When considering adding a garden room to your property, one of the first questions that comes to mind is how big it can be. The size of a garden room can vary significantly based on several factors including planning permissions, building regulations, and the specific needs you have for the space.
Understanding Planning Permissions
For most garden rooms, planning permission is not required, provided certain conditions are met. These structures are typically considered permitted developments, but this can vary depending on the specifics of the building and its location.
A garden room can be as wide as the property itself, although the total coverage of the garden by any outbuildings, including the garden room, should not exceed 50% of the total garden area.
However, there are specific instances where planning permission may be necessary. If the property is a flat, maisonette, or located within a conservation area or a listed building, you’ll likely need to apply for permission.
Furthermore, in conservation areas, garden rooms that are more than 20 meters away from the main property and under 10m² in size may not require additional permissions.
Building Regulations and Size Limitations
Even if planning permission is not needed, building regulations may still apply, especially for larger structures. Generally, garden rooms with an internal floor area larger than 15m², or those positioned less than 1 meter from any boundary, must comply with building regulations.
This is also true if the structure is built with materials that are not substantially non-combustible.
For garden rooms larger than 30m², adherence to building regulations is mandatory, regardless of the materials used. These regulations ensure that the structure is safe and sound, meeting the required standards for construction and durability.
Height and Design Considerations
When designing your garden room, height is an important consideration. To avoid needing planning permission, the garden room should not exceed 2.5 meters in height if located within 2 meters of a boundary.
Moreover, for garden rooms with a dual-pitched roof, the overall height must not exceed 4 meters.
The depth and width of the garden room are equally crucial. Typically, the depth can range from 1.5 meters to 5 meters, depending on the design and the builder’s specifications. For widths exceeding 7 meters, additional structural supports will be necessary to maintain the integrity of the building.
Special Conditions for Sensitive Areas
Special conditions apply to properties located in Areas of Outstanding Natural Beauty (AONBs) or similar sensitive areas. In such cases, the size and visual impact of garden rooms are more tightly regulated to ensure they do not disturb the aesthetic or environmental quality of the area.
Choosing the Right Builder
Selecting the right builder is critical in ensuring your garden room not only meets all legal requirements but also matches your expectations and needs. It’s beneficial to consult with experts who specialise in garden room construction.
They can provide valuable insights into what is feasible on your property and how to best utilize the space available. For those looking to explore further, the blog at PMG Garden Rooms can offer deeper insight into the possibilities and design options for garden rooms.
Maximising Your Garden Room’s Potential
To truly make the most of your garden room, consider how it will be used. Is it a home office, an art studio, a workout room, or perhaps a space for relaxation? Each use case might dictate different considerations in terms of size, insulation, lighting, and even orientation.
Conclusion
Garden rooms are a fantastic way to add additional living, working, or leisure space to your home. Understanding the regulatory landscape and working with knowledgeable builders will help you maximise your investment.
Whether it’s a cosy space for relaxation, a vibrant office, or a functional studio, the potential to customise your garden room to suit your specific lifestyle and needs is almost limitless.
By adhering to the necessary guidelines and embracing creative design solutions, your garden room can become a seamless and valuable extension of your home.
