West Kingsdown skylights and rooflights
West Kingsdown began as a woodland settlement above the Darenth Valley and grew into a village strung along the A20, with garages, shops and cafes by the late 1930s. A box room, a dining room or a bathroom in a building from any of those years can be lit through the roof.
- Free survey, fixed written quote
- 10-year workmanship guarantee
Three building eras in West Kingsdown and their dim rooms
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1 Cottages from the small-village years The parish held 506 people at the 1901 count and 427 by 1927. Cottages of that period are usually small in plan, with low eaves, so a box room under the roof can end up with a single small window. -
2 Roadside buildings of the 1930s By 1938 the village had six garages, nine shops and ten cafes. A building that began as one of them and now serves as a home has its own planning history, and we check that before anything else. -
3 Houses and extensions of later decades Houses from the later twentieth century, and the extensions added to them, can leave a dining room sitting deep inside a long plan, a long way from any outside wall.
From woodland settlement to roadside village
What the village's long, slow history means for the roofs over its small rooms.
Kingsdown, the old name for West Kingsdown, traces its beginnings to Anglo-Saxon settlements in the woods above the Darenth Valley. From 1066 to 1630 the land passed through a series of landlords, Edward IV among them, and from 1630 to 1784 it was held by absentee landlords. Even at the start of the twentieth century the place was tiny: the 1901 figure was 506 people, the 1911 figure 407 and the 1927 figure 427. Cottages of the nineteenth and early twentieth centuries are usually modest in plan, with low eaves and windows pushed deep into thick walls, and wherever one of that kind survives here it is the roof where daylight can be added. The questions that come first are the same for each: how high the eaves are, what covers the roof, and what lies behind the ceiling.
The box room
A box room is the small bedroom over a hall or beside the stairs, and in an older cottage it often sits under the slope with one little window to its name. A roof window above the bed or desk gives it sky overhead. Where there is not enough headroom for a full-size unit, or the position is awkward, a sun tunnel serves a small room well. The two do different jobs. A roof window offers sky, light and, with a sash that opens, air. A sun tunnel offers light only. For a box room used as a bedroom the window is the natural choice, and for a landing or a cupboard-sized space the tunnel makes sense.
The bathroom
Bathrooms were fitted into old cottages after the fact, in whichever corner had pipes close by, and some ended up with no outside wall. Glass in the roof can give such a room daylight where cutting through a wall is not possible. Our guide to a roof window explains the options with an opening sash, which also let damp air out. Position matters over a bath, because the sash has to be within reach to be opened, so the spot is marked on the ceiling with you before anything is cut. The glazing and the ventilation are chosen together at survey.
Older roofs are not framed like modern ones. Rafter spacing and timber sizes vary, and a ceiling can be uneven. The extra timber that frames a new opening has to fit what is already there, so it is measured in the loft and the roof is not assumed to be the same as the one next door. Ceilings in older cottages can be lath and plaster, which makes dust when opened, so we sheet off the room and the stairs and keep the dust down as we go.
Cottage roofs differ in what covers them as well. Clay tile, concrete tile and slate each need their own flashing, and an old clay roof may have to be lifted and re-laid course by course around the frame so that the tiles still sit true.
What shapes the figure for a cottage roof
- CoveringClay tiles, concrete tiles and slate each have their own flashing.
- Existing timbersRafter spacing and condition set how much framing the new opening needs.
- HeadroomThe height of the sloping ceiling points to a roof window or to a sun tunnel.
- Reaching the eavesLow eaves help on access; a steep or narrow lane can still call for extra equipment.
- Finish insideLining the opening and matching the ceiling around it.
A shop, a garage or a house
The roads through the village became more important as time went on, and a turnpike was set up on what is now the A20 to provide income. Later the A20 was widened to a dual carriageway, then reduced again to a single carriageway, and the trees that had lined it were lost to the village. Along that road came the businesses of the 1930s. Buildings of that kind are sometimes turned into homes, and the way it is done sets the rules for later work on the roof.
The planning route depends on how a building became a home. Where a shop, office or barn was made into a house using the change-of-use permitted development route, the owner does not have the rights that go with an ordinary house. Where the conversion went through with a full planning permission, those rights are still there, except where the permission carried a condition removing them. We ask to see the paperwork before we draw anything, and the guide to planning for skylights lists the conditions in full.
| How it began | What to confirm | Where it leads |
|---|---|---|
| Built as a house | Whether a condition on its planning permission took householder rights away | The usual rules for rooflights and roof windows apply if none did |
| Converted by change-of-use permitted development | The prior approval paperwork | Householder rights are absent, so a planning application is the route |
| Converted under full planning permission | The decision notice and every condition on it | Householder rights remain unless a condition removed them |
| Flat or maisonette | Nothing further on rights: they never apply | A planning application, or the council's confirmation that none is needed |
| Listed building | The listing and the council's records | Listed building consent for a new or altered roof window |
Where a later extension has added a flat roof to a building of that sort, the glass that suits it is a rooflight. The covering, the falls and the deck underneath are checked first. Our page on rooflights for flat roofs lists them.
Who decides, and what else is protected
The local planning authority is Sevenoaks District Council. West Kingsdown Windmill is a smock mill from the early nineteenth century, and it is Grade II listed; it appears on Greenwood's map of 1821 and on the Farningham Tithe Map of 1840. It shows how old some structures near the village are. The council can confirm whether a house is listed, which we check before pricing. We handle the Building Control notification where the work is notifiable. A lantern on a flat roof stands higher than a flat rooflight, and its position is dealt with in the planning and Building Regulations page for roof lanterns.
Papers worth finding first
If the house has a history of change, a few documents save time at the survey: the decision notice for any conversion, any prior approval letter, the listing details if there are any, and the completion certificate for earlier building work such as an extension or a loft room. None of them has to be perfect. The council holds copies, and where something is missing we say what to ask for and from whom.
A survey in West Kingsdown
West Kingsdown is on the A20, about 5 miles south-east of Swanley. The survey is free and takes in the whole roof, so you can show us any room that has always been gloomy.
The dining room is the room people stop noticing is dim, because it has always been that way. A dining room set deep in a plan, with a hall or a later extension around it, may have no outside wall left at all. Where the roof above is flat, a rooflight or a lantern lets daylight in over the table. Under a pitched roof, a window set into the slope does the work.
| Room | Likely roof option | First check |
|---|---|---|
| Box room | Roof window over the bed, or a sun tunnel | Headroom under the sloping ceiling |
| Dining room | Flat rooflight or lantern; roof window under a pitched roof | What sits above the room |
| Bathroom | Roof window with an opening sash, or a sun tunnel | Ventilation route and the glazing |
Extensions change the picture. A later addition to the back or side of a house can bury a dining room that once had a window onto the garden. What sits above it then decides the product: the flat roof of the extension, the pitched roof of the house itself, or a first floor, in which case daylight has to come by a different route. We look at each of these in the loft and on the roof, and a lantern is considered only where the roof can carry one and the council's rules allow it. Our roof lantern page covers the larger glazed option.
In the loft we note the rafter spacing, the insulation and any pipes or cables that cross the line of the opening, because each of them can move a window a few centimetres one way or the other. That detail goes into the quote, and we mark the final position on the ceiling with you. In a bathroom the route for extracting steam is settled at the same time, so that a fan duct and the new opening do not compete for the same gap between rafters.
A box room under a low eaves line needs one more check. Standing height falls away quickly towards the wall, so the window goes where someone will stand or sit beneath it, and the sill height is set from the floor. A bed pushed under the slope and a desk pulled out into the room call for different positions, so we ask where the furniture goes first.
You get the paperwork when the work is complete, along with a 10-year workmanship guarantee in writing. To arrange one, use the quote form, message 07880 284133 on WhatsApp or email info@orchardskylightsmaidstone.co.uk.
Eynsford, Wrotham and Otford are the nearest villages on our list.
Roadside buildings and cottage box rooms
The box room in our cottage has a window about the size of a tea tray. What are the options?
Headroom decides. With enough height under the slope, a roof window over the bed or desk gives the most light, and air if the sash opens. In a tight roof, a sun tunnel brings daylight in through a smaller opening. Either way the room keeps all of its floor space. We measure the ceiling at survey.
The house was a cafe and became a home. Does that change what we need to apply for?
It can, because the route depends on how the building was converted. If the owner used the change-of-use permitted development route, the householder rights are absent; if the work had full planning permission, they stay unless a condition took them away. Bring the decision notice to the survey and our planning guide explains the rest.
Where would a rooflight application for a West Kingsdown house be sent?
Sevenoaks District Council is the local planning authority. Whether any application is needed in the first place comes from the type of house and its history.
Nearby towns to West Kingsdown
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