Building regulations

Use this guide to find more information on building regulations and application fees. 

Building regulation application charges

Building regulations: domestic charges

Standard charges for small domestic buildings, extensions, and alterations.

The whole fee is to be paid on submission. If work does not start within 3 years of the submission date, the application will expire. A refund of the inspection charge can be issued. This must be requested in writing.

All areas are calculated as internal floor areas.

VAT is charged at 20%, except for regularisations which are charged with an additional 20% but no VAT is charged on them.

 
Type of building work Full plan charge VAT at 20% Total full plan charge Building notice charge VAT at 20% Total building
notice charge
Regularisation charge
Garages and carports £399 £79.80 £478.80 £399 £79.80 £478.80 £478.80
Loft conversion up to 40m² £649 £129.80 £778.80 £649 £129.80 £778.80 £778.80
Loft Conversion over 40m² up to 60m² £699 £139.80 £838.80 £699 £139.80 £838.80 £838.80

Loft Conversion over 60m²

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Domestic extension up to
40m²
£624 £124.80 £748.80 £624 £124.80 £748.80 £748.80
Domestic extension over 40m² up to 60m² £749 £149.80 £898.80 £749 £149.80 £898.80 £898.80

Domestic extension over 60m²

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Installation of stair lift or ramp to a dwelling Free Free Free Free Free Free Free
Domestic underpinning up to 5m £350 £70 £420 £350 £70 £420 £420
Basement extension £1,023 £204.60 £1,227.60 £1,023 £204.60 £1,227.60 £1,227.60
Domestic electrical wiring per dwelling £296.17 £59.23 £355.40 £296.17 £59.23 £355.40 £355.40
Installation of a heating appliance £173.06 £34.61 £207.67 £173.06 £34.61 £207.67 £207.67

Standard charges for other work (domestic or non-domestic)

The fee may be affected by a risk assessment of your project. Should the contractor require additional inspections to that quoted, then this may be recharged at the completion of works.

VAT is charged at 20%, except for regularisations which are charged with an additional 20% but no VAT is charged on them.

 
Type of building work Full plan charge VAT at 20% Total full plan charge Building notice charge VAT at 20% Total building
notice charge
Regularisation charge
Up to £1000 £199.50 £39.90 £239.40 £199.50 £39.90 £239.40 £239.40
£1000.01 to £5000 £299.50 £59.90 £359.40 £299.50 £59.90 £359.40 £359.40

£5000.01 upwards

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Building Act 1984 – Section 80 – demolition fees

Notice to Local Authority by persons undertaking works of demolition

Under Section 10(3) of the London Local Authorities Act 2004, Lambeth Council is entitled to recover any expenses reasonably incurred under Section 81 of the Building Act 1984. An invoice for the expenses, which will be incurred by the council in this matter, will be estimated when Section 80 notice is received.

An initial fee (for sites other than those classified as large) of £268 is payable and must be sent together with your application. An initial fee of £407 is required for larger sites. For this purpose larger sites are defined as sites containing a building greater than 7,100m² or over 30m high. The fee may be reassessed when a Section 80 notice is received, due to the size and complexity of the site.