Loft main dormer and loft roof terrace
Camden
· Terrace
· 2024
£80k
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
Barnet
· Terrace
· 2023
£78k
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 outrigger dormer
Haringey
· Terrace
· 2024
£51k
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
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.
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
Enfield
· Terrace
· 2024
£102k
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
Waltham Forest
· Flat
· 2023
£81k
Excl VAT
Loft main dormer
Newham
· End Of Terrace
· 2023
£71k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft hip to gable with main dormer
Brent
· Semi Detached
· 2024
£95k
Excl VAT
Loft L shaped dormer
Waltham Forest
· Flat
· 2024
£89k
Excl VAT
Loft roof terrace
Southwark
· Flat
· 2025
£29k
Excl VAT
Loft L shaped dormer
Southwark
· Terrace
· 2024
£102k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft main dormer
Southwark
· Terrace
· 2024
£54k
Excl VAT
Loft L shaped dormer
Southwark
· Terrace
· 2024
£89k
Excl VAT
Loft main dormer
Ealing
· Terrace
· 2022
£84k
Excl VAT
Loft L shaped dormer
Southwark
· End Of Terrace
· 2023
£73k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft hip to gable with main dormer
Southwark
· Semi Detached
· 2022
£75k
Excl VAT
Loft L shaped dormer and loft roof terrace
Wandsworth
· Flat
· 2023
£91k
Excl VAT
Loft main dormer
Wandsworth
· Terrace
· 2024
£101k
Excl VAT
Loft main dormer
Lambeth
· Terrace
· 2023
£59k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft hip to gable with main dormer
Greenwich
· Semi Detached
· 2024
£69k
Excl VAT
Loft hip to gable with main dormer
Greenwich
· Terrace
· 2024
£108k
Excl VAT
Loft main dormer
Wandsworth
· Terrace
· 2022
£69k
Excl VAT
Loft L shaped dormer
Lambeth
· Terrace
· 2024
£135k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft main dormer
Lewisham
· Terrace
· 2023
£110k
Excl VAT
Loft main dormer
Lewisham
· Terrace
· 2024
£55k
Excl VAT
Loft outrigger dormer
Merton
· Detached
· 2023
£52k
Excl VAT
Loft main dormer
Merton
· Terrace
· 2022
£61k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft L shaped dormer
Richmond upon Thames
· Terrace
· 2024
£75k
Excl VAT
Loft main dormer
Greenwich
· Terrace
· 2023
£66k
Excl VAT
Loft main dormer
Hillingdon
· Semi Detached
· 2024
£89k
Excl VAT
Loft L shaped dormer
Croydon
· Terrace
· 2023
£92k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft main dormer
Kingston upon Thames
· Semi Detached
· 2022
£89k
Excl VAT
Loft main dormer
Kingston upon Thames
· Terrace
· 2025
£71k
Excl VAT
Loft L shaped dormer
Kingston upon Thames
· Semi Detached
· 2024
£80k
Excl VAT
Loft L shaped dormer
Sutton
· Terrace
· 2022
£73k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft main dormer
Bromley
· Terrace
· 2024
£153k
Excl VAT
Loft main dormer
Bromley
· Semi Detached
· 2024
£87k
Excl VAT
Loft hip to gable with main dormer
Bromley
· Bungalow
· 2024
£98k
Excl VAT
Loft main dormer
Dartford
· End Of Terrace
· 2023
£91k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft main dormer
Runnymede
· Bungalow
· 2025
£110k
Excl VAT
Loft main dormer
Worthing
· Semi Detached
· 2024
£97k
Excl VAT
Loft main dormer and internal alterations
Islington
· Terrace
· 2022
£92k
Excl VAT
Loft main dormer and ground floor rear
Haringey
· Terrace
· 2024
£257k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft main dormer and ground floor rear
Haringey
· Terrace
· 2024
£279k
Excl VAT
Ground floor rear and loft hip to gable with main dormer
Haringey
· Semi Detached
· 2023
£159k
Excl VAT
Loft L shaped dormer and ground floor wraparound
Haringey
· Terrace
· 2023
£157k
Excl VAT
Loft hip to gable with main dormer and internal alterations
Barnet
· Semi Detached
· 2022
£132k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
