What development costs here.
Islington charges £495/m² residential CIL in its top zone — 8th of 30 London boroughs; a consent here carries 4.4 conditions on average (12th heaviest of 19) and takes 11 weeks to decide (5th slowest of 32). We hold 224 of its s106 agreements and 78 viability assessments — the deeds and the numbers, not a rate table.
- CIL: highest Kensington And Chelsea £1,132/m², lowest Bexley £91/m² · Islington £495/m².
- Conditions: heaviest Hillingdon 7.9, lightest Westminster 3.3 per consent · Islington 4.4.
- Decision time: slowest Camden 15 wks, fastest Barking And Dagenham 8 wks · Islington 11 wks.
- s106 per agreement (deeds read so far, ≥10 per borough): highest Croydon £700k median, lowest Kingston Upon Thames £950 · Islington £250k (18 read).
The borough's charging schedule by zone and use, indexed where the council publishes an indexed figure, plus Mayoral CIL. Source: the council's CIL page.
Average conditions attached to a consent, from the decision notices we have read (7,542 in Islington), and how long each type takes from receipt to decision.
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Most common conditions: approved drawings (1,526) · time limit (1,225) · materials (829) · other (486) · archaeology heritage (219) · noise (189).
18 of the 224 agreements on file carry a pound total we have read: median £250k, mean £475k, largest £3.3m, £8.5m in total. Small undertakings dominate the median; the extraction is still running, so treat these as from the deeds read, not the borough total.
Scheme size is the unit count parsed from the proposal; agreements without one are left out here.
Every obligation in the Islington agreements we have read, grouped by what it is for — the money by type where a sum is stated, and how often each type appears at all (most obligations are unpriced: build this, provide that).
- Affordable housing£4.9m10 deeds
- Other£1.9m17 deeds
- Carbon offset & energy£754k8 deeds
- Open space & play£274k5 deeds
- Community facilities£90k7 deeds
- Highways & road safety£69k8 deeds
- Employment & training£61k5 deeds
- Cycle provision£59k6 deeds
| Other | 57% · London 40% | most: Brent 77% | |
| Construction management | 37% · London 21% | most: Barnet 61% | |
| Affordable housing | 33% · London 29% | most: Southwark 69% | |
| Highways & road safety | 27% · London 28% | most: Tower 62% | |
| Carbon offset & energy | 27% · London 25% | most: Greenwich 67% | |
| Community facilities | 23% · London 9% | most: Brent 38% | |
| Cycle provision | 20% · London 17% | most: Barnet 58% | |
| Employment & training | 17% · London 14% | most: Greenwich 39% | |
| Open space & play | 17% · London 16% | most: Brent 46% | |
| Trees & ecology | 13% · London 10% | most: Barnet 32% |
Red tick = London share across every deed read (2,311).
- Other · in 8 of 30 deeds · typically £200k“£50,000 per unit for every additional residential unit created”
- Carbon offset & energy · in 7 of 30 deeds · typically £17k“Carbon Offset Contribution towards reduction of carbon dioxide emissions from existing building stock”
- Construction management · in 6 of 30 deeds · typically £6k“Code of Construction Practice Monitoring Fee towards Council's costs of monitoring compliance”
- Community facilities · in 6 of 30 deeds · typically £4k“Accessible Transport Contribution”
- Affordable housing · in 5 of 30 deeds · typically £500k“Affordable Workspace Contribution towards provision of micro, small and/or affordable workspace facilities”
- Employment & training · in 4 of 30 deeds · typically £2k“Employment and Training Contribution towards improving prospects of local people accessing new jobs”
- Highways & road safety · in 3 of 30 deeds · typically £14k“Initial Highway Reinstatement Payment for repair and reinstatement of highways and footways in vicinity of Development”
- Cycle provision · in 3 of 30 deeds · typically £11k“Cycle Parking Contribution towards the provision of cycle parking spaces within the vicinity of the Site”
- Other · in 9 of 30 deeds (30%)“Flat Roof, Mansard Roof, Flat-roofed dormers, Retained parapet, wall, Extended masonry, fire-wall”
- Construction management · in 6 of 30 deeds (20%)“compliance with the Code of Construction Practice”
- Highways & road safety · in 6 of 30 deeds (20%)“instatement of footways and highways adjoining the development”
- Affordable housing · in 5 of 30 deeds (17%)“100% affordable housing - 40 dwelling units (8x1B2P, 3x2B3P, 27x2B4P, 2x3B5P)”
- Cycle provision · in 3 of 30 deeds (10%)“Bicycle storage provision”
- Open space & play · in 3 of 30 deeds (10%)“submission of a Green Performance Plan”
- Trees & ecology · in 3 of 30 deeds (10%)“Tree Risk Assessment and Management - Acer pseudoplatanus (Sycamore) at Barnsbury Estate. If retained: reduce crown by 3”
- Monitoring & legal fees · in 3 of 30 deeds (10%)“Reasonable legal costs for negotiation, preparation and execution of agreement”
These carry no sum in the deed but cost time, design and management to deliver — the hidden cost of consent here.
Approved schemes since 2015 with a unit count in the proposal; “with s106” means we hold the agreement — a floor, not the council's full count. Smallest scheme here with an agreement on file: 1 unit.
Share of approved 10+ unit schemes with an agreement on file (boroughs with 100+ deeds held) — highest Croydon 83%, lowest Kingston Upon Thames 30%. On small schemes (1–9 units) agreements are rare everywhere except where a small-sites tariff applies: Lambeth 56%, Hackney 54%, Kensington And Chelsea 48%, Camden 44%.
Policy thresholds differ too — most boroughs seek affordable housing from 10 units (national threshold), some (Islington) charge a small-sites contribution from the first unit; the deed rate above is what actually happens, not what the policy says.
Every s106 agreement we hold for Islington, newest first, linked to its application (the document itself is on the application page). “Unread” = on file, terms not yet extracted.
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Showing the newest 40 of 224 · use Search for the rest.