Quick Answer
Attic conversions in Sydney typically range from $10,000 for basic storage to $200,000+ for full DA-approved bedrooms with bathrooms. Most homeowners invest between $60,000-$100,000 for premium utility rooms.
In This Guide
Cost Breakdown by Conversion Type
Dust-Free Storage Room
$10,000 - $25,000The most affordable option, ideal for homeowners who need organised, accessible storage without the complexity of a living space.
Premium Utility Room
A fully finished multi-purpose room suitable for home offices, playrooms, creative studios, or guest retreats. This is our most popular option.
DA-Approved Bedroom/Study
$120,000 - $200,000+Full attic conversions that add official bedrooms to your property. May include roof modifications, dormer windows, and ensuite bathrooms.
Factors That Affect Cost
Every attic conversion is unique. Here are the main factors that influence your final cost:
Roof Structure & Pitch
Steeper roofs offer more headroom but may require structural modifications. Trussed roofs often need more extensive work than traditional rafters.
Access Location
Where the stairs go affects cost. Internal stairs through a wardrobe or hallway are typically easier than creating new openings.
Services Required
Adding plumbing for a bathroom significantly increases cost. Electrical work, air conditioning, and data cabling add to the final price.
Finish Level
Premium materials, custom joinery, and high-end skylights will increase your investment but add long-term value.
Return on Investment
Attic conversions typically offer excellent ROI compared to other home improvements. Adding usable floor space - especially a DA-approved bedroom - can significantly increase property value.
In Sydney's competitive property market, an extra bedroom can add $50,000-$150,000+ to your home's value, often exceeding the conversion cost. Even storage conversions add value by improving functionality and appeal to buyers.
Getting an Accurate Quote
The only way to get an accurate quote for your specific project is with an on-site inspection. We offer free, no-obligation inspections where we'll:
- Assess your roof structure and ceiling height
- Discuss your goals and requirements
- Identify the best access location
- Explain approval requirements
- Provide a detailed written quote
Get Your Free Quote
Book a free on-site inspection and get an accurate quote for your attic conversion project.