Side extension architects in Southwark

37 architects and planning agents with side extension planning history in Southwark, ranked by how many applications they’ve filed — with their approval rate — straight from public council records.

• DP9 LtdSide extension · Extension · Basement · New dwelling · Change of use
  100 in Southwark100% approved
• TurleySide extension · Extension · Basement · Change of use · Listed building / conservation
  74 in Southwark95% approved
• DP9 LimitedRear extension · Side extension · Extension · Basement · New dwelling
  52 in Southwark100% approved
• Design Squared LtdLoft conversion · Rear extension · Side extension · Extension · Outbuilding / garden room
  38 in Southwark94% approved
• Gerald Eve LLPRear extension · Side extension · Extension · Basement · Change of use
  35 in Southwark100% approved
• Montagu Evans LLPSide extension · Extension · Basement · New dwelling · Change of use
  35 in Southwark100% approved
• ResiLoft conversion · Rear extension · Side extension · Extension · Change of use
  32 in Southwark97% approved
• The Art of Building LtdLoft conversion · Rear extension · Side extension · Extension · Roof / fenestration
  32 in Southwark100% approved
• Montagu EvansSide extension · Extension · Basement · Change of use · Listed building / conservation
  31 in Southwark100% approved
• Mittelman Associates LLPLoft conversion · Rear extension · Side extension · Extension · New dwelling
  24 in Southwark100% approved
• Resi Design LtdLoft conversion · Rear extension · Side extension · Extension · Basement
  21 in Southwark90% approved
• Michael Trentham ArchitectsLoft conversion · Rear extension · Side extension · Extension · Basement
  17 in Southwark79% approved
• Simon Whitehead ArchitectsLoft conversion · Rear extension · Side extension · Extension · Basement
  15 in Southwark80% approved
• Design TeamLoft conversion · Rear extension · Side extension · Extension · Change of use
  14 in Southwark100% approved
• DISTRICT ArchitectsLoft conversion · Rear extension · Side extension · Extension · Demolition
  14 in Southwark88% approved
• Fast PlansLoft conversion · Side extension · Extension · Roof / fenestration
  14 in Southwark100% approved
• Fixated LtdLoft conversion · Rear extension · Side extension · Extension · Basement
  14 in Southwark90% approved
• Chris Scott ArchitectsLoft conversion · Rear extension · Side extension · Extension · Outbuilding / garden room
  13 in Southwark92% approved
• Extension ArchitectureLoft conversion · Rear extension · Side extension · Extension · Basement
  13 in Southwark91% approved
• RDA LtdLoft conversion · Rear extension · Side extension · Extension · Basement
  13 in Southwark83% approved
• Studio 136 Architects LtdLoft conversion · Rear extension · Side extension · Extension · Roof / fenestration
  13 in Southwark90% approved
• Milan Babic ArchitectsSide extension · Extension · Basement
  11 in Southwark100% approved
• Content Design LimitedLoft conversion · Rear extension · Side extension · Extension · Outbuilding / garden room
  10 in Southwark100% approved
• Faithorn Farrell Timms LLPSide extension · Basement · Listed building / conservation · Roof / fenestration
  10 in Southwark100% approved
• fixated ltdLoft conversion · Rear extension · Side extension · Extension · Outbuilding / garden room
  10 in Southwark78% approved
• CraftworksSide extension · Extension · Basement · Demolition · Roof / fenestration
  9 in Southwark88% approved
• R2 Studio Architects LtdLoft conversion · Rear extension · Side extension · Extension · Outbuilding / garden room
  9 in Southwark89% approved
• AhmmSide extension · Extension · Basement · Change of use
  7 in Southwark86% approved
• KYRKE-SMITH ARCHITECTSLoft conversion · Rear extension · Side extension · Extension · Conservatory / orangery
  7 in Southwark100% approved
• MSB (Survey And Design) LimitedLoft conversion · Rear extension · Side extension · Extension · Roof / fenestration
  7 in Southwark67% approved
• The Gentleman Architect LtdLoft conversion · Rear extension · Side extension · Extension · Roof / fenestration
  7 in Southwark86% approved
• Green Tea ArchitectsLoft conversion · Rear extension · Side extension · Extension · Change of use
  6 in Southwark100% approved
• Home TalesLoft conversion · Rear extension · Side extension · Extension · New dwelling
  6 in Southwark100% approved
• KN DESIGNSLoft conversion · Rear extension · Side extension · Extension · Outbuilding / garden room
  6 in Southwark100% approved
• Kyrke-Smith ArchitectsLoft conversion · Rear extension · Side extension · Extension · Change of use
  6 in Southwark60% approved
• MoreSpaceLoft conversion · Rear extension · Side extension · Extension
  5 in Southwark100% approved
• Oakman Architecture LtdLoft conversion · Rear extension · Side extension · Extension · Roof / fenestration
  5 in Southwark75% approved

Based on public planning-application records. Volume and approval rate reflect filed applications, not a quality judgement — always confirm credentials and references before you hire.