England · Extensions & Renovations

Loft conversions in Kent

Guide price £33,500–£73,000 including VAT across Kent, with a free site survey and a written fixed price.

Bright loft conversion bedroom with roof windows and oak floor

Free survey in Kent

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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.

We offer a loft conversion throughout Kent, from Maidstone, Gillingham, Chatham and Tunbridge Wells to the smaller places in between. Each project starts with a free survey at your home and ends with a written figure, fixed for the work you choose. Because Kent is in England, we work to the planning system and building standards used there, and guide prices for the South East run at £33,500–£73,000 including VAT.

Guide price
£33,500–£73,000 inc VAT
Time on site
6–10 weeks on site
Planning rules
England
Price level
About 12% above the national guide
Towns listed
23
Survey
Free, with a written quote

Loft conversions prices in Kent

Budgeting for a loft conversion in Kent? The numbers below include VAT and are adjusted for the South East, where costs are about 12% above the national guide. The headline range is £33,500–£73,000. Nothing is final until we have measured up at a free survey and agreed the specification with you.

Type of jobWhat it usually involvesGuide in Kent
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:

  • Conversion type: rooflight, dormer, hip-to-gable or mansard
  • Floor area, existing head height and roof structure
  • Adding a shower room or en-suite in the roof
  • Staircase layout, fire doors and the level of finishes

What do you get?

  • Structural calculations and steel beams where needed
  • Dormer, hip-to-gable or rooflight structure as agreed
  • 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
  • Plastering, internal doors and building control sign-off
Rooflight conversionWindows set into the existing roof slope, the simplest option where head height allows.
Hip-to-gableBuilds up a sloping side roof into a vertical gable wall, common on semis and detached homes.
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.

Housing across Kent

Kent's older buildings include oast houses, weatherboarded cottages, Wealden timber-framed houses and Kentish ragstone walls. Medway towns have long rows of Victorian terraces, Margate and Ramsgate have Regency and Victorian seafronts, and Ashford, Maidstone and Dartford have seen large new estates alongside interwar and post-war housing.

Victorian terraces suit loft rooms and rear extensions; weatherboarded and timber-framed buildings may need cladding repairs and lime work. Newer estate homes often take garage conversions, porches and landscaping.

One of England's sunnier, drier counties, but Thanet and the coast are windy, and Weald and London Clay soils can shrink in summer.

Planning and building rules in Kent

Planning law differs across the UK. For a home in Kent, it is the England rules below that count, and we check them with the council ahead of any quote.

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.

How does the job run?

  1. Free site survey

    We begin by looking at the job in person. During the free survey we discuss options, materials and budget for a loft conversion, and photograph or measure anything the quote needs to reflect.

  2. Your fixed price

    The quote arrives in writing, not over the phone. It covers the full scope, the finishes you've chosen, any exclusions and the payment schedule, with a fixed price tied to that specification.

  3. Booking the work

    Once you accept, we agree start dates, order materials and deal with any planning, building control or neighbour notices the job needs. You'll know who is coming and when before work begins.

  4. On site to finish

    The work is carried out to the agreed specification, with floors and furniture protected and the site kept tidy. At the end we clean up, walk through the finished job with you and hand over any certificates.

What you can expect from us

Free site surveyWe visit your home to measure up and discuss the work at no cost, and there is no obligation to go ahead once you have our price.
Guide prices shown upfrontYou can see typical price ranges, including VAT, before you contact us, so you can judge whether a project fits your budget.
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.
Realistic timetablesWe give you an honest estimate of time on site at the quote stage and keep you informed if anything affects the programme once work starts.

Questions about a loft conversion in Kent

Can I put a bathroom in my loft?

A bathroom or shower room can usually be added in a loft conversion if waste pipes can reach the soil stack with enough fall, or a pumped system can be used. Dormers make this easier because they give standing height for a shower. Water pressure, extraction and the position of the boiler also matter. We plan the bathroom layout at the design stage so pipes are hidden in the structure.

How much does a loft conversion cost?

A typical dormer loft conversion on a 3-bed semi costs £33,500–£73,000. A simple rooflight conversion costs less, while hip-to-gable and mansard conversions cost more because they change the roof structure. As a rough guide, allow around £800–£1,700 per square metre of new floor plus fixed costs for the staircase, steels and fees. Adding a shower room is the most common extra. We confirm a fixed price after surveying your loft.

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.

Do you cover Maidstone, Gillingham and Chatham?

Yes. As well as Kent, we cover Maidstone, Gillingham and Chatham and the rest of Kent. Our coverage is UK-wide, so the process is the same wherever you are: a free site survey, a quote in writing that fixes the price for the agreed scope, and one point of contact while the work is planned and carried out.

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.

Towns in Kent

Find your town below. Every place listed in Kent is covered for a loft conversion, with the same survey, written quote and fixed-price process.

Ready for a written price?

Tell us a little about your home in Kent and what you have in mind for a loft conversion. We'll arrange a site survey, free of charge, and put our price in writing.

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