Apex designs and builds loft conversions across Preston Park and the wider BN1 area, on whole houses and on flats where the roof space has to be released by the freeholder first. Dormer, hip-to-gable, Velux, mansard and L-shape, with architectural support in house. Ask us for a free, no-obligation quote.
Thinking about a loft conversion in Preston Park? Two permissions tend to come before the planning question here, and either can stop a scheme that the roof itself would have carried easily.
The first is ownership. A great many of the bigger properties in this part of BN1 have been divided into flats, and holding the top-floor lease does not mean holding what sits above the ceiling. The lease decides that, and the freeholder has to release it before drawings are worth commissioning. The second is appearance. Two conservation areas cover a substantial share of the district, one across the park and the streets around it and one over the older village core by the manor and the medieval church. Inside them the size and siting of a dormer, the materials and what can be seen from the street are all weighed far more closely than they would be on the outer edges.
Apex works right across Preston Park and the surrounding BN1 area, with Brighton & Hove City Council as the planning authority throughout. Our in-house architectural support covers layout planning, structural coordination and technical drawings, and our architectural partners can prepare and submit a planning application or Lawful Development Certificate where one is needed. We build to current Building Regulations and coordinate with your Building Control inspector as the job goes on.
What suits a Preston Park property comes down to the roof, the head height once a floor and a lining have eaten into it, and whether you sit inside a designated area. Five types recur across BN1. Within the conservation areas the external result carries more weight than the internal gain, so the realistic shortlist is often shorter than the roof alone would suggest.
The dormer buys back more floor area per pound than any other option, which is why it is the usual answer on the larger houses here. It projects from the slope to produce a flat ceiling and full standing height across a decent span. On a rear elevation outside the designated streets it will often fall within permitted development. Inside them, its proportions and materials are precisely what gets examined, so we design one that can be defended rather than one that maximises every centimetre.
For roofs where the end slopes inwards rather than rising to a flat wall. Building that slope up to a full gable recovers the volume the hip was taking. Because it alters the silhouette from the side, it is a simple proposition on the outer streets and a much more considered one inside a conservation area, where the unbroken run of roofline along a terrace or a matched pair is part of what the designation exists to protect.
Often the only realistic route inside a designated street, and frequently the only one available on a flat. The roof profile is untouched: we strengthen what is underneath, insulate, board out a floor and fit windows into the existing pitch. Because nothing projects and nothing changes outside, it rarely troubles the planners. The trade is that you get whatever the current roof gives you, so we measure first and tell you plainly whether that is enough.
The most substantial of the five, taking a roof slope up to near vertical for the greatest floor area and headroom available. Full planning permission is effectively always needed, and inside a conservation area the argument has to be made on how the finished roof sits among its neighbours rather than on the space it delivers. It belongs to the larger houses here rather than the flatted stock, and is worth testing with Brighton & Hove City Council before design fees are committed.
Available only where the building has a two-storey rear projection to work with. Dormers are added to that projection and to the main roof, and the two join into an L-shaped floor. Rear elevations generally attract less scrutiny than street-facing ones even within a designated area, which can make this the more workable route in Preston Park. Many properties simply lack the shape, so we establish that at the first visit.
The conversion worth building is the one your structure and your permissions will genuinely carry, so the design follows the property rather than a house style. In Preston Park that means the lease and the designation get checked before the roof does, because either can rule out a scheme the timbers would have supported without difficulty. We would rather set out the realistic option on the first visit than walk you through one that was never going to be consented.
We are based in Worthing and in this part of the city often enough that a first look or a mid-build call-out is easy to fit in. We work the Brighton suburbs continually and know how much shifts the moment an address falls inside one of the conservation areas. You get a local crew, one standard from the first day to the last, and people who behave like the building is somebody’s home, because it usually is several.
Close inspection is the test: floors laid level, walls run plumb, plaster lines kept clean, joinery cut to fit. In a designated area the outside gets read as carefully as the inside, so roof detailing, dormer cheeks and window reveals are done properly rather than quickly, and that is what a conservation officer will look at. Everything meets current Building Regulations and we work to your Building Control inspector’s stages. Completed projects are in the gallery below.
Six stages take a Preston Park loft from the first visit to handover. Where the property is a flat, the lease and the freeholder come ahead of all six, and we will say so directly rather than draw something you have no right to build. Drawings and any application sit with our in-house architectural support; the construction is ours. Two duties are yours in law: serving any Party Wall notice, and appointing Building Control.
We come out to the property, run the measurements from floor to ridge, look at how the roof is framed and identify where a staircase could arrive. We also establish whether this is a whole house or a flat and, if a flat, what the lease says about the space above you, because that answer governs whether any of the rest is worth doing. You get a straight assessment before design is discussed. No charge, no obligation.
If drawings exist we will price against them. If not, our in-house architectural support prepares the layout and the technical set that an application or certificate calls for. Inside a conservation area the elevations do as much work as the plans, because the elevation is what the council actually assesses. Your quote and an outline programme arrive with the drawings.
Where an application or a Lawful Development Certificate is required, our architectural partners can prepare it and submit it to Brighton & Hove City Council for you. Within the Preston Park and Preston Village conservation areas, expect a full application more often than not. Three things stay with you: confirming the position for your own address, obtaining whatever freeholder consent the lease requires, and taking Party Wall advice from a surveyor or architect. Party Wall notices are a legal duty on the owner and cannot be served by us.
Work begins only once consents, drawings and structural calculations are settled, and the roof is kept weathertight from the moment it is opened. Programme length follows the conversion type and the building, and an indicative one comes with the quote. In a property split into several dwellings, access, parking and delivery times are agreed in advance so the other households are not caught out by them.
Building Control is yours to appoint, through the council or an approved inspector, and yours to book. We give you notice at each stage so nothing gets closed up before it has been seen. In a converted building the element most worth having inspected while it is still open is the fire separation between one dwelling and the next, because it is expensive to revisit afterwards.
After the final sign-off the loft comes back to you. Keep the completion certificate with your property records, and file any freeholder consent obtained along the way in the same place. On a leasehold property that consent is the document a buyer's solicitor will specifically ask to see, and it is far easier to store it now than to reconstruct it years later.
Completed work from across Sussex, taking in a range of roof shapes, building types and conversion styles. Tell us about your property and we will point you at the closest comparison.
General context for Preston Park homeowners, not legal advice. Confirm the position for your property with Brighton & Hove City Council, and where relevant with an architect, planning consultant or party wall surveyor, before work starts.
Planning authority. Brighton & Hove City Council covers the whole district, and no part of it falls to the National Park.
Conservation areas. Two of them reach a substantial share of the area, one across the park and its surrounding streets and one over the older village core, and inside either permitted development rights are tighter and a full application more likely.
Listed buildings. Several stand around the older core, and listed building consent is a separate matter from planning permission.
Flats and leasehold. Where the property is a flat, establish who owns the roof space and secure any freeholder consent the lease requires before anything else is commissioned.
Permitted development. Beyond the designated streets, and on a whole house rather than a flat, many conversions proceed under it, subject to the usual limits and to any Article 4 Direction.
Party wall. On terraced and semi-detached properties, serving any Party Wall notice is the owner’s legal responsibility and cannot be done by the builder.
Preston Park sits among the parts of Brighton and Hove we cover regularly, so a visit is easy to arrange and the build holds its pace once it begins.
Begin with the free site visit. We measure up, assess how the roof is built and what head height is really there, and settle the two questions that govern everything else here: whether the roof space is yours to convert, and whether the address sits inside a conservation area. Our in-house architectural support can then take on the drawings and any application, and it is worth confirming the planning position for your own address before work starts.
Apex works on loft conversions across Worthing, Brighton & Hove and the wider West Sussex coast. The pages below give a closer look at
the housing, planning and conversion types we see in each area. If your town or village isn’t listed, we likely still cover it, get in
touch for a quick check.
The questions Preston Park owners raise most, whether the property is a whole house or a flat. If yours is not covered, send it through the contact form.
It varies with the conversion type, the size and condition of the building, and the consents required. Rooflight schemes finish soonest; dormer, hip-to-gable, L-shape and mansard builds run progressively longer. In Preston Park the thing that most often stretches the overall timeline is not the construction but everything ahead of it, since a conservation area application and, on a flat, freeholder consent both have to be resolved before a start date means anything. An indicative programme for our part of the work comes with the quote.
More often here than across most of the city. Two conservation areas, one over the park and its surrounding streets and one over the older village core, reach a substantial share of the district, and inside either permitted development rights are usually restricted and a full application to Brighton & Hove City Council is the likely route. Beyond them, and on a whole house rather than a flat, a rear dormer or a hip-to-gable can fall within permitted development, subject to the national limits on volume, siting and windows and to any Article 4 Direction. A mansard needs permission almost anywhere. Where an application or a Lawful Development Certificate is required, our architectural partners can prepare and submit it. Building Regulations are separate and apply either way.
Most people do. The work sits above your existing ceiling for the bulk of the programme and the roof is weathertight as soon as it is opened, so the property stays dry and usable. There will be loud days, chiefly when steels go in and when the stair opening is cut. In a building divided into flats it is worth warning the other households when those days fall, because noise travels further through a converted structure than through a single house.
Loft conversions have long been considered among the better home improvements for value returned, though the actual figure turns on the property, the standard of finish and the local market at the time. Here the sum works differently on a flat, where the value of the roof space and the terms on which a freeholder will release it both enter the calculation before any building cost does. Worth taking an estate agent’s view alongside ours, and on a leasehold property a solicitor’s as well.
The working benchmark is roughly 2.2 to 2.3 metres, measured before any work begins from the top of the existing ceiling joists to the underside of the ridge, since the new floor build-up and the insulated lining will each take a share of it. A single reading at the centre of the span is not much use on its own. The larger houses here often have generous roofs, but a building already divided into flats may have lost height to sound insulation added at an earlier conversion, so we measure what is actually there rather than what the type suggests.
Outside the designated streets, a hipped roof generally points towards a hip-to-gable with a rear dormer, and a property that already has a gable end may need only the dormer. Inside a conservation area, a rear dormer or rooflights are the more consentable routes, and anything altering the street-facing roof has a harder case to make. Where a two-storey rear projection exists, an L-shape becomes worth examining. On a flat the answer is frequently rooflights or nothing, depending on what the lease permits. We will tell you which applies after the free visit.
Yes, in every case, and independently of whether planning permission was needed. The regulations cover structural stability, normally steels and strengthened joists; fire safety, meaning escape routes, fire doors and alarms; the staircase and the headroom above it; insulation; and sound separation from the rest of the building. In a property split into flats that final point is a materially larger piece of work, because the separation has to perform between dwellings rather than between rooms in one home. You appoint Building Control and book the inspections, through the council or an approved inspector.
