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Every GrannyFlow design prioritises practical layouts, natural airflow and materials that perform well across Sydney’s climate. Whether you need a compact one-bedroom rental property or a spacious three-bedroom family home, each design is engineered around real site conditions — not just rendered to look good in a brochure.
Sydney’s Trusted Granny Flat Builder Every Region, One Standard
Greater Value for Your Investment
Our bundled packages and seasonal offers are structured to give you premium inclusions without inflating the bottom line.
Rapid Project Delivery
Construction timelines generally range from 4–5 months depending on site conditions, design complexity and external factors — so your granny flat is earning, housing or adding value sooner
Faster Path to Returns
Many of our clients build granny flats to create an additional income stream or improve overall property cash flow. While rental income varies depending on location, design and market conditions, a well-designed granny flat in the right suburb can significantly improve the financial performance of your property.
Built to High Residential Construction Standards
Every project benefits from the same rigorous construction standards and client care that underpin our reputation.
Book a Complimentary Site Inspection
You are dealing directly with a licensed NSW builder. not a lead generation website or third-party referral service.
Site inspections are typically available within 3–5 days.
No obligation. No pressure. Just clear answers about your property.
Book Your Site AssessmentFind Out What You Can Build on Your Land
Locations
Areas We Service
Tier 1
Western Sydney →
Parramatta →
Blacktown →
Liverpool →
Penrith →
Campbelltown →
Fairfield →
Tier 2
Ashfield →
Burwood →
Strathfield →
Canterbury →
Marrickville →
Leichhardt →
Tier 3
Baulkham Hills →
Castle Hill →
Kellyville →
Rouse Hill →
The Ponds →
Schofields →
Marsden Park →
Tier 4
Bankstown →
Hurstville →
Kogarah →
Sutherland →
Miranda →
Tier 5
Randwick →
Kensington →
Maroubra →
Bondi →
Granny Flat Range
Granny Flat Designs for
Every Block and Budget
Requirements
Link to Detailed Requirements
For the complete setback, site coverage and landscaping tables broken down by lot size, visit our detailed guide:
Client Feedback
Hear From Homeowners Who Have Built With Us
Discover the real experiences of those who’ve chosen our homes and how they’ve found the ideal living space for their needs
Completed Projects
Recent Granny Flat Projects Across Sydney
Each GrannyFlow project begins with a detailed understanding of the homeowner’s property, goals and constraints — from investment-focused one-bedroom builds to larger family homes across Sydney’s Western suburbs, Inner West and beyond
