Quick Answer
A dust-free attic storage room in Sydney typically costs $10,000 to $25,000. It's the most affordable way to use your roof space — structural flooring, insulation, lighting and safe stair access, without the cost or approvals of a full habitable conversion.
In This Guide
What's Included in a Storage Room
Dust-Free Storage Room
$10,000 - $25,000A clean, organised and fully accessible space for everything you'd rather not keep in the garage — seasonal items, luggage, documents and keepsakes — without exposing them to dust or heat.
The lower end of the range suits a straightforward roof with easy access and a simple ladder or drop-down stair. The upper end reflects a larger footprint, a fixed staircase, and higher insulation or finish levels.
Factors That Affect Cost
A few key variables move a storage room between the bottom and top of the range:
Floor Area & Roof Access
A larger boarded area and a manhole that needs enlarging both add labour and materials.
Type of Stair Access
A drop-down ladder is the most affordable; a fixed or electric staircase costs more but is far easier to use every day.
Insulation & Lighting
Upgraded insulation to protect belongings from heat, plus additional lighting and power points, add to the total.
Roof Structure
Trussed roofs may need minor modifications to create a clear, usable storage void, which can lift the price.
Storage Room vs Full Conversion
A storage room is a non-habitable space, which is exactly why it's so affordable. A premium utility room ($60,000–$100,000) or a DA-approved bedroom ($120,000–$200,000+) costs considerably more because it must meet building standards for living space — ceiling height, ventilation, light and safe egress.
If your only goal is to reclaim clutter and free up space downstairs, a storage room delivers the best value. If you want a room you'll live and work in, it's worth stepping up to a full conversion.
Do You Need Approval?
Keep In Mind
- Non-habitable storage often needs no DA, but rules vary by council and property.
- Structural changes to the roof or new fixed stairs may still require approval.
- You cannot advertise or use it as a bedroom — that requires a habitable conversion and approval.
We confirm exactly what applies to your home during a free inspection, so there are no surprises. See our council approval guide for more detail.
Getting an Accurate Quote
Every roof is different, so the only way to price your storage room accurately is with a quick on-site inspection. It's free and no-obligation, and we'll:
- Measure your usable roof void and head height
- Recommend the best access and stair option
- Confirm whether any approval is needed
- Provide a detailed, fixed written quote
Get Your Free Quote
Book a free on-site inspection and get an accurate quote for your attic storage room.
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