1-Bedroom vs 2-Bedroom Granny Flat Floor Plans: Which Is Right for You?

Choosing between a 1-bedroom and 2-bedroom granny flat floor plan is one of the most important decisions you’ll make when planning your build. Each option offers unique benefits depending on your lifestyle, budget, and long-term goals. Whether you’re considering a compact retreat, a rental investment, or accommodation for family, understanding the differences will help you choose the right design with confidence.

Below, we explore the pros, cons, and ideal scenarios for both 1-bedroom and 2-bedroom granny flat floor plans.

Why Your Floor Plan Choice Matters

Your granny flat’s layout directly influences:

• Functionality
• Privacy
• Liveability
• Future rental potential
• Overall property value

By comparing 1-bedroom and 2-bedroom designs, you can better align your build with your block size, budget, and intended use.

1-Bedroom Granny Flat Floor Plans

Perfect for smaller blocks or those seeking simplicity, 1-bedroom designs maximise efficiency without sacrificing comfort.

Best For:

• Singles or couples
• Short-term rental opportunities (Airbnb-style stays)
• Home offices or studio-style retreats
• Blocks under 350m²

Advantages:

• More affordable: Lower construction cost and faster build times.
• Space-efficient: Ideal for narrow or compact blocks.
• Low maintenance: Less space to clean and maintain.

Limitations:

• Limited privacy if two people work or live in the space.
• Lower long-term rental income compared to 2-bedroom layouts.
• Not ideal for multi-generational living or growing families.

2-Bedroom Granny Flat Floor Plans

Offering greater flexibility and privacy, 2-bedroom granny flats are among the most popular designs in Australia.

Best For:

• Small families
• Elderly parents needing long-term accommodation
• Higher-yield rental properties
• Resale value and long-term investment
• Blocks 350m² and larger

Advantages:

• Extra room for flexibility: Second bedroom can serve as a guest room, office, or storage space.
• Higher rental appeal: More suitable for long-term tenants.
• Multi-generational living: Allows separation and privacy for each occupant.

Limitations:

• Slightly higher build cost due to increased size.
• Requires more block space and council compliance considerations.

Side-by-Side Comparison

Here’s a quick breakdown to help clarify your decision:

Space & Layout

• 1-Bedroom: Compact, simple, efficient.
• 2-Bedroom: Spacious, zoned, more versatile.

Cost

• 1-Bedroom: Lower cost and quicker approvals.
• 2-Bedroom: Higher investment but stronger long-term returns.

Privacy

• 1-Bedroom: Suitable for one or two people.
• 2-Bedroom: Ideal for families, separate workspaces, and overnight guests.

Rental Potential

• 1-Bedroom: Great for short-term stays or singles.
• 2-Bedroom: Highly desirable for long-term tenants and families.

Which Floor Plan Is Right for You?

Choosing between a 1-bedroom and 2-bedroom granny flat floor plan comes down to three main factors:

1. Block Size

• Small/narrow blocks → 1-bedroom
• Medium to large blocks → 2-bedroom

2. Intended Use

• Guest stays, studios, short-term rentals → 1-bedroom
• Family accommodation, long-term rental, future-proofing → 2-bedroom

3. Budget and ROI

• If budget is tight → 1-bedroom
• If seeking long-term value and higher rental yield → 2-bedroom

Legal and Compliance Considerations

Before choosing your layout, check local council rules regarding:

• Maximum floor area (commonly 60m² in NSW)
• Minimum setbacks
• Privacy requirements
• Parking and access
• DA or CDC approval pathways

Working with a builder experienced in granny flats  ensures your chosen floor plan meets regulations and suits your block.

FAQs About Granny Flat Floor Plans

Do 2-bedroom granny flats offer better resale value?
Yes. Their versatility and rental potential make them highly attractive to buyers.

Can I convert a 1-bedroom design into a 2-bedroom later?
It’s possible but may require structural changes. Starting with a 2-bedroom floor plan is more cost-effective.

Is a 1-bedroom granny flat too small?
Not at all. Modern designs make excellent use of space, especially for singles, couples, or studio-style living.

Final Thoughts

Both 1-bedroom and 2-bedroom granny flat floor plans offer fantastic opportunities for homeowners. If you’re after affordability and simplicity, a 1-bedroom layout may be perfect. But if you want flexibility, higher rental income, and long-term value, a 2-bedroom design is the clear winner.

Ready to compare designs? Contact us today to explore custom 1-bedroom and 2-bedroom granny flat floor plans tailored to your block and lifestyle.