Costs by borough
Extension and loft costs by London borough
Typical all-in totals for a rear extension, side-return extension, loft conversion in every London borough, from the same engine that prices our report. Pick your borough.
01
Pick your borough
32 boroughs- Barking and DagenhamHouse extension · Side-return extension · Loft conversion
- BarnetHouse extension · Side-return extension · Loft conversion
- BexleyHouse extension · Side-return extension · Loft conversion
- BrentHouse extension · Side-return extension · Loft conversion
- BromleyHouse extension · Side-return extension · Loft conversion
- CamdenHouse extension · Side-return extension · Loft conversion
- CroydonHouse extension · Side-return extension · Loft conversion
- EalingHouse extension · Side-return extension · Loft conversion
- EnfieldHouse extension · Side-return extension · Loft conversion
- GreenwichHouse extension · Side-return extension · Loft conversion
- HackneyHouse extension · Side-return extension · Loft conversion
- Hammersmith and FulhamHouse extension · Side-return extension · Loft conversion
- HaringeyHouse extension · Side-return extension · Loft conversion
- HarrowHouse extension · Side-return extension · Loft conversion
- HaveringHouse extension · Side-return extension · Loft conversion
- HillingdonHouse extension · Side-return extension · Loft conversion
- HounslowHouse extension · Side-return extension · Loft conversion
- IslingtonHouse extension · Side-return extension · Loft conversion
- Kensington and ChelseaHouse extension · Side-return extension · Loft conversion
- Kingston upon ThamesHouse extension · Side-return extension · Loft conversion
- LambethHouse extension · Side-return extension · Loft conversion
- LewishamHouse extension · Side-return extension · Loft conversion
- MertonHouse extension · Side-return extension · Loft conversion
- NewhamHouse extension · Side-return extension · Loft conversion
- RedbridgeHouse extension · Side-return extension · Loft conversion
- Richmond upon ThamesHouse extension · Side-return extension · Loft conversion
- SouthwarkHouse extension · Side-return extension · Loft conversion
- SuttonHouse extension · Side-return extension · Loft conversion
- Tower HamletsHouse extension · Side-return extension · Loft conversion
- Waltham ForestHouse extension · Side-return extension · Loft conversion
- WandsworthHouse extension · Side-return extension · Loft conversion
- WestminsterHouse extension · Side-return extension · Loft conversion
This report is an informed estimate built from public data about your property and current London build costs. It is not a survey, a quote, a valuation or planning advice. Always get written quotes and, where noted, professional advice before committing to work.