Converting existing Lean-to to Extension

October 22, 2020 by Nick in forum Planning Forum

#847 Nick, 22 October 2020, 11:05

Our house has existing 4x3.5m extension (pitched rood) plus a lean-to 1.7x3.5m (with polycarbonate roof) on the right side. I would like to knock-off the wall between lean-to and current extension and convert lean-to in main habitable area. We plan to use part of new extension as dinning and also install downstairs WC/Shorwer room.

The lean-to is adjoining to neighbours wall. There is no increase in the exiting building area but only conversion of the lean-to into habitable area. Do I need planning permission and building regs or just the latter?

#848 Damian, 23 October 2020, 20:43

Assuming the existing lean-to is a unheated space, then to make it habitable would only normally require BR’s.

#1427 Paul steward, 29 November 2022, 11:41

Lean to at the side of kitchen 4m x 3m want to convert Lean to area by putting doors and a wall at the side currently a fence divides us from neighbour.also put a roof on slope or flat making a summer room or current patio doors removed and extend living room.Would we need foundations current quote 6000 for foundations.for doors one wall and a roof.

#1430 Damian, 30 November 2022, 20:47

As you’ll be making the space/room habitable, it’ll need to meet Building Regulations and would therefore require foundations.

Depending on its size and position, it may also require Planning.

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