homes in Castle Hill, Kellyville, Baulkham Hills and Cherrybrook.
The Hills build
Panadium Homes is a family-owned NSW builder that has been renovating, extending and building homes across the Hills District since 1996, working in The Hills Shire and western Hornsby council areas. A Hills project usually takes one of three forms — a second storey above the existing house, an extension at ground level, or a full rebuild on the block you already own — and which one fits depends on the structure, the block and the council controls. The rest of the home build follows from that choice.
Completed work, Cherrybrook
A single-storey home taken to two full storeys: roof removed, the structure below reinforced, a new upper floor and roof built, with consent in place before construction started.
Before After Second storey, extension or rebuild
Going up can keep more of the backyard where the existing structure can carry a storey; going out can work where the block has room to spare and the house is sound. We assess both against your block and the council controls, then quote the option that fits.
We test the scope against council controls before anything is priced. The Cherrybrook second storey was consented before construction started, and every build runs start to finish under Panadium’s Licence No. 270181C, through to handover.
Start with the home design you want — which rooms, how big, what finish level — and the constraints around it: budget, timing, and how long you can live around the work. A brief that captures the intended result clearly is what lets us price it accurately.
Cherrybrook construction
The Cherrybrook project record shows the sequence clearly: the original roof was removed, the ground floor was reinforced, then the upper floor and new roof were built over the existing home.
Review the existing structure, access and the space you want to add. Bring any plans and a list of the rooms that matter most.
Identify relevant planning controls and the information needed to assess the proposed work.
Confirm the option, inclusions and selections to be quoted, with allowances and exclusions clearly described.
Plan the work around access, deliveries and the agreed scope, through to the completed rooms.
Where we build
NSW Licensed Builder · HBCF Cover · icare · Tender-Prequalified · Master Builders · HIA Member · $20M Public Liability
Continue exploring
Renovations, extensions and full rebuilds across the Hills, plus the neighbouring areas Panadium also builds in.
Compare ground-level extensions and additions above the existing home
Update the home you already have, from one room to the whole house
Add bedrooms and living space above the existing home
Build fresh on your own block when extending isn’t the answer
Parramatta, Penrith and Campbelltown
From Lindfield to Mosman
Carlingford and the Parramatta River suburbs
Before you call
Yes. We work throughout the Hills — from Castle Hill through West Pennant Hills, Cherrybrook, Rouse Hill, Bella Vista, Glenhaven and Dural — as well as across our regular Sydney working area beyond the Hills Shire.
It depends on the block and the existing house. A second storey keeps the backyard and suits a house whose walls and slab can carry the extra load — at Cherrybrook that meant removing the roof and reinforcing the structure before the new upper floor went on. A ground-level extension suits blocks with room to spare. We assess both and quote the option that fits your block.
Sometimes — it depends on the project. A staged ground-level extension can leave part of the house usable; taking the roof off for a second storey is a different proposition. We plan the staging with you, and where staying isn’t realistic we say so early so you can arrange to live elsewhere for that stage.
When the existing house is in poor condition, or when the block and its controls allow a fresh home design that better suits how you want to live. When the structure is sound, an extension or second storey usually makes more sense. We’ll give you an honest read on your block either way.
There’s no honest single figure — access, slope, the state of the existing structure and the finish level all move it. We quote your specific project as a fixed price once the scope and approvals are settled, never a starting-from estimate.
Free fixed-price quote
Send a few details so the Panadium team can review your block, your options and the scope needed for a quote.
Prefer to talk it through? (02) 9433 1212