Community Infrastructure Levy in Barnet
Residential CIL in Barnet is charged per m² of new gross internal area under the council's charging schedule (effective 2022-04-01). Mayoral CIL 2 Band 2 (£72.73/m²) is charged on top by the Greater London Authority. Extensions under 100 m² that create no new dwelling are not liable (reg 42); owner-occupiers can claim the self-build, annex or extension exemption — but only before work starts.
| Zone | Adopted rate | Indexed rate | Applied |
|---|---|---|---|
| Borough-wideResidential including C2, C3 and C4 use classes and sui generis HMOs and other sui generis residential uses (single borough-wide rate).Source: Barnet charging schedule · verified 2026-09-18 | £300.00 | £361.44 (2026) | £361.44/m² |
Source: charging schedule · council CIL page · verified 2026-09-18. Revised charging schedule approved by Council 1 March 2022, applies to permissions granted on/after 1 April 2022 (original 2013 schedule adopted 1 May 2013 still applies to earlier permissions). Rates read from the council CIL page and the Annual CIL Rate Summary 2026 (ODT, https://www.barnet.gov.uk/sites/default/files/annual_cil_rate_summary_-_reg_121c_report_2026.odt): 2022 index 332, 2026 index 400. Other uses: Hotels C1 £200.09 (2026 £241.07), Retail £200.09 (2026 £241.07), Leisure £0, Employment £20 (2026 £24.09), all other uses £0. Barnet adopts the same instalments policy as the Mayoral CIL charging schedule; Exceptional Circumstances Relief available; Infrastructure Payments (in-kind) policy from 1 April 2022. The barnet.gov.uk site blocks non-browser fetches (bot protection); the charging schedule PDF (media/13442) was linked verbatim on the CIL page but could not be opened directly - rates verified from the CIL page and rate summary instead.
| Scheme | Liability | Exemption | At stake if filed wrong |
|---|---|---|---|
| Rear extension, 120 m², owner-occupier | £52,100 | Form 9 | £52,100 |
| Garden annex, 60 m², for a relative | £26,050 | Form 8 | £26,050 |
| New self-build house, 180 m² | £78,151 | Form 7 | £78,151 |
| Small developer, 3 flats, 240 m² (no exemption) | £104,201 | none | £104,201 |
Indicative — the council's Liability Notice is definitive. Under 100 m² and no new dwelling is not liable at all (reg 42).
Free liability range and exemption check. The £29 report gives the filing order for Forms 1, 2, 6 and 7/8/9 with dates and the surcharge at each step.
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