How Long Does It Take to Build a Garden Room in the UK?

Building a garden room is an exciting way to expand your living space, offering a versatile and stylish area for work, relaxation, or entertainment. One of the common questions homeowners have is: how long does it take to build a garden room in the UK? The answer can vary based on several factors, including the complexity of the design, the materials used, and the specifics of your site. Here’s a comprehensive look at the typical timeline and what you can expect during the construction process.

Factors Influencing the Construction Timeline

Design and Planning

The initial phase of any garden room project involves designing and planning. This stage can take anywhere from a few days to several weeks, depending on how customised your garden room will be. Working with a bespoke service like eGardenRooms, you’ll collaborate closely with designers to ensure every detail meets your needs.

Obtaining Permissions

Depending on the size and location of your garden room, you may need to obtain planning permission. While many garden rooms fall under permitted development rights, it’s crucial to check with your local planning authority. Securing planning permission can take a few weeks to a couple of months.

Site Preparation

Preparing the site is a crucial step that involves clearing the area, levelling the ground, and possibly laying foundations. Piled foundations are often recommended for stability and durability. Site preparation typically takes a few days to a week.


The construction phase is where your garden room starts to take shape. Here’s a breakdown of the typical timeline:

  • Foundation and Base: Installing the foundation and base usually takes 1-2 days.
  • Building the Structure: Erecting the walls, roof, and structural elements can take 1-2 weeks, depending on the complexity of the design.
  • Installing Windows and Doors: Adding windows and doors, whether you choose powder-coated aluminium or UPVC double-glazed options, typically takes 1-2 days.
  • Internal Work: Insulating the structure, installing electrical wiring, heating systems (like underfloor heating or electric radiators), and internal finishes such as flooring and decorating can take an additional 1-2 weeks.

Finishing Touches

Once the main construction is complete, finishing touches such as painting, installing fixtures, and ensuring everything is to your satisfaction can take a few more days.

Typical Timeline for Building a Garden Room

In summary, from start to finish, the entire process of building a garden room in the UK can take approximately 6-10 weeks. This timeline includes:

  • Design and Planning: 1-4 weeks
  • Obtaining Permissions: 2-8 weeks (if required)
  • Site Preparation: 1 week
  • Construction: 3-4 weeks
  • Finishing Touches: 1 week

Why Choose eGardenRooms?

At eGardenRooms, we pride ourselves on our efficiency and quality craftsmanship. With 30 years of experience in the building trade, we ensure that every garden room we create meets the highest standards of durability and aesthetics. Our bespoke service means we tailor every project to your specific needs, ensuring a smooth and timely construction process.

Areas We Serve

We proudly serve the Home Counties and London, including:

  • London
  • Berkshire: Reading, Slough, Windsor
  • Buckinghamshire: Aylesbury, High Wycombe, Milton Keynes
  • Hertfordshire: Watford, St Albans, Hemel Hempstead
  • Essex: Chelmsford, Colchester, Basildon, Southend-on-Sea
  • Kent: Maidstone, Canterbury, Gillingham, Medway, Dartford, Tunbridge Wells, Ashford, Tonbridge
  • Surrey: Guildford, Woking, Epsom, Redhill


Building a garden room is a fantastic way to enhance your home, providing a functional and beautiful space tailored to your needs. While the construction timeline can vary, partnering with an experienced provider like eGardenRooms ensures a smooth, efficient process from start to finish. Contact us today to start planning your perfect garden room and transform your outdoor space into a wonderful all-year living, playing, and working area.