What development costs here.
Merton charges £360/m² residential CIL in its top zone — 11th of 30 London boroughs; a consent here carries 6.8 conditions on average (3rd heaviest of 19) and takes 10 weeks to decide (10th slowest of 32). We hold 673 of its s106 agreements and 102 viability assessments — the deeds and the numbers, not a rate table.
- CIL: highest Kensington And Chelsea £1,132/m², lowest Bexley £91/m² · Merton £360/m².
- Conditions: heaviest Hillingdon 7.9, lightest Westminster 3.3 per consent · Merton 6.8.
- Decision time: slowest Camden 15 wks, fastest Barking And Dagenham 8 wks · Merton 10 wks.
- s106 per agreement (deeds read so far, ≥10 per borough): highest Croydon £700k median, lowest Kingston Upon Thames £950 · Merton £1k (263 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 (1,362 in Merton), and how long each type takes from receipt to decision.
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Most common conditions: other (1,826) · approved drawings (1,412) · time limit (1,336) · materials (1,295) · construction management (724) · highways parking (574).
263 of the 673 agreements on file carry a pound total we have read: median £1k, mean £57k, largest £2.8m, £15m 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 Merton 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).
- Other£6.7m152 deeds
- Affordable housing£5.0m57 deeds
- Education£2.9m19 deeds
- Carbon offset & energy£1.6m49 deeds
- Highways & road safety£921k61 deeds
- Public transport£660k4 deeds
- Open space & play£646k35 deeds
- Monitoring & legal fees£373k283 deeds
| Monitoring & legal fees | 82% · London 47% | highest in London | |
| Car club / permit-free | 50% · London 27% | most: Ealing 53% | |
| Other | 44% · London 40% | most: Brent 77% | |
| Highways & road safety | 18% · London 28% | most: Tower 62% | |
| Affordable housing | 16% · London 29% | most: Southwark 69% | |
| Carbon offset & energy | 14% · London 25% | most: Greenwich 67% | |
| Open space & play | 10% · London 16% | most: Brent 46% | |
| Cycle provision | 8% · London 17% | most: Barnet 58% | |
| Construction management | 7% · London 21% | most: Barnet 61% | |
| Trees & ecology | 7% · London 10% | most: Barnet 32% |
Red tick = London share across every deed read (2,311).
- Monitoring & legal fees · in 263 of 346 deeds · typically £720“Council's monitoring costs for planning obligations”
- Carbon offset & energy · in 29 of 346 deeds · typically £24k“Carbon Emissions Offset Contribution”
- Other · in 18 of 346 deeds · typically £0“£200,000 towards local infrastructure”
- Highways & road safety · in 16 of 346 deeds · typically £7k“Improve local highway network”
- Affordable housing · in 12 of 346 deeds · typically £207k“£45,000 contribution for off‑site affordable housing”
- Cycle provision · in 9 of 346 deeds · typically £10k“Cycle Hangar Contribution - Index Linked”
- Open space & play · in 7 of 346 deeds · typically £13k“Improvements to and expansion of public realm including new paving, planting, cycle stands, seating, lighting to public ”
- Trees & ecology · in 7 of 346 deeds · typically £4k“Tree replacement planting within Wimbledon Town Centre”
- Car club / permit-free · in 172 of 346 deeds (50%)“Restriction on parking permits for residential unit; occupiers prohibited from obtaining permits except disabled badge h”
- Other · in 138 of 346 deeds (40%)“discharge of conditions”
- Highways & road safety · in 45 of 346 deeds (13%)“Parking restrictions on Exempt Residential Unit (Flat 1) - no parking permits except for disabled badge holders”
- Affordable housing · in 45 of 346 deeds (13%)“137 affordable housing units (social rent) out of 147 total units in Phase 2A & 2B; 93.2% affordable provision; mix incl”
- Open space & play · in 28 of 346 deeds (8%)“Procure parking restrictions are included in any lease, option, licence or disposal of Residential Unit”
- Construction management · in 24 of 346 deeds (7%)“Provide 7‑day written notice to HSC of commencement and anticipated occupation/sale date”
- Monitoring & legal fees · in 22 of 346 deeds (6%)“Council's reasonable and proper legal costs and disbursements for preparation, completion and registration of this Deed”
- Carbon offset & energy · in 20 of 346 deeds (6%)“short”
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% · Merton 64%. 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 Merton, 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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