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Granny Flat Garden Rooms

Granny Flat Garden Rooms: The Ultimate Guide to Transforming Your Garden


Granny flat garden rooms have taken the world of home improvement by storm. These functional, stylish, and versatile spaces offer an affordable and practical solution for homeowners who are looking to expand their living space while enhancing their property’s value. In this comprehensive guide, we will delve into the world of granny flat garden rooms, discussing their benefits, design ideas, and construction process. So, if you’re interested in transforming your backyard into a dream oasis, read on!

What are Granny Flat Garden Rooms?

Granny flat garden rooms are detached, self-contained living spaces built within your property’s boundaries. They are typically smaller than the main house and are designed to offer a comfortable, private living area. These structures are perfect for accommodating extended family members, such as grandparents or adult children, or for use as a rental unit, home office, or art studio.

Benefits of Granny Flat Garden Rooms

  1. Increase Property Value

Adding a garden room to your property not only expands your living space but also boosts your home’s value. These self-contained units are attractive to potential buyers, as they offer versatile living arrangements, which can be used for multigenerational families or as a source of rental income.

  1. Generate Rental Income

Garden rooms can serve as an additional source of income if rented out to tenants. This rental income can help offset the cost of construction and even contribute towards your mortgage payments.

  1. Accommodate Family Members

Garden rooms are perfect for providing extra space for extended family members, ensuring they have their own comfortable, private space while still being close to the main house.

  1. Versatility

These structures are versatile and can be customised to serve various purposes, such as a home office, art studio, or even a personal gym.

Design Ideas for Granny Flat Garden Rooms

  1. Open-Concept Living Space

An open-concept living space in a granny flat garden room is perfect for creating a welcoming, spacious environment. It allows for easy movement between the kitchen, living room, and bedroom while providing ample natural light.

  1. Modern Aesthetic

Incorporating a modern aesthetic into your granny flat garden room design can create a sleek, sophisticated space. This can be achieved with the use of minimalist furniture, clean lines, and neutral colors.

  1. Eco-Friendly Design

Consider incorporating eco-friendly features into your granny flat garden room, such as solar panels, energy-efficient appliances, and environmentally-friendly construction materials. These features not only help reduce your carbon footprint but also save on energy costs.

  1. Outdoor Living Space

Maximize the connection between your granny flat garden room and the outdoors by adding a patio or deck. This creates a seamless flow between indoor and outdoor living spaces, perfect for entertaining or enjoying the fresh air.

The Construction Process

  1. Planning and Permits

Before you begin constructing your granny flat garden room, it is essential to check your local zoning laws and building codes. These regulations will dictate the size, placement, and other requirements for your structure. It is also crucial to obtain the necessary building permits before commencing construction.

  1. Choosing a Design

Select a design for your granny flat garden room that suits your specific needs, style preferences, and budget. You can either choose a pre-designed plan or work with an architect or designer to create a custom design.

  1. Hiring a Contractor

Hire a reliable, experienced contractor to oversee the construction of your garden room. Ensure that they are licensed, insured, and have a solid reputation for delivering quality work on time and within budget.

  1. Construction

The construction process will typically involve site preparation, laying the foundation, framing, installing plumbing and electrical systems, insulation, and

drywall. Following that, the interior finishes, such as flooring, cabinetry, and paint, will be completed. Finally, the exterior finishes, such as siding and roofing, will be installed, and landscaping will be done to integrate the granny flat garden room seamlessly into your backyard.

  1. Inspection and Final Touches

Once construction is complete, your garden room will need to pass a final inspection by the local building department. This ensures that the structure is built to code and is safe for occupancy. After passing inspection, any remaining final touches, such as installing fixtures and furnishings, can be completed.

Cost Considerations

The cost of building a granny flat garden room can vary greatly depending on factors such as size, materials, finishes, and labour. On average, expect to spend anywhere between £1700 and £2500 per square metre for a professionally built garden room. Keep in mind that additional features, such as custom designs, high-end finishes, and eco-friendly elements, may increase the overall cost.

Low-Maintenance Granny Flat Garden Rooms: Enjoy the Perks Without the Hassle

Garden rooms offer numerous benefits, including versatility, affordability, and increased property value. One of the most attractive aspects of these structures is their low-maintenance nature, allowing you to enjoy the perks without the hassle of constant upkeep. However, some regular maintenance and upkeep tasks are essential to ensure the longevity and appearance of your granny flat garden room.

  1. Exterior Maintenance: Though most garden rooms are designed with low-maintenance materials, it’s still crucial to inspect the exterior periodically for signs of wear and tear or damage. This includes checking the siding, roofing, and windows, and promptly addressing any issues.
  2. Interior Maintenance: Keeping the interior of your granny flat garden room clean and well-maintained is relatively simple, thanks to the smaller space and the use of durable materials. Regularly dust, vacuum, and clean surfaces to maintain the room’s appearance and comfort. Periodically inspect plumbing and electrical systems and address any issues promptly.
  3. Landscaping: A well-maintained garden surrounding your garden room not only enhances its visual appeal but also helps protect the structure from potential damage caused by overgrown trees or bushes. Mow the lawn, trim trees and bushes, and tend to any plants or garden beds to keep the area looking its best.

By performing these minimal maintenance tasks, you can keep your garden room looking beautiful and functioning efficiently for years to come, ensuring you continue to enjoy the many benefits it offers without the burden of constant upkeep.


Garden rooms are an excellent solution for homeowners looking to expand their living space and increase their property value. With their versatility, affordability, and numerous benefits, these structures are a fantastic addition to any property. By following the design ideas, construction process, and maintenance tips outlined in this guide, you can create a beautiful, functional granny flat garden room that will serve you and your family for years to come. So, don’t hesitate – start planning your dream backyard oasis today!

Steen Building Services: Your Trusted Partner in Granny Flat Garden Room Construction

When it comes to constructing your dream granny flat garden room, choosing the right contractor is crucial. Steen Building Services is a reputable, experienced company specializing in granny flat garden room construction. With a dedicated team of skilled professionals, Steen Building Services provides high-quality craftsmanship and exceptional customer service, ensuring a seamless construction process from start to finish. Their expertise in creating customised designs tailored to your specific needs, style preferences, and budget sets them apart in the industry. By choosing Steen Building Services, you can rest assured that your garden room will be built to the highest standards, resulting in a beautiful, functional space that exceeds your expectations. Experience the Steen Building Services difference and transform your garden into the oasis you’ve always wanted.

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