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Garden Room vs Home Extension: A Comprehensive Comparison

There are two ways to extend your living space: through house extension and garden room. If you’re at a crossroads deciding between the two, we’re here to help. In this guide, we’ll define each, look into their costs, and consider factors to help you make the right decision.

House Extension Explained: What Is It and How Much Does It Cost?

A modern two-story house with a brick exterior on the upper level and a wooden extension on the ground level, featuring large windows and a sliding glass door that opens to a patio and garden.

(Image Credit: Flickr)

A house extension involves expanding the existing structure of a property to create additional space. Many homeowners choose this option over moving to accommodate a growing family, increase their home resale value, or simply extend for outdoor relaxation and leisure.

Conservatories are by far the most common in British home design, especially if there’s ample outdoor space. Others may choose an extension for an open-plan living space or an orangery as an alternative style.

Construction is part of the process, and the extent can vary depending on the complexity and size of the project. The average cost benchmark ranges between £45,000 to £75,000, but every case is different. Building a house extension can be quite time-consuming and financially demanding overall. So, if you’re planning to use it in the next season or so, be sure to set your budget and plan.

What Are Garden Rooms and Their Estimated Expense?

A garden room is a pre-built structure designed for various outdoor uses, available in different model designs, sizes, and materials. It can serve as a log cabin, summer house, garden office, potting shed, and more. Its versatility gives you a blank canvas to utilise the building for personal use or entertainment. Some styles are made to fit into awkward corner spaces in the garden and can be a 2-in-1 multi-purpose room, such as this summerhouse with side shed.

In the UK market, the average cost of a garden room ranges between £5,000 and £10,000. However, prices can vary based on size, the material used, and additional features such as insulation.

Utilities such as plumbing or electricity are also not included with the up-front costs of a garden room and would require additional work to provide a supply from the main house.

BillyOh Dojo E Insulated Building
BillyOh Dojo E Insulated Building

To give you an idea, take a look at the BillyOh Dojo E Insulated Building. This model offers everything a modern garden room needs, featuring insulated panels and double glazing. Priced starting from £5,507, it can also be upgraded with pressure treatment for an added cost. This upgrade saves you the hassle of yearly maintenance and reduces long-term costs, making it a worthwhile investment. The best part? Assembly is straightforward with the help of our instructive manual and a friend’s assistance.

Which One Is Right for You?

BillyOh Dojo E Insulated Building
BillyOh Dojo E Insulated Building

Both options can provide additional space in your home, regardless of your intended use. But when deciding between a house extension and a garden room, budget should be your top consideration. The estimates provided above give you an idea of the costs involved for each choice.

Also, consider the maintenance required to ensure your investment will last long. A well-built and looked-after extension should be as structurally sound as your home, with an expected lifespan of at least 25 years. Thus, investing in quality materials and hiring reliable professionals to do the job are crucial factors, although this can increase the overall expenses.

A quality garden room, particularly wooden models, often comes with a 10 to 15-year protective guarantee against rot, decay, and insect infestation. While maintenance is crucial, the demand is minimal if the structure is pressure-treated. A lifespan of 30+ years is a reasonable expectation. Minor repairs may be necessary as the building ages, but you shouldn’t need a replacement for at least 25 years.

Round-up

If you want a permanent addition to your property, a house extension may be the right choice. However, if you want to save money and time on construction, a garden room from a reputable store and manufacturer could be the ideal solution.

Garden Buildings Direct is your one-stop shop. We offer a wide range of outdoor building products made to the highest standards. Contact us at 01909 768840 — our customer care team is ready to assist you with your orders.

Once you’ve decided and had it installed, your next task is to figure out how you’re going to decorate your new space. Check out these ‘Summer House Interior Ideas You Don’t Wanna Miss!’ for inspiration.