Under Marshfield's roofs
Long street, stone walls, steep gables
Marshfield grew along a single long street, and the old houses still crowd the pavement with their gable ends and chimney stacks. Behind the frontage sit yards, outbuildings and a scatter of newer housing. Each of these asks something different of a rooflight.
Stage 01 · The High Street
Gables to the road and a second range behind
Walk the length of the High Street and the Cotswold stone does most of the talking. Some houses present a gable to the road, others a long eaves line, and plenty hide a second range, a lean-to or a converted barn out of sight in the yard. A good many are on the statutory list.
Before we measure anything, we work out which of these buildings we are standing in, because that settles which products can be considered at all. We also take time over the character of the street, since a unit that looks plain on one rear slope may look wrong on another.
The coverings change from house to house. Stone slate crowns the older buildings, clay pantiles turn up on others, and where a roof has been renewed in living memory you may find ordinary concrete tile. The flashing for a rooflight is ordered for the covering actually on your slope, because a kit that suits one will not close properly on another.
Chimney stacks add one more thing to read. A roof window must stay well away from a flue and the timber trimmed round it. We note the position of each stack on the survey sheet, along with the valleys and any lower roofs that meet the slope, because they all limit where a unit can sit.
| Building | Roof | Looked at first |
|---|---|---|
| Frontage house | Stone slate or pantile | Listing and conservation boundary |
| Converted barn or outbuilding | Mixed old coverings | Timber layout, planning history |
| Estate house | Concrete tile, trussed rafters | Any planning condition on the estate |
| Rear addition | Flat roof | Deck, upstand, drainage fall |
Stage 02 · Behind the frontage
Barns, yards and the newer streets
Behind the old frontage the village has newer brick and reconstituted-stone housing on trussed roofs, usually with a garage or small rear extension. These raise a different puzzle. When an estate was granted permission, the council sometimes attached a condition withdrawing householder rights, and the paper that came with that permission settles it. We ask to see it.
A converted barn or an old outbuilding raises other questions. The roof may carry a mixture of coverings from different decades, the timbers may follow no pattern at all, and the planning history may include earlier applications that matter to a new opening. The survey for such a building takes longer, and the plan is correspondingly more detailed.
Garages and rear additions on both kinds of house tend to be flat-roofed. A flat rooflight or small lantern over one of them is a different job from a window in a stone slope, with its own checks on the deck, the upstand and where the water drains.
What leaves with us after the visit
- Rafter gaps measured at the planned spot
- Timber soundness noted
- Covering, pitch and underlay recorded
- Route for glass and frames walked
- Permission finding drafted for the plan
Stage 03 · Slate and pan
Opening a stone slate roof without losing its look
Stone slates are laid in courses that shrink in size from eaves to ridge, the biggest and heaviest at the bottom. Cut a window through that pattern and the courses have to be rebuilt around the frame, each slate sorted by size and set back where it belongs. Done carelessly, the new opening reads like a scar; done in order, the unit looks as though it was always there. We plan which slates come off first, and where they are stacked, before the day.
Pantiles pose another puzzle. They roll up and down in a wave, so a flat flashing kit leaves gaps along the troughs. A profiled apron, ordered to the tile, follows the wave and closes the frame side to side. We note the make or the profile at survey and order to match.
Under either covering, the timber in an older roof is seldom regular. Rafters vary in section and spacing, and some have been cut for chimneys in the past. We stretch the tape across the gap at the very point the unit is meant to occupy, and if a rafter would have to be cut, that appears in the plan together with how it is trimmed.
Then there is the angle. Every roof window and conservation rooflight is made for a stated span of pitches, and the steep gables here suit most of them comfortably. The measured pitch is written down, so that the unit named in your plan is one the slope can carry.
Matching spare slates is its own question. Stone slate cannot be bought off a shelf in the sizes of an old roof, so the survey counts what can be reused from the opening itself and says whether any have to be found elsewhere. That count goes into the plan before the order, not after the slope is open.
Graded stone courses
- Slates shrink in size from eaves upwards
- Lifted, sorted and stacked by size
- Relaid so the pattern runs on unbroken
- Rafters judged for the extra weight
Rolling pantile
- Tiles rise and fall in a regular wave
- Profiled apron ordered to the make
- Troughs closed along both sides of the frame
- A few spare tiles counted before work begins
Stage 04 · Planning position
South Gloucestershire and its records
Planning applications go to South Gloucestershire Council. Marshfield has a conservation area, and a designation like that on its own does not forbid a rooflight: such work can remain permitted development unless the council has removed that freedom with an Article 4 direction. So the useful questions are narrower. What does the direction say, if there is one, and what has the council allowed on neighbouring houses? Its website and planning register hold both.
The village also falls within the Cotswolds National Landscape. Reduced permitted development can apply on land of that status, though ordinary rooflights are not simply outlawed. We read what governs your address, put the finding on paper and recommend a question to the council whenever the picture is unclear. Our planning permission guide holds the permitted development tests, so they are not repeated here.
Marshfield has a high number of listed buildings, and for these the test is different. Work that alters how a listed house looks or feels must first get listed building consent, whatever permitted development might otherwise allow. A flat or a maisonette has no such freedoms to begin with.
Your plan ends this part with one plain verdict: either there is nothing to apply for, or we suggest an application, or listing means consent has to be sought first.
Questions put to the record for one address
- Is the house inside the conservation boundary line?
- Does an Article 4 direction cover the street?
- Is the building on the statutory list?
- Did the estate consent take away householder rights?
- Does the Cotswolds designation alter the answer?
Stage 05 · Glass up the passage
Bringing glass to a roof behind a wall
Houses built hard against the pavement leave no front garden and little room for a van. Rear slopes are reached through a side passage, a yard gate or the house, and some plots are walled on every side. The survey walks that route, because the way glass and frames reach the roof shapes the whole schedule far more than the unit itself.
A roof window can usually be lowered into place from the room beneath, so the work outside is mostly flashing, plus slates or tiles closed up beside the frame. If the slope is tall or the access awkward, a scaffold or a tower goes up first, ordered early and noted on the plan. Glass for a flat roof has to be hoisted, so that gets its own check.
A fresh hole in a finished roof counts as building work, so Building Control has a place in the day. If the work is notifiable, we file the paperwork ourselves, and the plan names who receives the notice, the council or a private approver.
A conservation rooflight or a big glazed unit may be made to order and arrive later than something off the shelf. The plan sets down the order date, the delivery that is due and the morning of the fitting, so you can see how the weeks line up.
What bends the schedule in Marshfield
| Kerbside space | Parking for the van, and the carry to the house |
|---|---|
| The way through | House, side passage or walled yard to the rear |
| Height of slope | Decides whether a scaffold or tower is booked |
| Stone slate | Relaying takes longer than modern tile |
| Room below | How much lining and finishing the opening needs |
We note every one of these at the visit, and each feeds into the written quote.