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How Much Does Discharge of Planning Conditions Cost in London?

Discharge of planning conditions costs in 2026: the council fee is £116 per submission (covers multiple conditions). Professional fees for preparing the submission run £500–£2,500 for a typical extension, £1,500–£4,000 for a basement or two-storey scheme, and £3,000–£8,000+ for listed or major schemes requiring specialist method statements and surveys.

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Breakdown of typical fees

Council application fee: £116 per submission regardless of how many conditions are bundled. Submit all pre-commencement conditions in one application to minimise fees. Professional preparation: architect or planning consultant time to compile the submission — typically £500–£1,200 for a straightforward extension (materials samples, simple method statement, drainage). £1,500–£3,000 for a project with construction management plan, arboricultural method statement and structural details. £3,000–£8,000+ for listed buildings requiring conservation officer engagement and detailed heritage statements at discharge stage. Specialist consultant fees: arboriculturalist £400–£900 for tree protection method statement; ecologist £500–£1,500 for biodiversity mitigation submission; acoustic consultant £600–£1,800 for noise condition discharge. Material samples (brick, slate, mortar): £150–£500 to source and present.

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Conditions that drive the highest discharge cost

Construction Management Plan (CMP): the highest-cost discharge condition on London projects — requires lorry routes, parking restrictions, dust mitigation, working hours, neighbour liaison plan, vehicle wheel washing, hours of delivery. Drafting cost £800–£2,500. Required on most basements, two-storey extensions and listed projects. Pre-commencement arboricultural condition: requires tree protection plan to BS 5837, on-site arboriculturalist presence at sensitive works, root protection methodology. £1,200–£3,500 over the project life. Pre-commencement ecology mitigation: bat surveys (£1,500–£4,000 if seasonal), bird and biodiversity mitigation strategy, hedgehog highway, swift bricks. £2,000–£6,000+. Heritage condition: conservation officer-approved sample panels of brick, mortar joint profile, slate, sash window profile. £1,500–£4,500 in fabrication and conservation officer review. Surface water drainage condition: SuDS strategy, attenuation calculations, soakaway tests. £600–£2,500.

03

Programme impact

Discharge of planning conditions typically adds 6–10 weeks between planning approval and lawful site start on a residential extension, 10–16 weeks on listed or basement projects. Builderr's standard programme: planning approval week 0, condition discharge submission week 2, full approval week 10, party wall award week 12, site start week 14. Trying to skip or shortcut this stage routinely backfires — enforcement officers actively monitor major sites, and unauthorised commencement creates serious legal exposure. The cost of compliance (a few weeks and a few thousand pounds) is trivial compared with the cost of enforcement or refusal of discharge requiring redesign mid-build.

More questions

Related questions answered.

Can I bundle all conditions into one discharge application?

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Yes — and you should. The £116 fee covers the application regardless of how many conditions it covers. Bundling reduces processing time and total cost. Some authorities prefer separate applications for very different topic areas (heritage materials vs construction management), but a single bundled submission is almost always acceptable.

Are discharge fees refundable if conditions are refused?

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No. The £116 fee is non-refundable regardless of decision. If conditions are refused, you can resubmit with revised information at £116 again. Best practice is to engage with the case officer informally before formal submission to ensure your evidence will satisfy.

Can I start work after discharge submission but before approval?

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No. Pre-commencement conditions must be FORMALLY DISCHARGED (approved by written notice) before any development starts. The submission of a discharge application is not sufficient. Some councils interpret 'development' narrowly (excluding initial site setup) but you should treat any ground disturbance, hoarding installation or material delivery as commencement and wait for discharge approval.

Does Builderr include condition discharge in the contract price?

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Yes for typical householder schemes. Material sample fabrication, construction method statements, drainage calculations and the £116 council fee are included in design-and-build contracts. Specialist consultant fees (arboricultural, ecology, acoustic) are listed at quote stage as separable items where required by the specific conditions on the planning approval.

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