Ground floor side infill and Loft L shaped dormer
Wandsworth
· Terrace
· 2022
£263k
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 ground floor wraparound
Lambeth
· Terrace
· 2023
£176k
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, ground floor rear & internal alterations
Lambeth
· Terrace
· 2024
£237k
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 ground floor side infill
Lambeth
· Terrace
· 2023
£153k
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.
Internal alterations, Loft L shaped dormer, ground floor wraparound, internal alterations & facade alterations
Lambeth
· Terrace
· 2024
£346k
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 ground floor side infill
Wandsworth
· Terrace
· 2023
£187k
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 loft roof terrace
Wandsworth
· Flat
· 2023
£91k
Excl VAT
Loft outrigger dormer and internal alterations
Lambeth
· Terrace
· 2023
£124k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Ground floor side infill, internal alterations & Loft L shaped dormer
Wandsworth
· Terrace
· 2024
£154k
Excl VAT
Loft main dormer
Wandsworth
· Terrace
· 2024
£101k
Excl VAT
Loft main dormer and ground floor rear
Wandsworth
· Terrace
· 2024
£73k
Excl VAT
Ground floor side infill and Loft L shaped dormer
Wandsworth
· Terrace
· 2023
£210k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft main dormer
Lambeth
· Terrace
· 2023
£59k
Excl VAT
Loft main dormer and ground floor rear
Wandsworth
· Terrace
· 2023
£164k
Excl VAT
Loft main dormer
Wandsworth
· Terrace
· 2022
£69k
Excl VAT
Ground floor side infill and Loft L shaped dormer
Wandsworth
· Terrace
· 2023
£167k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft L shaped dormer and ground floor wraparound
Wandsworth
· Terrace
· 2023
£214k
Excl VAT
Loft L shaped dormer
Lambeth
· Terrace
· 2024
£135k
Excl VAT
Loft main dormer and ground floor rear
Lambeth
· Terrace
· 2022
£150k
Excl VAT
Loft main dormer and internal alterations
Wandsworth
· Terrace
· 2022
£119k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft L shaped dormer and ground floor wraparound
Lambeth
· Terrace
· 2023
£154k
Excl VAT
Ground floor side infill, ground floor side, internal alterations & Loft L shaped dormer
Lambeth
· Semi Detached
· 2022
£202k
Excl VAT
Loft L shaped dormer, ground floor wraparound & internal alterations
Hammersmith and Fulham
· Terrace
· 2024
£206k
Excl VAT
Loft main dormer and internal alterations
Southwark
· Semi Detached
· 2024
£136k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Ground floor side infill and Loft L shaped dormer
Wandsworth
· Terrace
· 2024
£185k
Excl VAT
Loft L shaped dormer
Southwark
· Terrace
· 2024
£102k
Excl VAT
Loft main dormer and ground floor rear
Merton
· Terrace
· 2024
£221k
Excl VAT
Loft main dormer and ground floor wraparound
Southwark
· Terrace
· 2024
£204k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft L shaped dormer, ground floor wraparound & facade alterations
Merton
· Terrace
· 2022
£262k
Excl VAT
Loft L shaped dormer and ground floor wraparound
Merton
· Semi Detached
· 2023
£191k
Excl VAT
Loft L shaped dormer
Southwark
· Terrace
· 2024
£89k
Excl VAT
Loft hip to gable with main dormer
Southwark
· Semi Detached
· 2022
£75k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft outrigger dormer and internal alterations
Southwark
· Terrace
· 2022
£177k
Excl VAT
Loft main dormer
Merton
· Terrace
· 2022
£61k
Excl VAT
Loft roof terrace
Southwark
· Flat
· 2025
£29k
Excl VAT
Loft main dormer and ground floor wraparound
Southwark
· Terrace
· 2023
£165k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Loft L shaped dormer
Southwark
· End Of Terrace
· 2023
£73k
Excl VAT
Ground floor rear and internal alterations
Croydon
· Terrace
· 2024
£109k
Excl VAT
Ground floor side infill, Loft L shaped dormer & first floor rear
Merton
· Terrace
· 2024
£283k
Excl VAT
Loft main dormer
Southwark
· Terrace
· 2024
£54k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Internal alterations, Loft L shaped dormer & first floor balcony
Lewisham
· Terrace
· 2023
£75k
Excl VAT
Ground floor rear, loft hip to gable with main dormer & ground floor front
Merton
· Semi Detached
· 2022
£186k
Excl VAT
Loft main dormer and ground floor rear
Merton
· End Of Terrace
· 2024
£134k
Excl VAT
Loft outrigger dormer
Merton
· Detached
· 2023
£52k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
Internal alterations and Loft L shaped dormer
Lewisham
· Terrace
· 2024
£134k
Excl VAT
Loft main dormer
Lewisham
· Terrace
· 2023
£110k
Excl VAT
Loft L shaped dormer
Croydon
· Terrace
· 2023
£92k
Excl VAT
Ground floor rear, loft hip to gable with main dormer, garage conversion & facade alterations
Bromley
· Detached
· 2023
£216k
Excl VAT
AI images
Images are AI-generated for homeowner privacy
