The Complete Guide to Renovating a Wiltshire Cottage Bathroom

Owning a period cottage in Wiltshire means you probably love the character. Thick stone walls, low beams, crooked doorframes that make every room look like it's been there since before anyone can remember. The bathroom, though, is where the charm turns into a proper headache. Cottage bathrooms across Marlborough, Bradford-on-Avon and the Pewsey Vale all share the same problems: low ceilings, walls that aren't anywhere close to straight, rubbish ventilation and tight spaces that nobody ever designed for modern plumbing.

Loads of homeowners have already sorted these issues out, and the fixes aren't as complicated as you'd expect. Here's what you'll be up against and how to deal with it all without wrecking what makes the room worth keeping.

Why Cottage Bathrooms Are So Tricky to Renovate

Indoor bathrooms didn't exist when most Wiltshire cottages were built. The rooms that ended up becoming bathrooms were usually converted from pantries, sculleries, boot rooms or small bedrooms, none of which were ever meant to handle plumbing. Ceilings sit under 2.1 metres, walls are miles from plumb, and floors slope in directions you didn't know existed.

Access makes things worse. Bathrooms in older cottages tend to be tucked away at the back of the property or up a narrow, winding staircase on the first floor. Try getting a full-size bathtub up there. Half the time it's physically impossible, and even when you do manage it, the room might not have enough space for the thing once it's inside.

You won't think about any of this until the delivery driver turns up, takes one look at the staircase, and tells you there's no chance.

How to Pick the Right Suite for a Small Space

Standard bathroom suites are made for standard rooms. Cottage bathrooms don't qualify. Compact and short-projection ranges will be your best bet here, because wall-hung basins and toilets free up floor space and stop the room from looking overcrowded. A short-projection toilet only sticks out about 60cm from the wall instead of 70cm or more, and when you're working with a tight room, those 10 centimetres genuinely matter.

If the room can handle it, a freestanding slipper bath tends to have a smaller footprint than a built-in bath with side panels and looks right in an older property. No room for a bath at all? A walk-in shower with a low-profile tray can do the job nicely. Just check that the floor can take the weight and that drainage won't cause issues on an uneven sub-floor, because that's where things can go wrong fast.

Dealing with Damp and Poor Ventilation

Damp is the single biggest headache in cottage bathrooms, full stop. Older properties usually have solid stone or brick walls with no cavity, so moisture from inside the room hits cold masonry and condensation builds up quickly.

Throw in poor ventilation on top of that and you'll end up with black mould and peeling plaster before long.

You'll need a decent extractor fan. If venting directly through an external wall isn't possible, running ducting through the loft space will be your next option. Pick a fan with a humidistat so it kicks in on its own when moisture levels climb. Beyond the fan, keeping the room ventilated between uses will make a huge difference. Even cracking a window open for half an hour after a shower helps more than most people realise.

Wall Finishes That Cope with Humid, Uneven Spaces

Walls cause more grief in cottage renovations than almost anything else. Ceramic tiles need a flat, stable surface underneath them, and when your walls bow and crumble, getting that surface means extensive re-plastering. Then there's the grout. In a damp bathroom with poor ventilation, grout lines will darken and grow mould no matter how well you seal them, and you'll spend ages scrubbing instead of actually enjoying the finished room.

One option that works well in older properties is white cladding sheets. PVC cladding can go straight over existing surfaces without needing the plaster underneath to be perfectly flat. The sheets are waterproof and mould-resistant, so they'll cope with the damp conditions that ruin grout and cause plaster to bubble. They also give you a clean, bright finish, which helps in small rooms where reflecting as much light as possible makes the space look bigger.

Lime plaster with a breathable paint is another route to consider. It suits cottages with solid stone walls because moisture can pass through instead of getting trapped behind the finish. The look is more traditional, but you'll need a plasterer who actually understands heritage buildings to get it right.

Don't Forget the Floor

Cottage bathroom floors are almost never level, and you'll need to deal with that before laying anything new on top. A self-levelling compound can help to a point. If the slope is significant, though, you might have to build up sections with plywood or marine-grade board to get things even enough.

Both vinyl and luxury vinyl tile (LVT) are forgiving on uneven floors and naturally water-resistant, which makes them a solid choice for most cottage bathrooms. Natural stone looks brilliant in an older property, but it's heavy and cold underfoot, and needs regular sealing to stay in good condition. If you do go with stone, underfloor heating is a smart addition, but check first that the floor structure can actually support the extra weight before committing to it.

What This Means for Your Cottage Project

A cottage bathroom renovation in Wiltshire won't be as quick or predictable as fitting out a new-build. The walls won't be straight. The floor won't be level. And you'll almost certainly uncover at least one nasty surprise once you start ripping things back.

But pick the right materials, give yourself enough time to plan properly, and you can end up with a bathroom that functions as it should while still looking like it belongs in the building. Choose finishes that suit the conditions instead of fighting them, and be willing to change your plans as the project moves along. Cottages always throw curveballs, and the renovations that turn out best are the ones where someone rolled with it.