Planning drawing prices in London, October 2026

Householder planning drawings start at £515 drawings + £150 survey (£665 total) and permitted development drawings with a Lawful Development Certificate at £425 drawings + £150 survey (£575 total); every other project has its own fee in the groups below. Each figure is a starting fee: once we have checked your address, we send one fixed fee for your house.

Every fee includes location and block plans inside a planning package, redraws of our drawings until approval and an independent check of the set, with no VAT to add. The measured survey, the council’s fee and two optional services sit outside it.

• No VAT on top: every price on this page is the full price you pay.
• In the fee: location and block plans inside any planning package (£39 when bought alone).
• In the fee: redraws of our drawings until approval, free of charge, if the council asks for changes.
• In the fee: an independent check of every set before it goes to the council.
• Not in the drawing fee: the measured building survey, a separate £150 fee, no VAT to add, shown beside each drawing fee with the total. One survey serves every set for the same house, so it is charged once, not once per set.
• Not in the fee: the council’s application fee, which you pay to the council.
• Not in the fee: a tender pack (from £945), or answering your builder’s questions and visiting the site after approval (fee quoted on request).

• Measured building surveys
• How it works: officer liaison and redraws

Planning permission drawings and building regulations drawings each start at £515 drawings + £150 survey (£665 total), and structural calculations at £389, with the complete package of all three from £1,235 drawings + £150 survey (£1,385 total), no VAT to add.

Location and block plans

£39

Permitted development drawings plus a Lawful Development Certificate

£425 drawings + £150 survey (£575 total)

Planning permission drawings (householder)

£515 drawings + £150 survey (£665 total)

Change of use drawings

£665 drawings + £150 survey (£815 total)

Building regulations drawings

£515 drawings + £150 survey (£665 total)

Structural calculations

£389

Complete package (planning, building regulations drawings and structural calculations)

£1,235 drawings + £150 survey (£1,385 total)

• Planning permission drawings
• Building regulations drawings and structural calculations

Garden rooms start at £475, rear extensions and Velux or dormer lofts at £475 drawings + £150 survey (£625 total), and a basement at £1,705 drawings + £150 survey (£1,855 total), no VAT to add. A project that needs more than one set of drawings can use a package instead, listed at the end of this page.

Garden room drawings

£475

Rear extension drawings

£475 drawings + £150 survey (£625 total)

Velux or dormer loft conversion drawings

£475 drawings + £150 survey (£625 total)

Side return extension drawings

£515 drawings + £150 survey (£665 total)

Mansard loft conversion drawings

£615 drawings + £150 survey (£765 total)

Double-storey extension drawings

£755 drawings + £150 survey (£905 total)

Wraparound extension drawings

£855 drawings + £150 survey (£1,005 total)

Basement drawings for a cellar conversion

£1,705 drawings + £150 survey (£1,855 total)

• Extension and loft conversion drawings

Garage conversion drawings start at £425 drawings + £150 survey (£575 total), floor plans at £225 and new build drawings at £1,185 drawings + £150 survey (£1,335 total), and the measured building survey costs £150, no VAT to add. The measured building survey is a separate fee that no drawing fee includes.

Garage conversion drawings

£425 drawings + £150 survey (£575 total)

HMO conversion drawings

£665 drawings + £150 survey (£815 total)

Two-flat conversion drawings

£945 drawings + £150 survey (£1,095 total)

Measured building survey

£150

Floor plans

£225

New build drawings

£1,185 drawings + £150 survey (£1,335 total)

• Garage, flat and HMO conversion drawings
• Measured building surveys and floor plans

A party wall notice is priced for each adjoining owner, so two neighbours who both need a notice come to £84, and the £42 is the fee for the notice itself. The independent review is a second opinion on drawings and specifications that someone else prepared.

Party wall notice, per adjoining owner

£42

Independent drawing and specification review

£289

• Party wall notices and independent drawing review

These jobs sit around a main drawing set: checking an address before you buy, answering a council condition, amending an approval or appealing a refusal. Each is a starting fee with no VAT to add, and the four that need a visit show the £150 survey and the total.

Planning constraints report for an address

£19

Community Infrastructure Levy forms (free inside every planning package)

£49

Pre-purchase “can I extend?” report

£185

CAD conversion of existing drawings, up to 4 sheets

£189

SAP and Part L calculations, through an accredited assessor

£225

Design and access statement on its own

£235

3D visualisation, per view

£235

Planning amendment, non-material or minor material

£285

Discharge of planning conditions, pack of up to 3

£325

Flood risk assessment for a minor householder project

£375

Householder planning appeal by written representations

£425

Fire strategy plan for an HMO or flat conversion

£425

Tree survey to BS 5837, through an arboriculturist

£445

HMO or selective licence application pack

£475

Feasibility study with two or three design options

£545

Heritage statement

£565

Construction and tender drawing package with specification

£945

Interior layout and space planning

£235 drawings + £150 survey (£385 total)

Prior approval for a larger home extension

£375 drawings + £150 survey (£525 total)

Retrospective planning application

£475 drawings + £150 survey (£625 total)

Regularisation drawings for work already done

£615 drawings + £150 survey (£765 total)

Written reports for a refusal, an enforcement letter or notice, work built without consent, a purchase with a planning question, or a change of use, each a fixed fee with no VAT to add. The refusal review and the retrospective assessment are credited in full against our follow-on work for the same property.

Planning refusal review

£180

Retrospective planning assessment

£220

Planning enforcement help

£290

Planning due diligence report

£290

Enforcement notice review

£355

Change of use feasibility report, site visit included

£535

• Planning problems: which report fits

Each package bundles drawings that belong to the same route, and each has a starting fee: we set the exact figure in your fixed fee after checking the address. Location and block plans are free inside every planning package.

Permitted development plus a Lawful Development Certificate

£425 to £755 drawings + £150 survey (£575 to £905 total)

Planning

£515 to £1,235 drawings + £150 survey (£665 to £1,385 total)

Complete (planning, building regulations drawings and structural calculations)

£1,235 to £2,465 drawings + £150 survey (£1,385 to £2,615 total)