Understanding planning · 13 min read
Planning application documents: what to read first
Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.
Council planning record
Washington House 40 - 41 Conduit Street London W1S 2YQ
Last published check: 14 Sept 2026, 17:04. Check the council record for more recent changes.
Washington House 40 - 41 Conduit Street London W1S 2YQ
This record has no verified map location.
View council mapUse of part basement and part ground floor as dual alternative restaurant or retail (Class E) and use of part basement ground and first to sixth floors as offices (Class E), provisions for cycle storage, refuse and servicing at mezzanine level; demolition of existing roof level plant area; various extensions to the building including rear infill extension at mezzanine level, rear extension at 4th and 5th floor levels, front side and rear extensions to the 6th floor level, construction of a 7th storey extension all to provide additional office (Class E) floorspace; replacement of the rear curtain wall facade at mezzanine to 3rd floor levels; the replacement of plant within an acoustic enclosure at roof level; reconfiguration of the ground floor Conduit Street frontage and other associated development.
Sign in to view all collected council fields and recorded changes.
Sign in to view collected details| Document | Published | Action |
|---|---|---|
| ACK-GENERAL LETTER (G/P/C)Background Papers · PDF | 28 Aug 2026 | View |
| CNSLT-LA SOCIETYBackground Papers · PDF | 28 Aug 2026 | View |
| CNSLT-LA SOCIETYBackground Papers · PDF | 28 Aug 2026 | View |
| CNSLT-LA SOCIETYBackground Papers · PDF | 28 Aug 2026 | View |
| ECNSLT-INTERNAL CONSULTSBackground Papers · PDF | 28 Aug 2026 | View |
| ECNSLT-INTERNAL CONSULTSBackground Papers · PDF | 28 Aug 2026 | View |
| SITE NOTICE 21 OR 28 DAYS IF T&C APPL.Background Papers · PDF | 28 Aug 2026 | View |
| NEIGHBOUR NOTIFICATION LETTER (21D)Background Papers · PDF | 28 Aug 2026 | View |
| RECEIPT OF APPLICATIONOther · PDF | 26 Aug 2026 | View |
| APPLICATIONFORMREDACTEDApplication Form · PDF | 21 Aug 2026 | View |
| DAYLIGHT AND SUNLIGHT REPORTDaylight and Sunlight assessment · PDF | 21 Aug 2026 | View |
| DELIVERY AND SERVICING PLANBackground Papers · PDF | 21 Aug 2026 | View |
| HERITAGE STATEMENTHeritage Statement · PDF | 21 Aug 2026 | View |
| NOISE ASSESSMENT REPORTNoise impact assessment · PDF | 21 Aug 2026 | View |
| SUSTAINABLE DESIGN STATEMENTSustainability appraisal · PDF | 21 Aug 2026 | View |
| TRANSPORT STATEMENTTransport assessment · PDF | 21 Aug 2026 | View |
| 073_WH_WS PLANNING DAS_PART1Design and Access Statement · PDF | 21 Aug 2026 | View |
| 073_WH_WS PLANNING DAS_PART2Design and Access Statement · PDF | 21 Aug 2026 | View |
| 073_WH_WS PLANNING DAS_PART3Design and Access Statement · PDF | 21 Aug 2026 | View |
| 073_WH_WS PLANNING DAS_PART4Design and Access Statement · PDF | 21 Aug 2026 | View |
| 073_WH_WS PLANNING DAS_PART5Design and Access Statement · PDF | 21 Aug 2026 | View |
| 073_WH_WS PLANNING DAS_PART6Design and Access Statement · PDF | 21 Aug 2026 | View |
| 073_WH_WS PLANNING DAS_PART7Design and Access Statement · PDF | 21 Aug 2026 | View |
| 073_WH_WS PLANNING DAS_PART8Design and Access Statement · PDF | 21 Aug 2026 | View |
| 073_WH_WS PLANNING DAS_PART9Design and Access Statement · PDF | 21 Aug 2026 | View |
| 073_WH_WS PLANNING DAS_PART10Design and Access Statement · PDF | 21 Aug 2026 | View |
| 073_WH_WS PLANNING DAS_PART11Design and Access Statement · PDF | 21 Aug 2026 | View |
| 073_WH_WS PLANNING DAS_PART12Design and Access Statement · PDF | 21 Aug 2026 | View |
| 073_WH_WS PLANNING DAS_PART13Design and Access Statement · PDF | 21 Aug 2026 | View |
| PLANNING STATEMENTBackground Papers · PDF | 21 Aug 2026 | View |
| EXISTING AND PROPOSED DRAWINGSDrawing · PDF | 21 Aug 2026 | View |
| SITE LOCATION PLANLocation Plan · PDF | 21 Aug 2026 | View |
Documents open on the council website. Browse council documents if a link has changed.
Council milestones and published deadlines. A deadline passing does not confirm a decision.
A published target or deadline. It does not confirm an outcome.
Council sourceA published target or deadline. It does not confirm an outcome.
Council sourceA published target or deadline. It does not confirm an outcome.
Council sourceWe haven’t collected any decision conditions for this application.
Understanding planning · 13 min read
Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.
Understanding planning · 13 min read
Understand pending consideration, approved, refused and withdrawn planning applications. Compare status labels and find the documents explaining each outcome.
Understanding planning · 13 min read
Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.