Dome rooflight and a flat rooflight side by side on a brick extension

Castle Donington

Skylights and rooflights for Castle Donington's old core

11.6 road miles south-east of Derby, on the edge of the National Forest and close to East Midlands Airport.

From timbered cottages to new estates, Castle Donington has rooms that never see the sun. Point to the one that bothers you.

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Windowless bathrooms and deep rear rooms

Back kitchen with a butler sink below a garden window — A back kitchen with a butler sink, lit only by the small garden window.

Top of a narrow staircase with a wooden rail — The top of a narrow staircase with a wooden rail, where the landing stays shaded.

Choosing for Castle Donington's roofs

Bathrooms and loft rooms suit roof windows and VELUX windows; stairwells under boarded lofts suit sun tunnels; extensions suit flat roof rooflights and roof lanterns.

Roofs in this town come in two broad families. Behind the old street frontages sit pitched roofs of tile and slate, many with loft space above bathrooms and landings. Newer estates bring wider, shallower tiled roofs with open-plan kitchens beneath. Whichever you have, we begin with the place in the room where you want more light, whether that is the basin, the hob or the foot of the stairs, and then find the roof position that puts daylight there.

The full guide

Bathrooms in Castle Donington, taken from the basin upward

An upstairs bathroom wedged between two bedrooms can pass a whole year without natural light. The roof is not far above it, which makes it one of the more rewarding rooms to brighten. This is how the spot, the glass and the paperwork work out.

Over the wash basin
Clear or frosted
Room-by-room pairings
Planning here

Callout 1

Daylight at the basin, not the floor

Few family homes were planned around bathroom light. It was fitted wherever the pipes were convenient, often between two bedrooms, with an extractor in place of a window. People stand at the basin to shave, brush teeth and put on makeup, and a single ceiling bulb casts shadows exactly where they do not want them.

What we measure above a bathroom

Where the basin stands: drawn onto the plan
Loft tank or pipes: may shift the opening sideways
Distance to the ridge: sets the height in the slope
Extractor route: kept clear of the light well
Ceiling height: decides the splay of the shaft

A roof window above or just beside the basin changes this. Daylight arrives from above, so it lights a face without shadows, and a sky overhead makes the room seem larger. It also helps with damp. A bathroom that gets sun and fresh air, from an opening sash or a vent, dries out better than one that depends only on a fan.

Our survey begins with a look up from the basin. After that we climb the loft ladder and check the space overhead. Sometimes the opening can go straight over the basin. Sometimes a rafter or a water tank is in the way, and the unit sits a little to one side with a splayed light well that sends the daylight back across the room. We mark the answer on the plan before quoting.

Privacy is rarely a concern with a roof window, since it looks up at the sky and not into a neighbour's window. Where a lower, overlooked position is the only option, obscured glass solves it without darkening the room much.

A bathroom with a roof overhead is one of the easiest rooms to brighten.

Callout 2

Choosing the glass for a wet room

Bathroom glazing needs more thought than a bedroom does. Steam, splashes and the occasional view from the next roof all matter, and so does the question of what happens when someone leaves the window open.

The first choice is between clear and obscured glass. Clear glass is the brightest option and lets you watch clouds pass. Obscured glass scatters the view and still lets plenty of daylight in, which suits a roof that overlooks a neighbouring window. Both can be fitted with the same frame, so the decision can wait until the survey.

The second choice is how the unit opens. Some roof windows swing open on a centre pivot or a top hinge, worked by hand or with a pole. Others are motorised and answer to a wall switch or a rain sensor, which spares you the stretch over a bath. Whichever opens, roof window glazing in a Castle Donington bathroom must reach the window limit in Part L of the Building Regulations, and a rooflight has a looser ceiling, at 2.2 W/m²K.

Finally, there is a coating to think about. Self-cleaning glass breaks down dirt when rain falls on it, which helps on a low-pitch roof where leaves settle. Those options are explained during the visit, and the quote names whichever one is chosen.

Condensation also needs planning in a bathroom here. A bathroom makes more steam than any other room, and a cold pane will collect it. A modern double-glazed unit with warm-edge spacers stays warmer at its edges, which keeps the glass drier, and an opening sash lets the damp air out.

Clear glass or obscured over the basin

Clear glass

Most daylight
View of sky and clouds
Best where unoverlooked

Obscured glass

Soft, even light
Privacy from neighbours
Suits a lower position

Callout 3

Matching a rooflight to each kind of room

Houses in the town range from compact older homes to wide family semis on newer streets, and the right unit changes with the room. A table of the common pairings makes the pattern clear, and we adjust each one to the actual roof at the survey.

Under a sloping bedroom ceiling a roof window works well, set low enough to look out of from a chair or the bed. A landing or a hall with a boarded loft above suits a sun tunnel, which needs only a small dome and a flexible or rigid tube. A flat-roofed kitchen addition takes a flat rooflight or lantern, since daylight then drops straight onto the worktop or table.

Where a room sits under an unconverted loft, a light well through the space is lined and insulated so that it does not leak heat into the attic or cause damp on the ceiling. It is a simple job, and that is why a sun tunnel can be the tidier answer for a small room.

Rooms and the units that suit them

A starting point for common rooms, adjusted at the survey.
Room	Roof	Unit	Why
Bathroom	Pitched	Roof window	Light at the basin
Landing	Pitched, loft above	Sun tunnel	Small dome, long reach
Loft bedroom	Pitched	Roof window	View and ventilation
Kitchen extension	Flat	Flat rooflight	Light on the worktop
Open-plan diner	Flat	Roof lantern	Height and spread

Callout 4

Castle Donington and the planning question

The body that decides any planning question in Castle Donington is North West Leicestershire District Council, and its conservation pages are at nwleics.gov.uk. It can confirm a conservation area, a listing or a special direction, and we ask it about your house before we visit, then report back.

An ordinary house often comes under householder permitted development, with conditions attached. Our planning guide sets those out and points to the government text. A flat or maisonette in Castle Donington has no such route, and a listed building has its own consent to obtain first.

Building Regulations form a second, separate track. If a Castle Donington roof structure is altered for a new rooflight, we send the notification via the local authority or a registered building control approver wherever it applies. Part L reaches even a plain exchange, which it calls a controlled fitting, and the incoming glass has to meet the limit.

Older timber-framed buildings sit in their own category. Even where no conservation area applies, the structure of such a house is less forgiving than a modern one, so the opening is set out with care and any trimming is sized to the timbers actually found in the loft. Tell us at the start if the building is old, and we plan the survey around it.

Once the position is clear, the quote is fixed and written. It stays put on the day, with the 10-year workmanship guarantee written down alongside it. That gives you the planning answer, the Building Control position and the price in one place before anyone goes on the roof.

Houses in a market village near the airport

Castle Donington is a town of about 7,300 people, on the edge of the National Forest and close to East Midlands Airport. It grew as a market place, and a market charter was granted in 1278. The historic core was laid out along Bondgate, Borough Street and Clapgun Street, with the castle once standing at the eastern end of Borough Street. Several timber-framed houses dating from the 17th century and earlier survive along the main road.

Lace-making was an important trade here until the 1850s. In those older buildings the upper floor is often tucked under the roof, with dormers or small windows and a landing that borrows its light from the rooms around it. Rooflights suit them where the slope allows, though a timber-framed building calls for close study of its frame before an opening is cut.

Around the old core the town has grown outward in layers. Interwar and post-war semis and terraces came first, usually brick with tiled roofs, and then later estates with open-plan layouts and bigger kitchens. Many of these homes have bathrooms and landings with no window at all, and loft space that has been boarded or converted. The usual requests are a roof window for a loft bedroom, a sun tunnel for a landing, and a flat rooflight or lantern for a rear extension.

The town has no station of its own. We plan the delivery of glass and materials ahead, so that nothing arrives without a place to put it. Roof time for one plain rooflight is usually a day, sometimes two, with the quote spells out the access.

The town's position near the airport means some householders think first about noise. A modern rooflight can be specified with acoustic glazing, and you can raise it with us at the survey. It is another reason to talk through the room before choosing the unit.

Castle Donington, asked and answered

Is it possible to put a roof window above a bathroom basin?

Usually, yes. We find the basin on the floor plan, check the rafters, water tank and pipes above it, and place the unit as close as the structure allows, with a splayed shaft that carries the light back across the room. Obscured glass is available if overlooking is a worry.

Is it safe to cut into a timber-framed house?

It needs a careful look first. A timber-framed building has its own structure, and the survey checks where the loads run before any opening is drawn. A listed building needs its consent first, which the district council can explain.

Will a rooflight help with the noise from the airport?

Glazing can be specified to reduce noise, and we talk through the options when you tell us it matters. Noise comes through the whole roof and walls as well, so a rooflight is one part of the answer and not the whole of it.

Will an old rooflight swapped for a new one need Building Control?

Swapping like for like still brings in the thermal limit, for Part L counts any swap as a controlled fitting, however small. An installer registered with a competent person scheme can self-certify that kind of job. Cutting a new opening through the structure is notifiable, and that paperwork is ours.

Which rooflight suits a flat-roofed rear extension here?

A flat rooflight or a roof lantern, depending on the room. Joists, covering and build-up are examined, then an insulated upstand is formed to lift the unit clear of standing water. The lantern gives height and spread over a table or worktop.

How do I know whether my street needs a conservation check?

Ask North West Leicestershire District Council, or leave it with us. We research the address ahead of our visit and report what applies. The old core around Bondgate and Borough Street is where older buildings cluster, but a street name alone proves nothing, so the council's answer is the one we use.

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