Builders in Caterham, Warlingham, Oxted & Woldingham

Excel Construction carries out extensions, loft conversions, refurbishments and new builds in Caterham, Warlingham, Oxted, Woldingham and Chaldon, managed by one main contractor.

Building work we do in Caterham, Warlingham, Oxted, Woldingham and Chaldon

• House extensions sized to Green Belt policy.
• Loft conversions and dormers.
• Full refurbishments.
• New builds and replacement dwellings.
• Roofing and flat roof work.

Building on local homes

The villages and towns along the North Downs edge have a mixture of interwar housing, post-war estates and larger detached homes on bigger plots. Woldingham and Chaldon are largely rural, with a significant amount of Green Belt, and parts of the district fall within an Area of Outstanding Natural Beauty.

Area notes: what we see in each town

Caterham

Interwar and post-war housing with a mix of terraces, semis and detached homes. Extensions and lofts are common.

Warlingham and Oxted

Family homes on larger plots, some near Green Belt land and the North Downs. Check the policies that apply to your site.

Woldingham and Chaldon

Largely rural, with significant Green Belt. How much a home can be enlarged is limited, so plan the size of an extension around policy.

Planning and permitted development

Tandridge District Council is the planning authority for most of this area. Green Belt policy limits how far a home can be enlarged, so the size of an extension needs to be planned with the rules in mind. We assess this before design work starts.

For more detail, read our guide to loft conversion planning permission in London and Surrey.

How a project works with us

1. Free site visit. We look at the house, listen to what you want and talk through options.
2. Design and approvals. Drawings, structural design, planning where needed, building control and party wall notices.
3. Fixed written quote. A clear price, with a named project manager.
4. Build. Our own team carries out the work, managed by one main contractor.
5. Handover. A final check with you before you move back in.

What does it cost?

Every project is priced after a site visit, but our guides explain typical 2026 costs. See the house extension cost guide, the new build cost guide, the flat roof cost guide, the loft conversion cost guide and the kitchen extension cost guide. You can also read about our extensions, loft conversions and new builds.

Why homeowners choose Excel Construction

• One main contractor, so there is no chasing separate trades.
• Around 20 years of experience and a team of around 24 operatives.
• Clear written quotations and a named project manager.
• Party wall notices, drawings and building control handled for you.

Questions homeowners ask

How big can an extension be in the Green Belt?

Green Belt policy generally limits additions to something proportionate to the original building, so each case is judged on its merits. We check with the council early.

Do you work in Woldingham and Chaldon?

Yes, we cover Woldingham, Chaldon, Oxted, Warlingham and Caterham.

Get a free quote in Caterham

Planning work in Caterham, Warlingham, Oxted, Woldingham and Chaldon? Contact us for a free site visit and quote, or see all the areas we cover.

Nearby areas we cover: Croydon, Purley and Coulsdon, Reigate and Tadworth, Sutton, Cheam and Wallington, Bromley and Beckenham.