Smarter Returns From the Land You Already Own

Adding a Secondary Dwelling to Your Investment Property Delivers Dual Income and Lifts Its Market Value

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. NSW law allows granny flat owners to lease the dwelling for rental income.

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Long-Term Value

Accelerated Capital Growth

Since the Affordable Housing SEPP came into effect in 2009, the overwhelming majority of granny flat projects have been driven by investors chasing a second income stream from their holdings.

Whether your plan is to buy-and-hold or buy-and-flip, a granny flat substantially enhances what your property is worth. For long-term investors, it means collecting two separate rental payments from one title. For those looking to resell, a completed secondary dwelling attracts a wider buyer pool — particularly purchasers searching for dual-income opportunities.

Return Snapshot

What Does the Return on Investment Look Like?

A realistic overview based on a typical 2-bedroom granny flat (60m²) in Sydney. Figures vary depending on suburb, design, and site conditions.

Typical 2-bedroom granny flat projects in Sydney may range from approximately $160,000 to $230,000, depending on design, approvals, and site conditions.

Estimated rental income may range from $450 to $550 per week in Western Sydney, and around $550 to $700 per week in Inner West, Ryde, and eastern areas.

Depending on total investment and rental return, gross yield may sit at approximately 11% to 16%, with a general payback period of around 6 to 9 years before expenses.

Disclaimer: These figures are general estimates only. Rental income, site costs, approvals, and returns vary depending on suburb, design, slope, access, and market conditions. We provide a free site assessment with more project-specific guidance.

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Key Benefits

Financial Advantages at a Glance

Dual Income Stream
Collect rent from both the primary dwelling and the granny flat on the same title.
Potential for Improved Cash Flow
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.
Shift to Positive Gearing
A second rental payment can convert a negatively geared property into a positively geared one.
Accelerated Loan Repayment
Additional weekly income lets you pay down your mortgage faster and reinvest sooner.
Higher Resale Price
A completed secondary dwelling lifts the overall valuation of your property at point of sale.
Tax Depreciation Advantages
Claim depreciation on the new structure and its fittings, further improving your net return. Consult your accountant for specific entitlements.

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

Smarter Returns From the Land You Already Own

Adding a Secondary Dwelling to Your Investment Property Delivers Dual Income and Lifts Its Market Value

Accelerated Capital Growth

What Does the Return on Investment Look Like?

Want to Know Your Exact Return?

Financial Advantages at a Glance

Dual Income Stream

Potential for Improved Cash Flow

Shift to Positive Gearing

Accelerated Loan Repayment

Higher Resale Price

Tax Depreciation Advantages

Recent Granny Flat Projects Across Sydney