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Suitable Garage Sizes for Different Allotment Widths in Double Garage Homes

When planning a double garage for your home, it's important to consider the width of your allotment and whether the proposed garage complies with local regulations. This blog post aims to provide an overview of the suitable garage sizes for various allotment widths, keeping in mind that specific regulations may vary depending on your local council's approval process. It's always advisable to consult with the relevant authorities or a qualified professional to ensure compliance with local building codes and obtain the necessary permits before proceeding with any construction.

  1. Single Garage for 10m Wide Allotments: For allotments with a width of 10 meters, a single garage is generally suitable. A single garage typically offers enough space to park one vehicle comfortably and provides some storage options. However, it's important to note that the specific dimensions of a single garage can vary, and it's recommended to consider factors such as vehicle size and any additional storage needs.

  2. Double Garage for 12.5m Wide Allotments: Allotments with a width of 12.5 meters can accommodate a double garage. A double garage provides ample space to park two vehicles side by side. It offers greater convenience, allowing for easier access and maneuverability when entering or exiting the garage. Additionally, a double garage provides extra storage space for tools, equipment, or other belongings associated with vehicles.

  3. Double Garage or Double Garage with Workshop for 15m Wide Allotments: For wider allotments with a width of 15 meters, you have the option to choose between a double garage or a double garage with an attached workshop. The double garage configuration remains the same as mentioned earlier, providing space for two vehicles side by side. However, if you have specific needs for a workshop or desire a designated area for hobbies, repairs, or other activities, you can consider extending the garage to include a workshop space.

  4. Triple Garage for 18m Wide Allotments: Allotments with a width of 18 meters can accommodate a triple garage. A triple garage offers substantial space to park three vehicles side by side, making it ideal for households with multiple vehicles or individuals who require additional storage space. This configuration allows for greater flexibility in organizing vehicles and provides room for storage, a workshop area, or other customized usage.

Council Approval and Permits: Before proceeding with any construction, it is important to note that council approval is typically required for any building works, including garages, and the specific requirements can vary between jurisdictions. To ensure compliance with local regulations, it is crucial to consult your local council or relevant authorities to obtain the necessary permits and approvals[1]. The process may involve submitting detailed structural plans, design calculations, and other relevant documents. Engaging a registered professional engineer in the civil or structural discipline, along with the collaboration of the developer and builder, is often necessary for a successful application.

When considering the appropriate garage size for your double garage home, it is crucial to take into account the width of your allotment. Generally, 10-meter wide allotments can accommodate a single garage, 12.5-meter wide allotments can fit a double garage, 15-meter wide allotments can accommodate a double garage or a double garage with a workshop, and 18-meter wide allotments are suitable for a triple garage. However, it is essential to comply with local regulations and obtain the necessary permits and approvals from the local council before commencing any construction. By adhering to these guidelines and consulting professionals, you can ensure a garage design that meets your needs and aligns with the relevant regulations in your area.

Note: The information provided is a general guideline, and it is recommended to consult local building authorities or professionals for specific requirements and regulations in your area.

Reference: [1] Building and Construction Authority (BCA). (n.d.). Structural Plans and Permit Approvals - BCA Corp. Retrieved from


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