Undertaking a loft conversion is a big investment that requires plenty of planning to ensure the exact desired outcome is achieved.  If you intend to add an en suite bathroom into your blueprints too, you would be wise to spend some time considering how you can maximise what could be a tricky shaped space.  You may have to work with a sloped ceiling and some modest square footage, which is no mean feat when you have so many necessary facilities to squeeze in.  Here are some things that would be helpful to think about prior to your loft en suite build.

1) Consider your space
We don’t just mean in terms of having enough space to actually house an en suite in your new loft design, but also in terms of how big or small would you like your en suite to be.   Firstly, the minimum space required for an en suite is 1.2m x 1.4m and the minimum head height you will need for a shower is 1.8m-2m.  The second part of this dilemma will depend on what your loft conversion will be used for.  If you are creating a master bedroom for example, you may decide that rather than trying to make your en suite as small as possible you may actually be happy taking a little extra space from the bedroom in order to create a luxurious, spacious bathroom to house that double basin set up or walk-in shower you have always dreamed of.  On the other hand, if you are transforming your loft space into a home office or extra living space, it is unlikely that you will need a sizeable en suite and may opt for modest, compact, and practical bathroom facilities instead.

2)  Nail your plumbing, heating, and electrical requirements
One thing that can easily get overlooked with any extension project is the implications of extending services.  Always check whether your boiler and electrical systems will have enough capacity to supply your new loft space.  If you are planning on adding a shower to your loft bathroom for example, you will need to check that you have the right sized boiler to deliver enough hot water to the added all the mixer showers in your home.  This may require you to replace an existing gravity-fed hot water system (and the associated water tanks in your loft-space) with a new combination boiler or an unvented cylinder. The water tanks in your loft need to be replaced with a new combination boiler or an unvented cylinder.

Loft extensions will normally increase the heat load requirements of a house.  Will you opt for underfloor heating, radiators, or a combination of both?  Perhaps you would like electric underfloor heating mats in your luxury en suite?  Again, your choices may require a boiler upgrade in order to achieve them.

Plumbing requirements should be near the top of your discussion list.  When it comes to deciding the layout of sanitary ware in your loft en suite, you will do well to be guided by your plumbing.  While it is possible to locate your en suite anywhere and does not necessarily need to be over your existing bathroom, it is likely to be simpler (and more cost effective) to tap into your existing set up than adding separate plumbing and waste drainage.

Consider how you will need to extend your electrical wiring too so that it reaches the loft efficiently.  Whether you intend to use the conversion as a bedroom, bathroom, office or living area, you are going to need electricity for multiple devices – e.g., lights, smoke detectors, plug sockets, USB points, TVs, and computers.  Thinking of your en suite specifically, you will need to consider shaver points and lighting, particularly if you are adding specific or unusual lighting to enhance the illusion of space.

You can discuss all heating, electrical and plumbing possibilities with your loft conversion specialist to ensure you create a layout and functionality perfect for your needs and avoid costly errors.

3) Create the illusion of light and space
If your loft en suite is going to be on the smaller sized spectrum you will want to add as much light as possible to create a light and airy feel.  Adding dormer and roof windows is often a great solution, allowing as much light to flood in as possible.  Being so high up, you will not have the worry of being overlooked so you can make you windows as large as possible.  Rooflights are great for placing on a sloping ceiling over a basin or toilet, where more head room is required, not to mention the associated ventilation benefits.

Even the actual lights you use in your bathroom can enhance the illusion further.  LED lighting for example, creates a bright, fresh appearance.  Spotlights are great for brightening up nooks and crannies as are lights in corner cabinets and under shelves.

It is worth investing some time and money in getting the fundamentals of your loft conversion right as it will pay off if you ever decide to move in the future.  Potential buyers will expect to pay a higher price for the added loft conversion space – especially if they see that it has been expertly fitted with beautiful en suite facilities and regulation-standard plumbing and electrical wiring.