Skylights and rooflights in Pwll

Pwll is a small coastal village, set between Llanelli and Burry Port in Carmarthenshire. It sits on a narrow ledge above the tidal Burry Estuary and has panoramic views across the water to the Gower Peninsula. The Millennium Coastal Path runs through it, a thirteen-mile traffic-free greenway that connects Bynea to Pembrey.

On 17 June 1928 the aviator Amelia Earhart landed near the village in a Fokker F.VIIb/3m, after flying exactly 20 hours and 40 minutes non-stop from Newfoundland. The flight was the first transatlantic crossing by a woman, and a blue plaque along the coastal path commemorates it. Earhart said afterwards that she had been just baggage, like a sack of potatoes, and added that maybe someday she would try it alone. In 1932 she completed her solo transatlantic flight.

Seen from Swansea, Pwll lies to the west. It is 13.73 miles along the road, a distance that keeps the village inside our 30-mile working area. The places nearest to it that we also cover are Llanelli, Burry Port, Five Roads and Trimsaran.

On the houses, we can speak only in general. Homes on a ledge above the water can be arranged to look out over it, with their biggest windows on that side. The roof offers light from the other direction, and a rooflight or roof window above a room brings the sky in without touching the view.

A Pwll application goes to Carmarthenshire County Council. Gower is the neighbouring landscape across the estuary, but Pwll itself lies outside the Gower AONB, so the rooflight rule that applies inside the AONB does not apply to a house here. The ordinary conditions for permitted development are the test instead, applied in the same way to every house, and the planning guide for rooflights in Wales lists them in one place.

Flats and maisonettes never had the householder rights to lose. For a house they can still disappear, through an Article 4 direction that the council has made or through a condition on the permission the house was built under. A listed house needs listed building consent for a rooflight that affects its special character, and that consent is applied for through the local planning authority. Cadw recommends which buildings are listed and publishes their records in Cof Cymru, so you can look an address up before you plan anything, and the council can confirm what it finds.

When a house sits on the edge of the rules, the council's planning team can offer a view. A Lawful Development Certificate turns the view into a formal answer, and having one on file helps if the house is sold.

Building Regulations follow planning. Cutting a fresh opening in the roof will generally call for approval, because the structure changes, the unit adds load and, near a boundary, fire performance has to be weighed. You choose between Carmarthenshire's building control service and a registered building control approver, and where the work is notifiable we handle the Building Regulations notification for you. The Building Regulations guide for Wales has the rest.

An extension built to face the estuary is the likeliest place for a roof lantern, because the pitched glass lifts the ceiling and gathers light from four sides. A builder's upstand carries it, and lantern maker Brett Martin recommends building that upstand level; the lantern will accept a slope of up to 5°, though the maker expects the result to look lopsided. If the lantern forms part of a new extension, the planning route is something we check with Carmarthenshire County Council during the survey. The roof lantern page covers how one behaves in the wet.

A flat roof rooflight is the lower option, and a large one lets the sky into a room without raising the ceiling line. In Approved Document L (Wales), a new or replacement rooflight on a kerb should reach 2.2 W/m²K, and the calculation covers the whole developed surface of the unit. That surface can be bigger than the hole it fills, which is worth knowing when comparing quotes.

In the loft, a room under the slope can have the estuary air through an opening roof window. A top-hung window and a centre-pivot swing differently, and an open sash brings in the estuary air either way, and the difference between centre-pivot and top-hung is worth reading before choosing. A new or replacement roof window in an existing home should reach 1.4 W/m²K, or Band B on the Window Energy Rating scale.

Old glass that has misted between the panes can be handled without touching the rest of the roof, and our guide to why rooflights mist explains what the failure is. A terrace outside a seaward extension can have a walk-on rooflight set into it, which lights the room below and leaves the terrace usable. After a storm the surface is wet and the footing matters, so the finish is chosen with that in mind.

High glass over a stairwell or a double-height space is hard to reach, and an electric opening rooflight answers that. Where the window is a VELUX solar or electric one, its own sensor shuts the sash at the first rain, so nobody has to watch the stairwell window. Inner rooms need a different answer. A landing or bathroom with the loft overhead and nothing but internal walls around it can take a sun tunnel: a small dome sits on the roof, and a tube hands the daylight down to the ceiling.

However the house faces, we begin each job with a free survey and put a fixed written quote in your hands afterwards, and the work is covered by a 10-year workmanship guarantee in writing. Phone 01792 929062 or send the enquiry form.