Community Infrastructure Levy in Islington
Residential CIL in Islington is charged per m² of new gross internal area under the council's charging schedule (effective 2014-09-01). 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.
| Zone | Adopted rate | Indexed rate | Applied |
|---|---|---|---|
| Area AResidential dwellings (C3, C4) and residential institutions (C2, C2A) excluding public health/care facilities.Source: Islington charging schedule · verified 2026-09-18 | £300.00 | not published | £300.00/m² (base) |
| Area BResidential dwellings (C3, C4) and residential institutions (C2, C2A) excluding public health/care facilities.Source: Islington charging schedule · verified 2026-09-18 | £250.00 | not published | £250.00/m² (base) |
Source: charging schedule · council CIL page · verified 2026-09-18. Schedule approved 26 June 2014, effective 1 September 2014. Charging area map is inside the schedule PDF (no separate map URL found). Other rates: retail A £175 / B £125; hotels A £350 / B £250; offices A £80 / B £0; student accommodation £400 both areas; D2/leisure-type uses £80; industrial/public facilities/D1 £0. Council does not publish an indexed 2026 rate table; it directs users to its online calculator (https://pfm.exacom.co.uk/islington/), so indexedRatePerSqm left null. Council page states Islington CIL ranges £0-£400 and Mayoral CIL is £50/m2 (MCIL1 figure, outdated on page). No instalment policy details seen on pages fetched.
| Scheme | Liability | Exemption | At stake if filed wrong |
|---|---|---|---|
| Rear extension, 120 m², owner-occupier | £41,636 – £47,636 | Form 9 | £47,636 |
| Garden annex, 60 m², for a relative | £20,818 – £23,818 | Form 8 | £23,818 |
| New self-build house, 180 m² | £62,455 – £71,455 | Form 7 | £71,455 |
| Small developer, 3 flats, 240 m² (no exemption) | £83,273 – £95,273 | none | £95,273 |
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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