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Black-framed glass extension with a roof lantern and sliding doors opening onto a stone terrace
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House extensions in Kent

We offer a complete turnkey service, from design and build, including architectural and structural engineering, through to full project management. House extensions, expanding and modernising living space while preserving functionality.We offer a complete turnkey service, from design and build, including architectural and structural engineering, through to full project management.

Working across all of KentAcross all of KentStart your project
  • 40+ yearsbuilding in Kent
  • Family businessone team, start to finish
  • Own plantand machinery
  • English HeritageNatural Englandappointed contractor
Why Risdon

Why choose Risdon Renovations

  1. 01

    One-stop solution

    From design through to build, every discipline is coordinated in-house or through trusted partners.

  2. 02

    Experienced and local

    A deep familiarity with local building traditions, such as Kent peg and slate roofing, and with the regulations that go with them.

  3. 03

    Versatility

    Small domestic alterations, high-spec commercial packages, heritage projects and everything in between.

  4. 04

    Quality and reputation

    A strong reputation locally for craftsmanship, reliability and integrity.

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House extensions

What does a house extension with Risdon include?

Everything from the first drawing to the decorating: design and planning support, footings and drainage dug with our own machinery, the structure and roof, then plumbing, electrics, plastering and finishes. You get one quote and one person to call, instead of managing separate trades yourself.Everything from the first drawing to the decorating: design and planning support, footings and drainage dug with our own machinery, the structure and roof, then plumbing, electrics, plastering and finishes.

What we build
  • Single storey and two storey extensions
  • Kitchen extensions and open-plan living spaces
  • Home offices
  • Oak frame extensions and porches
  • Orangeries, with glazing by our sister company PGS Glass
  • Extensions to period and listed homes
Why one team from groundworks to finish saves you hassle

An extension has a lot of moving parts. Here is how we keep them under one roof:

  • Over 40 years building in Kent, as a local family business
  • One team from the first drawing to the final finish, so there is one person to talk to
  • Appointed contractor for English Heritage and Natural England
  • Our own plant and machinery, so groundworks start without waiting on a hire firm
  • A clear quote, with the warranty for your job explained in it
Planning permission, building regulations and party walls

Many extensions need planning permission, and all need to meet building regulations. Our design and build service includes drawings and planning support, with the structural and regulatory work handled alongside the design.

If your extension is close to a neighbour's wall, a party wall agreement may be needed too. We'll flag it early so it doesn't hold the build up.

Recent
work

View the gallery
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How we work

From initial design
to final build

Every project follows the same four steps, from your first call to the final finish.

Start your project

  1. Enquire

    Call us or send the enquiry form and tell us what you have in mind.

  2. Talk to the team

    We talk the project through with you and send you a quote.

  3. Design and planning

    Drawings and planning support, so you can see the project before work starts.

  4. Build and handover

    We manage the build from start to finish, with one person to talk to all the way to handover.

Questions

What people ask

Based in Faversham, working across Kent.

How much does a house extension in Kent cost?

It depends on the size of the job, the materials and what's already there, and material prices move too often for a fixed list to stay honest. Tell us what you're planning and we'll come back with a quote for your job.

Do I need planning permission for an extension?

Sometimes. Some extensions fall under permitted development and some need full planning permission, especially on listed homes. We look at your plans and handle the drawings and planning support for you.

Do you do the whole extension, or just the build?

The whole thing. Design, groundworks with our own plant, the build, the roof and the finishes are all done by one team, with one person to talk to.

Can you extend a period or listed home?

Yes. Risdon is an appointed contractor for English Heritage and Natural England, and we regularly work on period properties where the extension has to sit well with the original.

What warranty do I get?

It depends on the job and the materials, so there isn't one blanket figure. Your quote sets out exactly what's covered for your project before you agree to anything.

Which parts of Kent do you cover?

We are based at Abbots Hill near Faversham and work across Kent. If you are not sure we cover you, ask and we will tell you straight.

Guides

Before you start

Start your project

Tell us about your extension

  • Drawings and planning support as part of the job
  • A local family team, over 40 years in Kent
  • One person to talk to from start to finish

Rather talk it through? 01795 890 170

Based in Faversham, working across Kent.

We use your details only to answer your enquiry. See our privacy notice.

More from Risdon

Our other services

All services
01 / 17
  1. Clay tiled roof on a restored barn conversion01

    Roofing

    Traditional Kent peg and slate roofing, plus heritage roofing on period and listed buildings, using the same local methods Kent's older homes were built with.

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  2. Black-framed roof lantern over a modern kitchen extension with sliding doors to the garden02

    Roof lanterns

    Bespoke Korniche roof lanterns, made to your own specification to fit your home. They bring the most natural light into a flat roof extension, with high standards of strength, security and heat insulation.

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  3. Restored Victorian brick chapel with an apsidal end, arched windows and a new lawn and terrace03

    Listed building and period property restoration

    Restoring period and older properties, including some of the more obscure types, while keeping them structurally sound. We're an appointed contractor for English Heritage and Natural England.

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  4. Louvered pergola over rattan seating, with the pool and garden room beyond04

    Garden rooms, orangeries and garden offices

    Garden rooms, orangeries and home offices that add living and working space to your home, planned and built by our own team from design through to completion.

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  5. Stone-paved path and pool surround leading to a garden room05

    York stone paving

    York stone paving for terraces, patios and paths, laid by our own team as part of our groundworks and site works, with our own machinery for the dig out.

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  6. Timber post and rail fence in front of an oak-clad barn house06

    Post and rail fencing

    Post and rail fencing for paddocks, drives and gardens, part of our groundworks and site works and put in with our own plant, including a post rammer.

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  7. Oak framed barn building with clay tiled roof07

    Oak framed garages

    Oak framed buildings are part of our core construction work. We take your oak garage from your initial idea and planning through to the final build.

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  8. Oak framed porch on a brick cottage08

    Oak frame extensions

    Oak framed buildings are part of our core construction work. Oak frame extensions and porches for period and rural homes, from design and planning through to completion.

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  9. Sage green purpose-made ledged door with a black lever handle, set in white weatherboarding09

    Purpose-made joinery

    Doors, windows, staircases and cupboards made to fit your building rather than picked off a shelf. On period homes that means matching what was there; on new work it means joinery that fits the space exactly.

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  10. Oak parquet floor laid in a herringbone pattern10

    Oak and stone flooring

    Interior finishes in oak and stone, laid on a properly prepared base so they stay flat and sound. Fitted as part of our own projects, or on their own in homes across Kent.

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  11. Renovated bathroom with a freestanding bath, green walls and a bespoke mirror11

    Renovations and refurbishments

    Restorations, refurbishments and renovations, updating interiors and exteriors while keeping the building structurally sound. We coordinate every trade from design and planning through to completion.

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  12. Open-plan living space beneath a painted dome in a converted Victorian chapel12

    Design and build

    Helping you visualise and plan your project, bringing the structural, aesthetic and regulatory sides together. Architectural services and design and build, from your initial idea to the final build.

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  13. Commercial changing-room fit-out13

    Commercial fit-outs and refurbishment

    Refurbishments and fit-outs that modernise existing premises with new layouts or services, plus new builds, extensions and structural upgrades as your business grows. Compliance work covers fire protection and accessibility.

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  14. Restored timber sash windows14

    Property maintenance

    Ongoing maintenance and repairs for homes and commercial property, keeping buildings structurally sound and protecting your investment. The small jobs get the same workmanship as the big ones.

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  15. Attic wet room with brass fittings15

    Plumbing and heating

    Plumbing and heating installations for homes and businesses by our fully qualified team, planned in as part of the build, from bathrooms to the heating in a renovation or extension.

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  16. Glass wall beside an indoor pool, with LED ceiling lighting and downlights16

    Electrical installations

    Electrical installations for homes and businesses by fully qualified electricians, planned in as part of the build, from rewiring a renovation to the lighting in a new extension.

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  17. Freshly painted white cottage with a tiled porch17

    Painting and decorating

    Internal and external painting and decorating. It's one of the last trades in on a project, so it's the bit everyone notices, and it gets the same care as the build.

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