Loft L shaped dormer
Brent
· Terrace
· 2022
£96k
Excl VAT
Average build cost for a loft extension is £80k - £100k
Build cost
£80k - £100k
The average cost of a project in the last 2 years.
Value-add
9-11%
The average value uplift of a project in the last 2 years.
Project length
8-9 months
The average time taken to complete a project in the last 2 years.
Planning approval
77%
The average approval rate of projects in the last 2 years.
Time to approval
66 days
The average number of days taken to approve a project in the last 2 years.
Number approved
51,265
The number of applications approved in the last 2 years.
Loft L shaped dormer and internal alterations
Brent
· Semi Detached
· 2023
£104k
Excl VAT
Average build cost for a loft extension is £80k - £100k
Build cost
£80k - £100k
The average cost of a project in the last 2 years.
Value-add
9-11%
The average value uplift of a project in the last 2 years.
Project length
8-9 months
The average time taken to complete a project in the last 2 years.
Planning approval
77%
The average approval rate of projects in the last 2 years.
Time to approval
66 days
The average number of days taken to approve a project in the last 2 years.
Number approved
51,265
The number of applications approved in the last 2 years.
Loft main dormer
Camden
· Flat
· 2023
£61k
Excl VAT
Average build cost for a loft extension is £80k - £100k
Build cost
£80k - £100k
The average cost of a project in the last 2 years.
Value-add
9-11%
The average value uplift of a project in the last 2 years.
Project length
8-9 months
The average time taken to complete a project in the last 2 years.
Planning approval
77%
The average approval rate of projects in the last 2 years.
Time to approval
66 days
The average number of days taken to approve a project in the last 2 years.
Number approved
51,265
The number of applications approved in the last 2 years.
Loft main dormer and loft roof terrace
Camden
· Terrace
· 2024
£80k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Average build cost for a loft extension is £80k - £100k
Build cost
£80k - £100k
The average cost of a project in the last 2 years.
Value-add
9-11%
The average value uplift of a project in the last 2 years.
Project length
8-9 months
The average time taken to complete a project in the last 2 years.
Planning approval
77%
The average approval rate of projects in the last 2 years.
Time to approval
66 days
The average number of days taken to approve a project in the last 2 years.
Number approved
51,265
The number of applications approved in the last 2 years.
Ground floor side infill and Loft L shaped dormer
Ealing
· Terrace
· 2024
£296k
Excl VAT
Average build cost for a loft extension is £80k - £100k
Build cost
£80k - £100k
The average cost of a project in the last 2 years.
Value-add
9-11%
The average value uplift of a project in the last 2 years.
Project length
8-9 months
The average time taken to complete a project in the last 2 years.
Planning approval
77%
The average approval rate of projects in the last 2 years.
Time to approval
66 days
The average number of days taken to approve a project in the last 2 years.
Number approved
51,265
The number of applications approved in the last 2 years.
Loft hip to gable with main dormer and internal alterations
Brent
· Semi Detached
· 2023
£132k
Excl VAT
Average build cost for a loft extension is £80k - £100k
Build cost
£80k - £100k
The average cost of a project in the last 2 years.
Value-add
9-11%
The average value uplift of a project in the last 2 years.
Project length
8-9 months
The average time taken to complete a project in the last 2 years.
Planning approval
77%
The average approval rate of projects in the last 2 years.
Time to approval
66 days
The average number of days taken to approve a project in the last 2 years.
Number approved
51,265
The number of applications approved in the last 2 years.
Loft L shaped dormer and ground floor wraparound
Ealing
· Terrace
· 2022
£158k
Excl VAT
Loft L shaped dormer, ground floor wraparound & internal alterations
Hammersmith and Fulham
· Terrace
· 2024
£206k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft main dormer and internal alterations
Islington
· Terrace
· 2022
£92k
Excl VAT
Loft hip to gable with main dormer
Brent
· Semi Detached
· 2024
£95k
Excl VAT
Loft main dormer
Ealing
· Terrace
· 2022
£84k
Excl VAT
Loft main dormer and ground floor side infill
Ealing
· Terrace
· 2022
£150k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft main dormer
Barnet
· Terrace
· 2023
£78k
Excl VAT
Ground floor side infill and Loft L shaped dormer
Wandsworth
· Terrace
· 2023
£210k
Excl VAT
Loft main dormer and internal alterations
Hounslow
· Terrace
· 2024
£105k
Excl VAT
Loft main dormer and ground floor rear
Wandsworth
· Terrace
· 2024
£73k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft main dormer and ground floor rear
Haringey
· Terrace
· 2024
£257k
Excl VAT
Ground floor side infill and Loft L shaped dormer
Wandsworth
· Terrace
· 2024
£185k
Excl VAT
Ground floor rear and loft hip to gable with main dormer
Ealing
· End Of Terrace
· 2024
£85k
Excl VAT
Loft main dormer and ground floor rear
Haringey
· Terrace
· 2024
£279k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft main dormer and ground floor wraparound
Lambeth
· Terrace
· 2023
£176k
Excl VAT
Loft main dormer, ground floor rear & internal alterations
Lambeth
· Terrace
· 2024
£237k
Excl VAT
Loft hip to gable with main dormer, internal alterations, ground floor wraparound, first floor rear & first floor side
Ealing
· Detached
· 2024
£385k
Excl VAT
Ground floor side infill and Loft L shaped dormer
Wandsworth
· Terrace
· 2022
£263k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft main dormer and ground floor side infill
Lambeth
· Terrace
· 2023
£153k
Excl VAT
Loft outrigger dormer
Haringey
· Terrace
· 2024
£51k
Excl VAT
Loft main dormer and ground floor rear
Harrow
· Terrace
· 2021
£193k
Excl VAT
Ground floor rear and loft hip to gable with main dormer
Haringey
· Semi Detached
· 2023
£159k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft roof terrace
Southwark
· Flat
· 2025
£29k
Excl VAT
Internal alterations, Loft L shaped dormer, ground floor wraparound, internal alterations & facade alterations
Lambeth
· Terrace
· 2024
£346k
Excl VAT
Ground floor side infill, internal alterations & Loft L shaped dormer
Wandsworth
· Terrace
· 2024
£154k
Excl VAT
Loft main dormer and ground floor side infill
Wandsworth
· Terrace
· 2023
£187k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft main dormer
Wandsworth
· Terrace
· 2024
£101k
Excl VAT
Loft L shaped dormer and loft roof terrace
Wandsworth
· Flat
· 2023
£91k
Excl VAT
Loft L shaped dormer, ground floor wraparound & facade alterations
Merton
· Terrace
· 2022
£262k
Excl VAT
Loft main dormer and internal alterations
Wandsworth
· Terrace
· 2022
£119k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Ground floor side infill and Loft L shaped dormer
Wandsworth
· Terrace
· 2023
£167k
Excl VAT
Loft main dormer and ground floor rear
Wandsworth
· Terrace
· 2023
£164k
Excl VAT
Loft L shaped dormer and ground floor wraparound
Haringey
· Terrace
· 2023
£157k
Excl VAT
Loft L shaped dormer
Southwark
· Terrace
· 2024
£102k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft main dormer and internal alterations
Southwark
· Semi Detached
· 2024
£136k
Excl VAT
Loft main dormer
Wandsworth
· Terrace
· 2022
£69k
Excl VAT
Loft main dormer and ground floor rear
Merton
· Terrace
· 2024
£221k
Excl VAT
Loft L shaped dormer
Richmond upon Thames
· Terrace
· 2024
£75k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft outrigger dormer and internal alterations
Lambeth
· Terrace
· 2023
£124k
Excl VAT
Loft outrigger dormer and internal alterations
Southwark
· Terrace
· 2022
£177k
Excl VAT
Ground floor side infill, Loft L shaped dormer & first floor rear
Merton
· Terrace
· 2024
£283k
Excl VAT
Loft main dormer and ground floor wraparound
Southwark
· Terrace
· 2023
£165k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
