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- February 5, 2026

Home Extension Designer Eastern Suburbs Sydney
Looking for an experienced home extension designer in the Eastern Suburbs of Sydney? At Sustainova, we specialise in designing high-quality home extensions and additions that enhance space, comfort, and property value.
From coastal family homes to heritage residences, we deliver practical, stylish, and council-compliant extension solutions tailored to your lifestyle.
Professional Home Extension Design in the Eastern Suburbs
As a trusted home extension designer Eastern Suburbs Sydney, we understand local planning controls, coastal conditions, and the architectural character of the area.
Our extension services include:
- Ground floor home extensions
- First-floor additions
- Second-storey additions
- Rear and side extensions
- Open-plan living expansions
- Kitchen and living area extensions
- Internal layout redesign
- Council approval drawings
- DA and CDC documentation
Every extension is designed to integrate seamlessly with your existing home.
Building Design
Kitchen, Bathroom & Joinery Design
Interior Design
CDC Approval Assistance
Specialists in Coastal & Character Home Extensions
The Eastern Suburbs feature a diverse mix of homes, including period houses, coastal residences, and contemporary builds.
We specialise in:
- Heritage and character home extensions
- Federation and period home upgrades
- Californian bungalow extensions
- Modern coastal home additions
- Traditional homes with modern interiors
Our designs respect original architecture while introducing modern functionality and light-filled spaces.
Council Approval & DA Support in the Eastern Suburbs
Council approvals in the Eastern Suburbs can be complex due to zoning, coastal regulations, and heritage controls. As your home extension designer in Eastern Suburbs Sydney, we manage the entire approval process.
We provide:
- DA drawings for home extensions
- CDC documentation
- Council submission management
- Liaison with planners and certifiers
- Compliance with NSW planning policies
Our goal is to secure approvals efficiently and minimise project delays.

Sustainable & High-Performance Extension Design
Sustainability is central to our design philosophy.
We focus on:
- Passive solar orientation
- Cross-ventilation
- Energy-efficient layouts
- Durable, coastal-appropriate materials
- Water-efficient systems
Our extensions are designed for long-term comfort and performance.
Our Home Extension Design Process
We follow a proven, transparent process.
1. Initial Consultation
We discuss your vision, budget, and site conditions.
2. Concept Design
We develop tailored design concepts and layouts.
3. Design Development
We refine materials, finishes, and construction details.
4. Approval Documentation
We prepare and lodge DA or CDC applications.
5. Construction Support
We provide ongoing support during construction.
This process ensures clarity, efficiency, and confidence.
Why Choose Sustainova as Your Eastern Suburbs Extension Designer?
Homeowners across the Eastern Suburbs choose us for our experience and personalised service.
You’ll benefit from:
- Bespoke extension solutions
- Detailed builder-ready drawings
- Fast turnaround times
- Clear communication
- Full approval support
- Sustainable design expertise
We design with lifestyle, resale value, and durability in mind.
Start Your Home Extension Project Today
Choosing the right home extension designer in the Eastern Suburbs Sydney is key to a successful home upgrade.
At Sustainova, we are committed to delivering:
- High-quality design
- Practical solutions
- Council-compliant documentation
- Stress-free project management
Contact our team today to book your consultation.
