Building regulations fees, charges and payments

Fees and charges for building regulations services, including site inspections and building regulations applications and how to pay.

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Building regulations fees and charges from 1 April 2026

All charges are inclusive of VAT at 20%.

The charges listed below are based on you using a contractor registered with our competent persons' scheme.

Domestic buildings fees and charges

Charges for a new-build house or flat.
Number of dwellings  Full plans charge  Inspection charge
1  £300  £1,326.69
2  £300  £1,935.50
3  £300  £2,344.46
4  £300  £2,744.30
5  £600  £2,853.20
Charges for domestic extensions.
Category  Description 

 

Full plans charge 

 

 Building notice charge
Single storey extensions  Plan charge Inspection charge  
1  Single storey extension not exceeding 10m²  £200  £520.34 £720.34
2  Single storey extension 10m2 to 40m2  £200  £625 £825
3  Single storey extension 40m2 to 100m2  £300  £834 £1,134
2-storey extensions  Plan charge Inspection charge  
4  2-storey extension not exceeding 40m2  £200  £922 £1,122
5  2-storey extension 40m2 to 100m2  £300  £954 £1,254
6 2-storey extension 100m2 to 200m2  £300 £1,13.36 £1,438.76
Loft conversions  Plan charge Inspection charge  
7  Loft conversion without dormers (max 60m2)  £200  £616.14 £816.14
8  Loft conversion that includes a dormer or changes to roof line (max 60m2)  £200  £817.79 £1,017.79
Garages and carports  Plan charge Inspection charge  
9  Erection or extension of a non-exempt single storey domestic detached garage or carport up to 100m2  £403.55  Included In plan charge  £403.55
10  Erection or extension of a non-exempt single storey domestic attached garage or carport up to 100m2  £200  £408.85 £608.85
Other  Plan charge Inspection charge  
11  Conversion of a domestic garage to habitable rooms  £200  £408.85 £608.85
12  Alterations to extend or create a basement up to 100m2  £300  £1,067.44 £1,367.44
Charges for domestic alterations.
Category  Description  Full plans charge Building notice charge 
    Plan charge  Inspection charge   
1  Underpinning  Charge individually determined 
2  Renovation of a thermal element to a single dwelling.  £484.26 Included in plan change  £484.26
Internal alterations, installation of fittings (not electrical) and/or, structural alterations
3  Estimated cost less than £5,000  £408.92 Included in plan charge £408.92
  Estimated cost exceeding £5,000 and up to £25,000  £200 £408.86 £608.86
  Estimated cost exceeding £25,001 and up to £50,000  £200 £619.79 £819.79
  Estimated cost exceeding £50,001 and up to £75,000  £200 £1,017.70 £1,217.70
Window replacement (non competent person’s scheme)
4  Per installation up to 20 windows  £244.07 Included in plan charge  £244.07
Electrical work (non competent person’s scheme) 
5  Any electrical work  £605.81  Included in plan charge  £605.81

Commercial buildings fees and charges

Charges for non-domestic extensions and new-builds.
Category  Description  Plan charge  Inspection charge 
OR Other residential (institution and other) including hospitals, hotels and boarding houses, assembly and recreational use, including clubs, schools and halls
1  Floor area not exceeding 10m²  £200  £959.70
2  Floor area exceeding 10m² but not exceeding 40m²  £300  £1,249.23
3  Floor area exceeding 40m² but not exceeding 100m²  £300  £1,344.05
4  Floor area exceeding 100m² but not exceeding 200m²  £300  £2,019.45
IS  Industrial and storage use - including factories and warehouses 
9  Floor area not exceeding 10m²  £493.32 Included in plan charge 
10  Floor area exceeding 10m² but not exceeding 40m²  £200  £578.93
11  Floor area exceeding 40m² but not exceeding 100m²  £200  £769.33
12  Floor area exceeding 100m² but not exceeding 200m²  £200  £959.70
AO  All other use classes - including offices and shops (commercial) 
13  Floor area not exceeding 10m²  £200  £665.48
14  Floor area exceeding 10m² but not exceeding 40m²  £200  £959.70
15  Floor area exceeding 40m² but not exceeding 100m²  £300  £1,153.99
16  Floor area exceeding 100m² but not exceeding 200m²  £300  £1,430.94
Charges for all other non-domestic works - alterations.
Category  Description  Plan charge  Inspection charge 
1  Underpinning Charge individually determined 
WROD  Window replacement (non competent person’s scheme)    
2 

Per installation 

Over 20 windows up to 50 windows

 £389.45 Included in plan charge
  Per installation, up to 20 windows £200 £578.93
RTEO  Renovation of a thermal element     
3  Estimated cost up to £50,000  £484.68 Included in plan charge
  Estimated cost over £50,000 to £100,000  £200 £379.90
  Estimated cost over £100,000 to £250,000  £200 £578.93
ASIC  Alterations not described elsewhere including structural alterations and installation of controlled fittings     
4  Estimated cost up to £5,000  £422.58 Included in plan charge
  Estimated cost over £5,000 to £25,000  £200 £408.86
  Estimated cost over £25,000 to £50,000  £200 £814.17
  Estimated cost over £50,000 to £100,000  £300 £1,126.71
  Estimated cost over £100,000 to £150,000  £300 £1,326.68
MEZ 5  Installation of a mezzanine floor up to 500m2  £300 £1,019.51
OFO  Office / shop fit out     
6  Floor area up to 500m2  £200 £617.90
  Floor area 500m2 to 1000m2  £200 £817.80
COU 7  Change of use of a building  £371.25 Included in plan charge