Hassocks
Where a skylight fits on railway-era and Grand Avenue roofs
Drive 8.7 miles north from central Brighton & Hove and you are in Hassocks, close enough that our crews reach it easily. Because the town sits close to the edge of the South Downs National Park, the planning question comes first here, and so does this page. For the full range of products, go to the Brighton & Hove hub.
Sheet 01
Which council decides your planning
Scale: the boundary
The park boundary runs about four tenths of a kilometre from the middle of Hassocks, which puts the centre just outside it. Planning for central addresses sits with Mid Sussex, while a house nearer the Downs may be dealt with by the National Park Authority instead. Building Control is a separate matter: Mid Sussex District Council runs its own Building Control service, wherever the planning decision is made.
That split catches people out. A neighbour two streets away can be dealing with a different planning body from you. So the first step on any Hassocks job is to find out which side of the line the house is on. It takes a phone call or a look at the park authority's planning pages, and it saves weeks later.
Permitted development and Article 4
Rooflights on a house are often allowed under permitted development, subject to conditions, and flats do not have those rights. We have not confirmed any conservation area for Hassocks, and we did not find a register of Article 4 directions made by Mid Sussex District Council. That is not the same as there being none, so ask the council about your address. The rooflight planning guide lays out the general rules. Listed buildings need listed building consent on top.
Building Control in Mid Sussex
For a roof window the energy limit is either 1.4 W/m²K or Window Energy Rating band B. For a flat roof rooflight or lantern the limit is 2.2 W/m²K. Our Building Regulations explainer for skylights and rooflights covers the detail.
Sheet 02
What the railway and the orchards left behind
Scale: the roofs
Until the 19th century Hassocks was a small group of houses and a coaching house. The London and Brighton Railway opened its station in 1841 and spurred the modern village. In the 1930s the Grand Avenue area was developed by George Ferguson on former orchards. Those two episodes explain a good deal about the housing, because homes built in a burst of building have a shared way of being put together.
We do not guess from a date. We say what the work tends to involve. A house from the railway years will have an older pitched roof, which may carry tiles or slate. A house from the 1930s will probably be a pitched roof with a loft space behind it and may have had a flat-roofed rear extension added later. Both can take daylight in the right place, but not in the same way.
Older pitched roofs
An older pitched roof has framing that was cut to suit the house, not a standard. Rafters may not sit at neat centres. A roof window needs a clear opening between rafters, and when the spacing does not suit, the timbers are trimmed and a header is fitted. We measure the actual spacing on the survey and show you where the unit can go.
Inter-war pitched roofs
A 1930s roof usually has more regular framing, and the loft is often big enough to convert. A roof window in the rear slope is the usual choice. If the loft is to be a bedroom, remember that on a two-storey house the escape route is a protected stair, not the window.
Brick, clay and the covering
Brick fields and potteries once used the local greensand, which is part of why clay tiles and brick feel at home in this district. We mention it for a practical reason. Clay tiles are brittle, and they are lifted and relaid with care around a new opening. A roof window set into a clay-tiled slope needs the tiles cut or lifted around it and a flashing kit chosen for the profile. We allow for that in the quote, and we carry spare tiles to the roof so a cracked one does not hold up the day.
Flat extensions
Behind a house, a flat-roofed addition often has no window to the sky. Fitting a flat roof rooflight or perhaps a roof lantern there brings daylight into a room that never had any. The lantern needs structure underneath it, and we check this before quoting.
Sheet 03
Getting to the roof in Hassocks
Scale: the scaffold
The railway runs beneath the Downs through Clayton Tunnel just south of the village, and the town sits along that line. The practical point for us is plain: wherever a house is, the question is how to put people and materials on its roof safely. We answer that in writing, in the access plan, one page in every quote. On that page you find the way up, the licences, any freeholder consent, what the neighbours are told, how Building Control is handled and the figure.
Hassocks is in West Sussex, so any highway licence for a scaffold on the pavement or a parked vehicle on the road is issued by West Sussex County Council. We make the application. The guide to licences and bay suspensions covers the steps.
- Look at the plot Front drive, side passage, rear garden and the road outside.
- Choose the route Back-garden scaffold, street tower or mobile platform, depending on the house.
- Apply for licences We apply to the county council where the highway is involved.
- Tell the neighbours The notice we give is written into the plan.
- Fix the price The access plan carries the figure.
Live in a flat within a house that has been split up, and the freeholder normally owns the roof, so a licence for alterations is usually required. The page on flats and shared roofs covers the consent side, so check your lease first.
Sheet 04
Replacement work on Hassocks roofs
Scale: the old unit
Not every job on established housing is a new opening. Sometimes a unit put in by a past owner reaches the end of its life. The signs are misting between the panes, a damp stain on the ceiling around it, a frame that has gone soft or a flashing that has lifted.
A misted sealed unit has lost its edge seal, and the glass cannot be dried or cleaned from outside. The answer is assessment and a new unit, as the misted and failed rooflights page explains. If the frame or the flashing has gone as well, the whole unit comes out.
| Item | What we check | Effect on the job |
|---|---|---|
| Frame | Rot, distortion, hinges | Decides glass only or whole unit |
| Flashing or kerb | Lifted edges, low upstand | May need rebuilding |
| Opening size | Match to old, or enlarge | Enlarging means new trimming |
| Thermal value | Current Part L requirement | New unit must meet it |
The distinction between glass and unit matters, because a full unit is held to today's thermal values and reglazing alone is not. We tell you which you need before you decide.
The order of work for a replacement is simple. The old unit is lifted out, the opening is checked for sound timber, the kerb or flashing is renewed, and the new unit is fixed and sealed into the roof covering. Then the lining inside is made good. If the structure is poor, we stop and tell you, with a price for the fix, before going on. A fixed price from us means fixed against what we saw on the survey, and any change is raised and agreed in writing first.
When the old unit has to come out, we keep the roof covered while we work. A job is planned so that the opening is closed and weathered before we leave, and the interior is made good where the lining was disturbed. Our 10-year workmanship guarantee covers the installation.
Sheet 05
The right product for each roof
Scale: the glass
For a loft room under a pitched roof, a roof window. If you already have a VELUX and want the same again, the page on VELUX windows covers size codes and fitting. Take an MK04: the letter gives the width and the digits give the height.
For a flat-roofed extension, a rooflight or a lantern. For a hall, landing or bathroom with another room above it, a sun tunnel. For a roof that you also want to walk on, a walk-on rooflight.
Position in the room
Where the unit sits matters as much as which one it is. A roof window set high in the slope lights the back of the room. One set lower lets you see out when you stand. In a loft bedroom, think about where the bed will go and where you will stand to dress, and keep the glass clear of both. On a flat roof, a rooflight placed over the middle of the room spreads light evenly, while one nearer the house wall washes the wall and brightens the darker back of the plan. We mark the position on the roof in chalk at the survey and then check it from inside.
Opening or fixed
A fixed unit lets light in. An opening one lets air in too, and if it is out of reach, an electric opening rooflight can be run from a switch or remote. A loft bedroom benefits from ventilation. A hall does not need it.
Performance of the glass
A room that faces south can overheat under large glass, so ask about the glazing. The page on energy efficient rooflights explains the choices, and a conservation-style unit with a slim frame is described under conservation rooflights.
A rooflight job on a pitched roof also depends on the covering: tiles, slates or something else. The flashing kit has to match it. We select the kit at survey, not on the day.
Sheet 06
Points that come up in Hassocks
Scale: local questions
The local detail that matters most is the planning boundary. The rest follows from the standard process: a free survey, a fixed written quote and the access plan. You can see what shapes the price on our costs page.
A common worry is whether the work will make the room too bright, too hot or too cold. The answer is in the glazing and the position, and we talk it through at the survey. A shaded side of the roof, a tinted or coated pane, or an opening unit with a blind can all change the feel of the room. A blind or shutter can be fitted to most roof windows afterwards and is worth thinking about in a bedroom.
One more thing is worth saying about the older houses. A roof with a long history may have been repaired and patched. When we open it up for a new unit, we may find timbers or coverings that need attention around the opening. We tell you before the work, not after.
To start, book a survey using the quote form, call 01273 282313 or message 07880 284133 on WhatsApp.
Hassocks homeowners often check
Is Hassocks inside the South Downs National Park?
The centre is outside it, by a small margin. Some addresses may fall inside, in which case the park authority is the planning authority. Check your address.
Who runs Building Control in Hassocks?
Mid Sussex District Council runs its own Building Control service, and your quote shows how the paperwork is routed.
Is there an Article 4 direction on my street?
We did not find a register of directions made by Mid Sussex, but that does not prove there is none. Ask the council about your address.
Who applies for the scaffold licence?
We do. West Sussex County Council issues highway licences, and the access plan records the application.
For everything else we install and replace, return to the Brighton & Hove hub.
