Cotswold edge
Cotswold stone on an open ridge
Colerne is a large Wiltshire village on the southern fringe of the Cotswolds, north-east of Bath, with a church tower visible from a long way off. It stands high above the valley of the By Brook. The old centre is stone, and the former airfield just north-west of the village brought a good deal of later housing.
Stage 01 · Church and green
Stone lanes and the airfield estates
The middle of Colerne is built from local limestone: cottages, farmhouses and larger houses along the lanes and around the green near the church. Roofs are mostly stone slate or clay tile, steep in pitch and often broken up by gables and outshots at the back. On older properties like these, a conservation rooflight on the rear slope usually works best, because it leaves the street elevation alone and sits level with the stone slates around it.
Away from the centre, the village spreads. Later houses are brick, render or reconstituted stone, with concrete tile roofs and the regular timber frames of their period. The former RAF airfield on the north-western side, now Azimghur Barracks, brought service housing built in batches, and some of it has since been altered or extended by its owners.
Most of the work involves a room that is short of daylight. The cases that come up are simple to list: a bathroom in the middle of a cottage, a landing without an outside wall, or a bedroom under the roof that turns dim in the afternoon. On newer houses it is just as often a rear extension, or a garage that has become living space.
On a visit here, the opening question is which kind of building we are under. Whatever the answer is, it governs the way the roof, the structure beneath it and the planning check are read.
| House | Roof | First check |
|---|---|---|
| Stone cottage | Stone slate or clay tile | Timbers and conservation area |
| Larger stone house | Stone slate | Listing |
| Later brick or render house | Concrete tile | Frame and plot history |
| Flat-roofed addition | Flat roof or lean-to | Fall and kerb height |
Stage 02 · Open ground
A roof that takes the wind off the edge
Colerne stands high, and its roofs face open country on several sides. That is reason enough to be exact about fixings and flashings. A roof window is set in its frame with a kit made for the covering, and the frame is secured to the rafters at the points its maker specifies, not wherever happens to be convenient on the day. The survey records which slope is most exposed.
With stone slate, the slates around an opening come up and go back in order, largest at the eaves, so each course closes neatly against the frame. Stone slates are heavy, and the timbers beneath need to be sound. We check the rafters at the planned spot and decide whether a trimmer is needed before an order is placed.
Clay and concrete tile roofs are lighter, but their flashing kits differ. A plain tile profile is closely lapped, a concrete tile has a bolder shape, and each wants the kit made for it. A few matching spare tiles are worth having and are noted on the survey. The unit's size code is chosen to sit between the rafters wherever it can.
Where a rear extension has a flat roof, the same precision applies to the upstand and the fall. A frame fixed to a kerb in the open is checked as carefully as any frame in a sheltered street, and the glazing specification is confirmed against the exposure before it is ordered.
On an open ridge the fixings are specified in advance and never improvised on the roof.
Slate cut from local stone
- Thick slates lifted and relaid in order
- Rafters checked for the weight
- Slim unit sits flush
- Fixings placed as the maker specifies
Tile slope on a newer house
- Flashing kit matched to the tile profile
- Spare tiles noted at survey
- Unit sized to the rafter spacing
- Exposed slope recorded in the plan
Stage 03 · Landscape rules
Conservation area, protected landscape, Wiltshire Council
Wiltshire Council decides planning matters in Colerne, and two designations touch the village. The older streets carry conservation area status, and the whole parish is part of the Cotswolds National Landscape. Neither label answers the question by itself. A rooflight in a conservation area can remain permitted development, so long as no direction for your street has removed that right.
National Landscape land loses some permitted development, but a ban on Class C rooflights is not part of that. What applies turns on the address, and a house on the village edge can differ from one beside the church. The council's conservation pages and its planning register hold the detail for each address. We read them on the visit, set the finding in the job plan, and where doubt remains we suggest a direct question to the council before ordering.
Several older buildings are listed, and works that affect their character need listed building consent regardless of what permitted development might allow. Newer estates may carry conditions from their first permission, and householder rights do not reach a flat or maisonette. For the limits themselves, the rooflight planning permission guide is the place to look.
The decision rests with the council. Your plan says plainly which of three routes applies to the job: nothing to apply for, an application to make, or listed building consent to obtain.
The Colerne planning file
- Conservation boundary on the council's pages
- Article 4 direction, if one exists
- Listed building or not
- National Landscape question, for the council
- Estate conditions on newer houses
Stage 04 · Lanes and gates
Village lanes, farm gates and the back garden
Colerne's lanes are tight in places, with stone walls close to the road and gateways made for carts. A van may need to stand some way from the house, and a back garden may be reached only by a side passage or through the building. We walk the route on the visit and note where the unit will be carried.
A window in a pitched roof normally comes up from inside, which leaves flashing and covering as the work outdoors, plus a little more detail than usual on a high site. Should the slope be lofty or steep, or stand above a garden that drops away, a scaffold or tower is reserved ahead of time and shown in the plan. A lantern frame bound for a rear extension gets an access check in the same visit.
Building Control appears in the plan because the Building Regulations take an interest whenever a roof is opened up, even for one small unit on a cottage slope. Where the work is notifiable we send in the notice and name the receiving office. Come evening, the slope is shut, the stone or tile is dressed back and the room waits for its lining.
We fix the date for the work on ordering day. Slim conservation units and special sizes may take longer to turn up than an everyday roof window, so the plan sets order, delivery and fitting in sequence. Weeks can pass between order and delivery, and the date on the plan allows for that. The work is then covered by our 10-year workmanship guarantee.
Colerne: what can slow a fitting
| Lane and gateway | Distance from the van to the nearest gate |
|---|---|
| Rear access | Through the house or a side passage |
| Scaffold or tower | Needs booking for high, steep roofs |
| Roof covering | Slow work to relay stone slate |
| Inside finish | Lining the reveal, then decorating |
Each item is recorded on the visit and flows into the quote.
Stage 05 · Under the slates
What a first look at a Colerne roof records
Where a loft exists, the visit begins inside it. We measure the gap between rafters at the chosen spot, read the timbers for soundness and look at what lies beneath the slates or tiles. A torch and a tape do most of the work, and the findings go straight onto the sheet, including any timber that looks recently replaced. Old roofs sometimes carry the marks of earlier alterations, and those tell us where the structure was cut or strengthened in the past.
Outside, the slope and its covering are noted together, plus any chimney, valley or neighbour's wall close to the chosen position. Inside, we decide where the glass should fall above the bed, the staircase or the tub, and whether the unit should open.
The finished plan sets out the unit and its code, what the planning records say, how Building Control comes into it and every date. It travels with the written quote, and no booking is made until you have read both. If a first choice proves awkward on this roof, the plan can offer a second.
