Brighton and Hove price guide

House extension quotes in Brighton and Hove

Typical local pricing runs £2,050–£3,350 per m² of new floor area, excluding VAT and kitchen fit-out. Here is what drives that range in Brighton and Hove, and what to check on the quotation in front of you.

Indicative Brighton and Hove range

£2,050£3,350

per m² of new floor area, excluding VAT and kitchen fit-out. Based on a local cost index of 1.16 against the UK average.

Why Brighton and Hove pricing differs

Expensive and constrained. Parking permits and narrow streets add real cost to any project needing deliveries or skips.

Regency terraces, Victorian conversions and hillside properties with limited access and restricted parking.

Planning and consent

Brighton & Hove City Council has extensive conservation coverage and tight controls on seafront and Regency frontages.

What to check on a house extension quotation

  • Foundation depth allowed for, and the rate if a deeper dig is needed
  • Whether structural steel, engineer's fees and building control are inside the price
  • The glazing allowance, stated per m² or per unit
  • Which items are provisional sums rather than fixed prices

Areas we see quotes from

Homeowners across Hove, Kemptown, Preston Park, Hanover, Portslade and the wider East Sussex area use KnowMyQuote to understand what a contractor has actually priced before committing.

Frequently asked questions

How much does house extension work cost in Brighton and Hove?

Local pricing typically runs £2,050–£3,350 per m² of new floor area, excluding VAT and kitchen fit-out, based on a higher-than-average cost index of 1.16 for Brighton and Hove.

Why do quotes in Brighton and Hove differ so much?

Because they rarely cover the same scope. Expensive and constrained. Parking permits and narrow streets add real cost to any project needing deliveries or skips. Two quotes for the same job can exclude different items, which is why comparing exclusions matters more than comparing totals.

Do I need planning permission in Brighton and Hove?

Brighton & Hove City Council has extensive conservation coverage and tight controls on seafront and Regency frontages. Always confirm with the local authority before committing, and apply for a Lawful Development Certificate where the work is permitted development.

How many quotes should I get?

Three, all priced against the same drawings and written specification. Without a common document you are comparing three different buildings, not three prices.

Independent

We do not sell leads, take commission or work with contractors.

Evidence-linked

Every finding points back to the exact page and wording in your quote.

Private

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