How much will it cost to extend my bedroom and en-suite in the United Kingdom?

ARTICLE Stephanie Matheson

Bedrooms in the UK can be on the smaller side of what is desirable, especially in older terraced homes. But even a modest update or moderate extension can have a dramatic impact on the look and feel of your bedroom, and have a significant impact on your day-to-day lifestyle. It can also increase the market value of your home.
From Victorian or Georgian terrace through to 1930s and modern homes, every house is different, with varying numbers of bedrooms and layouts. To that end, every renovation project is different too. As a rule of thumb, planning is key and it really pays to do your research both in terms of materials and contractors. A complex renovation project like this requires many different types of tradespeople including builders, carpenters, decorators, plumbers, tilers and electricians. Trying to organise all these independent contractors yourself can sometimes lead to delays and frustration in terms of quality and responsibility.
Home renovation specialists streamline the process and manage a renovation project from start to finish. Tom Bentley from Refresh Renovations explains: “As renovation specialists, we take the hassle out of your project by getting all the necessary permissions, designing the project to your needs and budget, managing the day-to-day challenges of a renovation and organising our team of skilled and reliable tradespeople.”
By planning well from the outset and getting the right team of renovation specialists on board, you can end up saving a lot of money in the long run as you are less likely to make costly mistakes.

How much does a basic bedroom and en-suite makeover cost?

A basic makeover that includes extending an existing bedroom and bathroom within the footprint of your current home could cost you anywhere from about £15,000*. In many cases, bedrooms are located upstairs and especially in dense urban areas same-level extensions may not be an option. However, changes to the layout can often improve the size and flow of your master bedroom, and if you budget can stretch a bit further you could consider a loft or basement conversion.
To make your money go the extra mile, choose basic materials and keep any unnecessary extras to an absolute minimum. You can always add fittings and furnishings at a later stage, but while work is underway it’s wise to get the basics done right. For example, electric wiring with future needs in mind is key and should be part of your makeover. A renovation can uncover unforeseen problems, so make sure you have included a contingency budget of 10-20% in your plans.
When you undertake work to one-bedroom or generally a limited area of the house, it should be manageable to live in your home while the building work is underway. While this can be a hassle at times, it will save you time and money in finding rental accommodation. Speak to your builders about installing a plastic barrier where this is suitable, to control the levels of dust and noise in the rest of the house. As an upside, you will be able to monitor the progress of the work and be available to answer any questions the builders may have right there and then.

Cost to update a bedroom & ensuite on a basic budget

From £15,000*
See how Refresh helped this North Nottinghamshire homeowner achieve an ensuite addition and bedroom update for £14,400

What can I get for a mid-level bedroom and en-suite makeover?

For something a little more luxurious, you’ll need to plan on spending around £60,000+*. This would allow you to include some high-end features within your bedroom and ensuite renovation.
Apart from the bathroom basics, consider a few extras such as underfloor heating, extra-large heating rails and designer taps. If space is very limited, a wetroom might be a good option for your en-suite. For the bedroom itself, too, you could opt for a few chosen extras and splurge on selected items such as a super king-size bed or a flatscreen TV.
Generous wardrobe space is a feature of your new and improved bedroom should not be missing. From small to large scale a wardrobe with sliding doors, or even a modest walk-in wardrobe, offers accessible yet hidden storage space. Clever storage systems help you get organised and utilise every inch of the available wall space.
Chances are you’ll be installing new flooring and possibly carpet in your bedroom. That’s a good time to assess the rest of the flooring especially that of the abutting hallways or bedrooms, to see if it’s worth installing new flooring on the whole house or part of the house. At the same time, while painters are in your home, consider if a simple paint job of the rest of the house could be in the budget to update the whole place at once.

Cost to update a bedroom & ensuite on a mid-range budget

£60,000+*
See how Refresh helped this homeowner achieve a bespoke bedroom and ensuite makeover

What should I include in a high-end bedroom and en-suite renovation?

To really tick all the boxes and include all the latest high-end must-haves, a budget of £90,000+* is a reasonable figure to have in mind. By increasing the size of your property and fitting it out with luxury fittings and furnishings, you will be adding value to your property whilst at the same time creating a fabulous new area for yourself and family to live in.
The cost for high-end bedroom and en-suite renovations partly lays in the larger added area in terms of square meters, but of course, also includes high-end materials from insulation through to home automation. Your bedroom is your oyster and there is a huge range of bedroom suites, accessories, lighting and audio-visual systems on the market. Home automation is becoming more and more popular and automation systems allow you to control lighting, shutters, entertainment systems and more with a single tap of your hand – from your bed!

Cost to update a bedroom + ensuite on a high-end budget

From £90,000+*
Take a look at how Refresh helped these homeowners achieve a luxurious master bedroom & ensuite update - plus a few other exciting additions - for £90,000.

Get in touch if you're thinking about renovating

If you would like to discuss options and ideas for your next renovation project, please use the enquiry form alongside to provide us with your contact details. We will get in touch with you at a time that suits you to discuss your project. If you would like to provide us with more information about your project, we have a more comprehensive enquiry form on our "Get in touch" page too.
*Costs are rough estimates and are subject to change. For a fixed-quote accurate to your specific project, please consult your local Refresh Renovations specialist. All Refresh Renovations franchises are independently owned and operated.
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