Domestic Extensions and Alterations
The charges for Building Regulation work are required to cover the cost of the service provided with the exception of work that is carried out for the benefit of a disabled person that is charge exempt. These charges have been set by the Council on the basis that the building work does not consist of, or include, innovative or high-risk construction techniques and the duration of the building work from commencement to completion does not exceed 12 months.
They have also been set on the basis that the design and building work is undertaken by a person or company that is competent to carry out the relevant work. If this is not the case then the work may incur supplementary charges either as a result of additional inspections necessary to ascertain compliance and/or additional resources necessary to check plans deposited.
There are two methods of establishing the charge for building work: Individually determined charges and standard charges.
The charges for most domestic extensions and alterations are standard charges and are listed in tables B and C.
If you are carrying out multiple extensions and/or multiple types of alterations at the same time the authority will be able to reduce the standard charges, you should ask for an individual assessment of the charge for this type of work.
Where indicated in Table C some work carried out at the same time as domestic extensions in Table B is subject to a reduction e.g. underpinning at same time as new single storey extension. However, where ancillary to the extension e.g. structural opening into extension it is included in the Table B charge.
The use of Part P registered electricians
If relevant electrical work is not carried out using a qualified Part P registered electrician an additional charge is made over and above the standard charges to reflect the cost incurred in obtaining an independent test report for this part of the works.
For the purposes of these charges a competent person undertaking electrical work is one who is a member of a Part P competent person self-certification scheme approved by the CLG or is a qualified electrician competent to sign the relevant BS 7671 electrical certificate.
If your building work is not listed as a standard charge in Table A or Table B, C or D that follow it will be individually determined and you should e-mail Building Control at: buildingcontrol@towerhamlets.gov.uk preferably with ‘request for building regulation charge’ in the title of the e-mail and provide a description of the intended work. We will contact you within 24 hours or alternatively telephone our helpline – telephone 020 7364 5009
Table B
Extensions to a Single Domestic Building
[Regularisation Charge = 1.25 x Building Notice Charge ~ No VAT]
SINGLE STOREY EXTENSIONS
Single Storey Extension Fees
Plan Charges
| Category | Description of Work | Charge (£) | VAT (£) | Total (£) |
|---|
|
1
|
Single storey extension floor area not exceeding 10m2
|
342
|
68.40
|
410.40
|
|
2
|
Single storey extension floor exceeding 10m2 but not exceeding 40m2
|
342
|
68.40
|
410.40
|
|
3
|
Single storey extension floor exceeding 40m2 but not exceeding 100m2
|
342
|
68.40
|
410.40
|
Inspection Charge
| Category | Description of Work | Charge (£) | VAT (£) | Total (£) |
|---|
|
1
|
Single storey extension floor area not exceeding 10m2
|
564
|
112.80
|
676.80
|
|
2
|
Single storey extension floor exceeding 10m2 but not exceeding 40m2
|
1010
|
202.00
|
1212.00
|
|
3
|
Single storey extension floor exceeding 40m2 but not exceeding 100m2
|
1455
|
291.00
|
1746.00
|
Building Notice Charge
| Category | Description of Work | Charge (£) | VAT (£) | Total (£) |
|---|
|
1
|
Single storey extension floor area not exceeding 10m2
|
1015
|
203.00
|
1218.00
|
|
2
|
Single storey extension floor exceeding 10m2 but not exceeding 40m2
|
1235
|
247.00
|
1482.00
|
|
3
|
Single storey extension floor exceeding 40m2 but not exceeding 100m2
|
1455
|
291.00
|
1746.00
|
TWO STOREY EXTENSIONS
Plan Charge
| Category | Description of Work | Charge (£) | VAT (£) | Total (£) |
|---|
|
4
|
Two storey extension not exceeding 40m2
|
342
|
68.40
|
410.40
|
|
5
|
Two storey extension exceeding 40m2 but not exceeding 200m2
|
342
|
68.40
|
410.40
|
Inspection Charge
| Category | Description of Work | Charge (£) | VAT (£) | Total (£) |
|---|
|
4
|
Two storey extension not exceeding 40m2
|
534
|
106.80
|
640.80
|
|
5
|
Two storey extension exceeding 40m2 but not exceeding 200m2
|
759
|
151.80
|
910.80
|
Building Notice Charge
| Category | Description of Work | Charge (£) | VAT (£) | Total (£) |
|---|
|
4
|
Two storey extension not exceeding 40m2
|
759
|
151.80
|
910.80
|
|
5
|
Two storey extension exceeding 40m2 but not exceeding 200m2
|
1087
|
217.40
|
1304.40
|
LOFT CONVERSION
Plan Charge
| Category | Description of Work | Charge (£) | VAT (£) | Total (£) |
|---|
|
6
|
Loft conversion that does not include the construction of a dormer
|
342
|
68.40
|
410.40
|
|
7
|
Loft conversion that includes the construction of a dormer
|
342
|
68.40
|
410.40
|
Inspection Charge
| Category | Description of Work | Charge (£) | VAT (£) | Total (£) |
|---|
|
6
|
Loft conversion that does not include the construction of a dormer
|
534
|
106.80
|
640.80
|
|
7
|
Loft conversion that includes the construction of a dormer
|
759
|
151.80
|
910.80
|
Building Notice Charge
| Category | Description of Work | Charge (£) | VAT (£) | Total (£) |
|---|
|
6
|
Loft conversion that does not include the construction of a dormer
|
759
|
151.80
|
910.80
|
|
7
|
Loft conversion that includes the construction of a dormer
|
1087
|
217.40
|
1304.40
|
GARAGES & CARPORTS
Plan Charge
| Category | Description of Work | Charge (£) | VAT (£) | Total (£) |
|---|
|
8
|
Erection or extension of a non exempt detached domestic garage or carport up to 100m2
|
242
|
48.40
|
290.40
|
|
9
|
Erection of a non exempt attached single storey extension of a domestic garage or carport up to 100m2
|
242
|
48.40
|
290.40
|
Inspection Charge
| Category | Description of Work | Charge (£) | VAT (£) | Total (£) |
|---|
|
8
|
Erection or extension of a non exempt detached domestic garage or carport up to 100m2
|
349
|
69.80
|
418.80
|
|
9
|
Erection of a non exempt attached single storey extension of a domestic garage or carport up to 100m2
|
445
|
89.00
|
534.00
|
Building Notice Charge
| Category | Description of Work | Charge (£) | VAT (£) | Total (£) |
|---|
|
8
|
Erection or extension of a non exempt detached domestic garage or carport up to 100m2
|
590
|
118.00
|
708.00
|
|
9
|
Erection of a non exempt attached single storey extension of a domestic garage or carport up to 100m2
|
685
|
137.00
|
822.00
|
OTHER
Plan Charge
| Category | Description of Work | Charge (£) | VAT (£) | Total (£) |
|---|
| 10 |
Conversion of a garage to a dwelling to a habitable room(s) |
298 |
59.60 |
357.60 |
| 11 |
Alterations to extend or create a basement up to 100m2 |
342 |
68.40 |
410.40 |
Inspection Charge
| Category | Description of Work | Charge (£) | VAT (£) | Total (£) |
|---|
|
10
|
Conversion of a garage to a dwelling to a habitable room(s)
|
522
|
104.40
|
626.40
|
|
11
|
Alterations to extend or create a basement up to 100m2
|
693
|
138.60
|
831.60
|
Building Notice Charge
| Category | Description of Work | Charge (£) | VAT (£) | Total (£) |
|---|
|
10
|
Conversion of a garage to a dwelling to a habitable room(s)
|
815
|
163.00
|
978.00
|
|
11
|
Alterations to extend or create a basement up to 100m2
|
1032
|
206.40
|
1238.40
|
All charges are based on the use of a Part P registered electrician.
In other cases, a supplementary Part P charge of £275+ VAT will be made
Note: Charges for work not shown are to be individually determine
Table C
Alterations to a Single Domestic Building
Regularisation Charge = 1.25 x Building Notice Charge ~ No VAT]
1. Underpinning Charges
| Basis of Charge | Plan Charge | Inspection Charge | Building Notice Charge | Reduction (Table B) |
|---|
| Single lift (per 5m or part thereof) |
£242 (£48.40 VAT) → £290.40 |
£275 (£55 VAT) → £330 |
£515 (£103 VAT) → £618 |
0.5 |
| Each additional 5m |
£118 (£23.60 VAT) → £141.60 |
- |
- |
- |
2. Internal Alterations, Installation of Fittings, and/or Structural Alterations
Fixed price based on estimated cost bands
| Estimated Cost | Plan Charge | Inspection Charge | Building Notice Charge | Reduction (Table B) |
|---|
| Less than £2,000 |
£310 (£62 VAT) → £372 |
- |
- |
0.5 (No charge if ancillary to Table B work) |
| £2,000 - £5,000 |
£115 (£23 VAT) → £138 |
£196 (£39.20 VAT) → £235.20 |
£310 (£62 VAT) → £372 |
0.5 |
| £5,000 - £20,000 |
£332 (£66.40 VAT) → £398.40 |
£565 (£113 VAT) → £678 |
£895 (£179 VAT) → £1074 |
0.5 |
| £20,000 - £50,000 |
£548 (£109.60 VAT) → £657.60 |
£933 (£186.60 VAT) → £1119.60 |
£1481 (£296.20 VAT) → £1777.20 |
0.5 |
| £50,000 - £100,000 |
£765 (£153 VAT) → £918 |
£1302 (£260.40 VAT) → £1562.40 |
£2066 (£413.20 VAT) → £2479.20 |
0.5 |
3. Window Replacement Charges (Not Competent Persons Scheme)
| Windows Installed | Plan Charge | Inspection Charge | Building Notice Charge | Reduction (Table B) |
|---|
| Up to 20 windows |
£118 (£23.60 VAT) → £141.60 |
£264 (£52.80 VAT) → £316.80 |
£377 (£75.40 VAT) → £452.40 |
0.5 |
| Over 20 windows |
£118 (£23.60 VAT) → £141.60 |
£527 (£105.40 VAT) → £632.40 |
£634 (£126.80 VAT) → £760.80 |
0.5 |
4. Electrical Wiring Charges (Not Competent Persons Scheme)
| Work Type | Plan Charge | Inspection Charge | Building Notice Charge | Reduction (Table B) |
|---|
| Electrical work (only work being carried out) |
£317 (£63.40 VAT) → £380.40 |
£317 (£63.40 VAT) → £380.40 |
£452 (£90.40 VAT) → £542.40 |
- |
5. Conversion to Create New Dwellings
Fixed price based on estimated cost bands
| Estimated Cost | Plan Charge | Inspection Charge | Building Notice Charge | Reduction (Table B) |
|---|
| Less than £2,000 |
£233 (£46.60 VAT) → £279.60 |
£233 (£46.60 VAT) → £279.60 |
£233 (£46.60 VAT) → £279.60 |
N/A |
| £2,000 - £5,000 |
£269 (£53.80 VAT) → £322.80 |
£600 (£120 VAT) → £720 |
£675 (£135 VAT) → £810 |
N/A |
| £5,000 - £20,000 |
£305 (£61 VAT) → £366 |
£967 (£193.40 VAT) → £1160.40 |
£1116 (£223.20 VAT) → £1339.20 |
N/A |
| £20,000 - £50,000 |
£342 (£68.40 VAT) → £410.40 |
£1334 (£266.80 VAT) → £1600.80 |
£1558 (£311.60 VAT) → £1869.60 |
N/A |
| £50,000 - £100,000 |
£378 (£75.60 VAT) → £453.60 |
£1701 (£340.20 VAT) → £2041.20 |
£2000 (£400 VAT) → £2400 |
N/A |
| £100,000 - £150,000 |
£414 (£82.80 VAT) → £496.80 |
£2068 (£413.60 VAT) → £2481.60 |
£2441 (£488.20 VAT) → £2929.20 |
N/A |
| £150,000 - £250,000 |
£450 (£90 VAT) → £540 |
£2435 (£487 VAT) → £2922 |
£2883 (£576.60 VAT) → £3459.60 |
N/A |
You can use the below links to go to the relevant section:
Standard Charges for the Creation of New Dwellings
Building control charges homepage
Alterations to a Single Non-Domestic Building