
Granny Flats & Secondary Dwellings Sydney
Custom designed and built secondary dwellings that add value to your property

Expert Granny Flat & Secondary Dwelling Builders in Sydney
Serenity Building Group specialises in designing and constructing premium granny flats and secondary dwellings throughout Sydney. Our expert team creates stylish, functional additional living spaces that maximise your property's potential while adhering to all compliance requirements and building regulations.
Whether you're looking to accommodate extended family, generate rental income, create a home office, or add value to your property, our custom-designed granny flats offer versatile solutions that blend seamlessly with your existing property. Each secondary dwelling we build combines thoughtful design, superior craftsmanship, and quality materials to create comfortable, practical spaces that stand the test of time.
As experienced granny flat builders in Sydney, we handle every aspect of your project from initial concept through council approvals to final construction. Our comprehensive understanding of NSW regulations, including the Affordable Rental Housing SEPP, ensures your secondary dwelling is fully compliant while maximising available space and functionality. We pride ourselves on delivering exceptional granny flats that exceed expectations in both aesthetics and practicality.
Our Granny Flat & Secondary Dwelling Services
Comprehensive secondary dwelling solutions tailored to your property and requirements
Custom Granny Flat Design
Personalised design services creating stylish, functional secondary dwellings that maximise space efficiency, natural light, and seamlessly complement your existing property.
Council Approval Management
Expert navigation through CDC or DA approval processes, ensuring your granny flat meets all compliance requirements under the NSW Affordable Rental Housing SEPP.
Complete Construction
End-to-end building services including site preparation, foundation work, construction, installation of fixtures and fittings, and all finishing touches.
Space-Optimised Layouts
Clever design solutions that maximise functionality within the 60 square metre limit, creating surprisingly spacious, practical, and comfortable living environments.
Services & Utilities Installation
Professional installation of all required services including electricity, plumbing, gas, and telecommunications, with options for separate metering or connection to main dwelling systems.
Investment Property Specialists
Expert guidance on creating rental-ready granny flats designed to maximise return on investment through optimal layout, durable materials, and in-demand features.
Our Granny Flat Construction Process
A streamlined, efficient approach to designing and building your secondary dwelling
Initial Consultation
We begin with an in-depth discussion about your vision, requirements, intended use, design preferences, property considerations, and budget expectations to establish the foundation of your granny flat project.
Site Assessment
Our team conducts a comprehensive site evaluation to assess soil conditions, access, drainage, existing services, boundary constraints, and other factors that may influence your granny flat's design and construction.
Design Development
Working closely with you, our designers create detailed plans for your granny flat including floor plans, elevations, 3D visualisations, material selections, and preliminary costings tailored to your specific requirements.
Council Approval
We manage the entire approval process, preparing and submitting all necessary documentation for CDC or DA approval, liaising with certifiers or council, and ensuring compliance with all regulations and requirements.
Construction Phase
Once approvals are obtained, our experienced team executes the build with precision, from site preparation and foundation work to framing, services installation, cladding, internal finishing, and final fixtures.
Quality Assurance
We conduct thorough inspections throughout the construction process and a comprehensive final inspection to ensure every aspect of your granny flat meets our exacting standards and compliance requirements.
Final Handover
Upon completion, we provide a detailed walkthrough of your new granny flat, explaining all features and systems, along with comprehensive documentation including warranties, maintenance information, and compliance certificates.
The Serenity Building Group Advantage
Why choose Serenity Building Group for your granny flat or secondary dwelling
Design Excellence
Award-winning designs that maximise space efficiency while creating stylish, liveable granny flats that complement your existing property and meet your specific requirements.
Superior Craftsmanship
Expert builders and skilled tradespeople delivering exceptional workmanship with meticulous attention to detail in every aspect of your granny flat construction.
Compliance Expertise
Comprehensive knowledge of NSW granny flat regulations, CDC and DA approval processes, ensuring your secondary dwelling is fully compliant with all requirements.
Transparent Process
Clear communication, detailed documentation, and regular progress updates throughout the entire granny flat design and construction journey.
Fixed Price Guarantee
Comprehensive fixed-price contracts providing financial certainty and peace of mind throughout your granny flat project, with no unexpected costs or surprises.
Premium Materials
Only the highest quality materials and fixtures used in our granny flats, ensuring durability, energy efficiency, and superior aesthetic appeal for years to come.
Granny Flats & Secondary Dwellings FAQ
Common questions about granny flats and secondary dwellings in Sydney
Premium Granny Flat & Secondary Dwelling Construction in Sydney
Serenity Building Group is a distinguished granny flat builder in Sydney with extensive experience creating bespoke secondary dwellings of exceptional quality. Our dedicated team combines architectural expertise, superior craftsmanship, and meticulous project management to deliver stunning granny flats throughout Sydney's most desirable suburbs.
Expert Granny Flat Design & Construction
Our granny flat design and construction service transforms underutilised backyard space into valuable living areas that enhance your property's functionality and value. Whether you're accommodating family members, creating rental income, establishing a home office, or building guest accommodation, our custom-designed granny flats offer versatile solutions that meet your specific requirements while complying with all building regulations and council requirements.
Compliant Secondary Dwellings That Maximise Value
As experienced secondary dwelling specialists, we ensure your granny flat complies with all NSW regulations including the Affordable Rental Housing SEPP. Our designs maximise the allowable 60 square metre space with clever layouts that create surprisingly spacious, functional, and attractive living environments. From site assessment and approval management through to construction and handover, we handle every aspect of your project with professionalism and attention to detail.
Quality Granny Flat Construction Throughout Sydney
We provide comprehensive granny flat construction services across the entire Sydney metropolitan area, including the Eastern Suburbs, North Shore, Northern Beaches, Inner West, Western Sydney, and the Sutherland Shire. Our local knowledge ensures your secondary dwelling complements its surroundings while meeting all council-specific requirements and building regulations applicable to your particular location.
Valuable Property Investment Solutions
Our granny flats represent excellent investment opportunities, frequently delivering rental yields between 7-15% of construction costs. Beyond immediate rental returns, a well-designed secondary dwelling typically increases your main property's value by 20-30% of the granny flat's construction cost. Our investment-focused designs incorporate features that maximise rental appeal and property value while ensuring durability, low maintenance, and energy efficiency for long-term returns.
Contact Serenity Building Group
Speak with our granny flat and secondary dwelling specialists
- Free consultation for your granny flat project
- Expert advice on design options and council requirements
- Transparent quotations with no hidden costs
- Comprehensive project management from concept to handover
Request a Consultation
Our Building Services
Explore our comprehensive array of building services we provide across Sydney
Client Testimonials
Read what happy homeowners say about their Serenity Building Group granny flat experience
Ready to Build Your Granny Flat?
Contact our secondary dwelling specialists for a consultation