West Sussex · Extensions & Renovations

Loft conversions in Littlehampton

Typical time on site: 6–10 weeks on site. Guide price in Littlehampton: £33,500–£73,000 including VAT.

Bright loft conversion bedroom with roof windows and oak floor

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A loft conversion turns unused roof space into a habitable room such as a bedroom, bathroom or office, with a proper staircase, insulation, fire protection and natural light from rooflights or a dormer.

Homeowners in Littlehampton usually consider a loft conversion for one of a few reasons: something has worn out, the house no longer suits the way they live, or they are getting it ready to sell. We visit, agree a specification and put a fixed price in writing. Most jobs like this take 6–10 weeks on site, and we work across West Sussex, including Bognor Regis, Worthing and Lancing.

Guide price
£33,500–£73,000 inc VAT
Time on site
6–10 weeks on site
Postcodes
BN17
Planning rules
England
Local area
West Sussex
Survey
Free, with a written quote

Loft conversions prices in Littlehampton

What will a loft conversion cost in Littlehampton? Our guide range is £33,500–£73,000 including VAT. That figure is adjusted for the South East, about 12% above the national guide, and is intended for planning a budget. A firm written price for your chosen specification follows a free survey at your home.

Type of jobWhat it usually involvesGuide in Littlehampton
Rooflight conversionRooflights in the existing slope, a new floor, staircase and insulation, where head height already works.£22,500–£39,000
Dormer conversionA rear dormer adding headroom and floor space, often with a bedroom and shower room.£36,000–£67,000
Hip-to-gable or mansardLarger structural changes to the roof for the maximum usable space.£56,000–£95,000

Your price depends mostly on:

  • Floor area, existing head height and roof structure
  • Steelwork and any strengthening of walls below
  • Adding a shower room or en-suite in the roof
  • Staircase layout, fire doors and the level of finishes

What’s included?

  • New floor joists strong enough for a habitable room
  • Staircase designed to fit your landing and meet regulations
  • Insulation to walls, roof slope and floor
  • Fire doors, mains-linked smoke alarms and a protected escape route
  • Electrics, heating and plumbing by qualified trades, with certificates
  • Plastering, internal doors and building control sign-off
Rooflight conversionWindows set into the existing roof slope, the simplest option where head height allows.
Rear dormerA box-shaped extension off the rear slope, adding full-height floor space and headroom.
MansardRebuilds the rear slope almost vertically for the most space, common on terraces.
L-shaped dormerTwo dormers joined over a rear wing, giving room for a bedroom and en-suite.

Building in Littlehampton

Chichester has Georgian brick streets, Downland villages use flint and brick, and Horsham stone slabs cover some older roofs. Worthing and Bognor Regis have interwar and post-war bungalows and semis, Crawley was planned as a post-war new town, and Wealden villages to the north feature tile-hanging and timber framing.

Coastal towns face salt-laden south-westerly winds, while Wealden clay inland can shrink and swell with the seasons.

Knowing the typical building types in West Sussex helps, but a survey of your own home in Littlehampton is what decides the right approach to a loft conversion.

Do you need permission in Littlehampton?

For anyone in Littlehampton, the relevant framework is England's. The summary below is general, so we always contact the council about your address before putting a price in writing.

In England, many loft conversions are permitted development: up to 40 m³ of extra roof space on a terraced house and 50 m³ on a semi-detached or detached house, no dormer on the front roof slope facing a road, nothing higher than the existing roof, and similar-looking materials. Conservation areas, listed buildings and flats need planning permission.

Building Regulations approval is always needed for a loft conversion: floor strength, a proper staircase, insulation, fire-protected escape route and smoke alarms. The Party Wall etc. Act 1996 usually applies on attached houses.

Rules change and every property is different, so we check the planning history and constraints for your address before we quote.

The four stages

  1. Free site survey

    We arrange a free site survey on a date convenient to you. We measure up, look at the existing structure and access, and discuss your plans for a loft conversion so the price reflects your home.

  2. Written quote

    We turn the survey notes into a written quote. The price is fixed for the specification we agree, and the document sets out materials, scope and payment stages in plain language.

  3. Dates and permissions

    Next comes planning the work itself. We set a start date that suits you, line up the right trades, and make sure any approvals for a loft conversion are in place before the first day on site.

  4. The work itself

    Our trades complete a loft conversion while your point of contact keeps you updated. When everything is finished, we clear the site, take away waste and go through the result with you before handover.

Working with SK Home Improvements

Written, fixed-price quotesYour quote states one fixed price for the work as we have specified it together, with inclusions and exclusions listed so there are no grey areas.
Changes agreed in writingIf something needs to change once work is under way, we explain why and confirm the cost or saving in writing before carrying on.
Clear staged paymentsThe quote sets out when each payment falls due, linked to stages of the work, so you know in advance what is owed and when.
Certified where requiredElectrical, gas and other notifiable work is carried out by suitably registered people, and you receive the relevant certificates when it is finished.

Common questions

Can I stay at home during the work?

In most cases, yes. Most people can live at home throughout, and we plan the work to keep disruption down by protecting floors, agreeing working hours and keeping access routes clear. Bigger jobs affecting kitchens, bathrooms or heating may mean a short spell with reduced facilities, and we talk this through with you at the survey.

Where will the new staircase go?

The new staircase usually sits above the existing stairs, rising from the landing so it uses space that is already circulation. Sometimes it needs to come from a small bedroom or box room, which reduces that room's size. Building regulations set rules on headroom, step size and handrails, with some flexibility for lofts. We look at options at the survey and show you how each affects the floor below.

What happens at the survey?

We visit your home at a time that suits you, look at the area involved, take measurements and check access, condition and any services that might be affected. We talk through what you want from a loft conversion, explain the options and answer questions. There is no charge and no obligation; afterwards we send a written quote.

Do I need planning permission for a loft conversion?

Whether a loft conversion needs planning permission depends on its size and design, your home's location, whether it is listed or in a conservation area, and which UK nation you live in. In England, many conversions fall under permitted development if the added volume is within 40m³ for terraced houses or 50m³ for other houses and nothing extends beyond the front roof slope. We check what applies before quoting.

What fire safety measures does a loft conversion need?

A loft conversion needs a safe way out in a fire, because the new room is high above the ground. This usually means a protected stair route down to an exit, with fire doors onto the stairway, mains-linked smoke alarms on each floor and sometimes an escape window. The exact approach depends on your house layout. Building control checks these measures before signing off the work.

Also covering areas around Littlehampton

We cover every part of Littlehampton, including BN17, and nearby Bognor Regis, Worthing and Lancing. Wherever you are within that patch, the survey is free and the quote comes to you in writing.

Ready for a written price?

Start with a free site survey for a loft conversion in Littlehampton. You'll receive a written quote showing exactly what is included and how the payments are staged.

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