CILCheck UK
Verified 2026-09-18 against the council's schedule

Community Infrastructure Levy in Kensington and Chelsea

Residential CIL in Kensington and Chelsea is charged per m² of new gross internal area under the council's charging schedule (effective 2015-04-06). Mayoral CIL 2 Band 1 (£96.97/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.

Residential rates — Kensington and Chelsea
ZoneAdopted rateIndexed rateApplied
Zone AResidential (C3 & short term lets).Source: Kensington and Chelsea charging schedule · verified 2026-09-18£750.00£1,158.30 (2026)£1,158.30/m²
Zone BResidential (C3 & short term lets).Source: Kensington and Chelsea charging schedule · verified 2026-09-18£590.00£911.20 (2026)£911.20/m²
Zone CResidential (C3 & short term lets).Source: Kensington and Chelsea charging schedule · verified 2026-09-18£430.00£664.09 (2026)£664.09/m²
Zone DResidential (C3 & short term lets).Source: Kensington and Chelsea charging schedule · verified 2026-09-18£270.00£416.99 (2026)£416.99/m²
Zone EResidential (C3 & short term lets).Source: Kensington and Chelsea charging schedule · verified 2026-09-18£190.00£293.44 (2026)£293.44/m²
Zone FResidential (C3 & short term lets).Source: Kensington and Chelsea charging schedule · verified 2026-09-18£110.00£169.88 (2026)£169.88/m²
Zone G (Earl's Court)Nil for all uses.Source: Kensington and Chelsea charging schedule · verified 2026-09-18£0.00£0.00 (2026)£0.00/m²
Zone H (Kensal Strategic Site)Nil for all uses.Source: Kensington and Chelsea charging schedule · verified 2026-09-18£0.00£0.00 (2026)£0.00/m²

Source: charging schedule · council CIL page · zone map · verified 2026-09-18. Schedule approved 21 January 2015, effective 6 April 2015. Zone maps are split across several PDFs: ZoneA_2, ZoneB_SW_Only_2, ZoneB_W_Only_2, ZoneC_2, ZoneD_G_2, ZoneE_2, ZoneF_H_2 (all under https://www.rbkc.gov.uk/sites/default/files/pdfs/15-04-29%20...). 2026 indexed residential figures read from the council CIL page's 2026 rate table (page updated 18 Sept 2026); separate Annual CIL Rate Summary 2026 PDF link not located. Sub-rates: extra care housing A £510, B £230, C £300, D £160, E/F nil; hotels £160 all zones; student accommodation £125 all zones; industrial/offices/retail/D1-D2/other nil. Borough CIL Instalments Policy 2018 linked from council page (planningconsult.rbkc.gov.uk) - not fetched.

Worked examples for Kensington and Chelsea (council CIL + Mayoral CIL)
SchemeLiabilityExemptionAt stake if filed wrong
Rear extension, 120 m², owner-occupier£11,636 – £150,632Form 9£150,632
Garden annex, 60 m², for a relative£5,818 – £75,316Form 8£75,316
New self-build house, 180 m²£17,455 – £225,949Form 7£225,949
Small developer, 3 flats, 240 m² (no exemption)£23,273 – £301,265none£301,265

Indicative — the council's Liability Notice is definitive. Under 100 m² and no new dwelling is not liable at all (reg 42).

Calculate your own scheme in Kensington and Chelsea

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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