How much space do you need for a granny flat?

The space required for a granny flat depends on several factors, including local regulations and the size of the granny flat itself. Here's a general overview:

1. Minimum lot size:

• Varies by location, but typically 450-600 m² total lot size

• Some areas may allow granny flats on smaller lots

2. Granny flat size:

• Most range from 30-80 m²

• 1-bedroom: 35-50 m²

• 2-bedroom: 60-80 m²

3. Setbacks:

• Typically need 0.9-1.5m from side and rear boundaries

• Front setbacks vary more widely

4. Open space requirements:

• Many councils require a certain amount of open space to remain

• Often 20-30% of the total lot size

5. Parking:

• Some areas require an additional parking space

• This can add 15-20 m² to space needs

6. Access:

• Need space for a path to the granny flat

• If vehicle access is required, allow for a driveway

7. Services area:

• Space for bins, air conditioning units, etc.

8. Total space needed:

• Granny flat + setbacks + open space + access

• Typically 100-150 m² minimum, depending on flat size

9. Height restrictions:

• Usually limited to single story or 3.8-4.8m high

To determine if you have enough space:

1. Check your local council's specific requirements

2. Measure your available yard space

Consider consulting a local builder or planner