Sustainova – Professional Second Storey Addition Designer Sydney
At Sustainova, we are experienced second storey addition designers Sydney, helping homeowners expand their living space vertically with smart, safe, and fully compliant design solutions.
We specialise in double-storey extensions, upper-level additions, and structural upgrades, delivering practical designs that enhance comfort, functionality, and long-term property value.
From initial concept to council approval, our team manages your entire second storey addition project.
Comprehensive Second Storey Addition Design Services Across Sydney
As trusted second storey addition designers Sydney, we provide complete design and approval support throughout Greater Sydney.
We regularly work with:
- City of Sydney Council
- North Sydney Council
- Northern Beaches Council
- Inner West Council
- Ku-ring-gai Council
- Willoughby Council
- Parramatta Council
- Ryde Council
- Woollahra Council
All designs are prepared to meet NSW planning regulations and local council requirements from the start.
Building Design
Kitchen, Bathroom & Joinery Design
Interior Design
CDC Approval Assistance
Our Second Storey Addition Design Services
We offer a full range of second storey addition design services Sydney, including:
- Double Storey Home Extensions
- First Floor Additions & Upper-Level Expansions
- Structural Reinforcement Design
- Staircase & Access Planning
- Bedroom, Ensuite & Living Area Additions
- Drafting & Construction Documentation
- CDC & Council Approval Assistance
- Sustainable & Energy-Efficient Design
From early concepts to builder-ready plans, we ensure every project is accurate, safe, and compliant.
Why Choose Sustainova as Your Second Storey Addition Designer Sydney?
With years of industry experience, Sustainova is a trusted home extension designer Sydney homeowners rely on and a leading first floor addition designer Sydney.
When you work with us, you benefit from:
- Customised upper-level design solutions
- Detailed and council-compliant documentation
- Fast turnaround times
- Clear and honest communication
- End-to-end approval management
- Sustainable and future-ready designs
We work closely with engineers, certifiers, and builders to minimise delays and maximise build quality.
Specialists in Double Storey & Upper-Level Home Additions
We design first floor additions and second-storey extensions for:
- Growing Families
- Narrow Block Homes
- Small Land Parcels
- Heritage Property Upgrades
- Sloping Block Homes
- Multi-Generational Living
Our designs seamlessly integrate with your existing home’s architecture and structure.
Areas We Serve – Second Storey Addition Designer Sydney
We proudly serve homeowners across Greater Sydney, including:
- Inner West Sydney
- North Shore Sydney
- Eastern Suburbs Sydney
- Northern Beaches
- Mosman
- Parramatta
- Ryde
- Hornsby
- Hills District
- Inner City Sydney
- South Sydney
We also work in the Blue Mountains, Newcastle, and Wollongong.
Let’s Design Your Second Storey Addition – With Full Compliance
Planning a second storey extension? Partner with Sustainova — your professional second storey addition designer in Sydney.
We manage:
- Design
- Documentation
- Council Approvals
- Technical Requirements
So you can enjoy a smooth and stress-free building process.
About Sustainova – BDAA Accredited Designers
Sustainova is a BDAA-accredited building design practice specialising in second storey addition design Sydney.
Our expertise includes:
- Double Storey Extensions
- Upper-Level Additions
- Structural Upgrades
- Council Compliance
We are committed to delivering practical, compliant, and beautifully designed homes that stand the test of time.



