Extensions and permitted development
Discussion
We have a terrible conservatory at the back of the house which needs to go, I suppose long and short of it.
I believe footings are a metre deep, previous owner ran out of money, fitted conservatory.
My understanding of the regs is that no more than 3m from original house out into the garden, which the conservatory is.
Must be within 7 metres of rear boundary from the end of the conservatory (10m from original house wall to boundary line)
Those two I fall into quite happily under permitted development.
If my footings are a metre deep, I know the slab is solid (will core sample anyway for true depth), is it just a case then of building a block wall upwards (plan to go just below eaves)m flat roof, job jobbed, Is there anything I would fall fowl on? I think I have read that I would need frosted glass on the new windows upstairs?
I believe footings are a metre deep, previous owner ran out of money, fitted conservatory.
My understanding of the regs is that no more than 3m from original house out into the garden, which the conservatory is.
Must be within 7 metres of rear boundary from the end of the conservatory (10m from original house wall to boundary line)
Those two I fall into quite happily under permitted development.
If my footings are a metre deep, I know the slab is solid (will core sample anyway for true depth), is it just a case then of building a block wall upwards (plan to go just below eaves)m flat roof, job jobbed, Is there anything I would fall fowl on? I think I have read that I would need frosted glass on the new windows upstairs?
smokey mow said:
Little Lofty said:
For a two story extension you will need planning permission and building regs, PD only covers up to 4m high.
You can do a 2-storey extension under PD, subject to meeting the relevant criteria.GasEngineer said:
Little Lofty said:
My bad, I thought max height for PD was 4m, so that would rule out 2 story.
You're right though LL. It's 4m if the existing house is detached and 3m for semis, terraces etc.https://assets.publishing.service.gov.uk/media/5d7...
https://www.fmb.org.uk/find-a-builder/ultimate-gui...
TA14 said:
GasEngineer said:
Little Lofty said:
My bad, I thought max height for PD was 4m, so that would rule out 2 story.
You're right though LL. It's 4m if the existing house is detached and 3m for semis, terraces etc.https://assets.publishing.service.gov.uk/media/5d7...
https://www.fmb.org.uk/find-a-builder/ultimate-gui...
Website said:
Maximum height:
The height of the roof ridge and eaves can’t exceed the height of the ridge and eaves on the original house. Any part of the roof falling within 2 metres of your neighbours’ boundaries must be a maximum height of 3 metres.
I was planning to come just below the original eaves, which I think I am ok there with, but I fall down on the last part, but going on the government pageThe height of the roof ridge and eaves can’t exceed the height of the ridge and eaves on the original house. Any part of the roof falling within 2 metres of your neighbours’ boundaries must be a maximum height of 3 metres.
Website said:
Householders wishing to build a larger extension have to notify the local planning authority
about the proposed extension and the local planning authority must give adjoining
neighbours notice of the proposals and the opportunity to object. Works cannot commence
until the local planning authority notifies the householder that no prior approval is required,
or gives prior approval, or 42 days have passed without any decision by the local planning
authority.
Now I make that, if I want to go up to the height I want to then I don't need planning permission, but I do need to inform planning who will do a consultation with the neighbours (which is fair enough), I only have 3 neighbours that would be affected by it, one left, one right and one behind, I do get on witht them all, and that I can't (potentially) do a flat roof as it must match the original roof, but I do have a dorma conversion in the attic already, so maybe I could get away with flat roof?about the proposed extension and the local planning authority must give adjoining
neighbours notice of the proposals and the opportunity to object. Works cannot commence
until the local planning authority notifies the householder that no prior approval is required,
or gives prior approval, or 42 days have passed without any decision by the local planning
authority.
As an architect we deal with both PD and conventional planning applications (central London). When considering the PD path its very much a question of how closely a PD solution will fit your requirements. In many case PD is often the only solution as similar development would not be permissible under traditional planning laws.
Generally, and perhaps at odds with some comments here, if you can make a PD extension solution suit you then go for it. But if its only the apparent simplification of the process that attracts you (rather than the merits of the design itself) then perhaps consider a more tailored solution that may require planning consent.
Generally, and perhaps at odds with some comments here, if you can make a PD extension solution suit you then go for it. But if its only the apparent simplification of the process that attracts you (rather than the merits of the design itself) then perhaps consider a more tailored solution that may require planning consent.
Along the same lines as the above post of can also get you planning for something they would normally decline under policy.
You put in a pd application( cert lawful use ) at the same time as planning.
The planning application highlights that the pd application is the fallback.
This can be used in 2 ways
A. You want ( numbers made up ) 4.5m, pd gives you 4m but planning policy would give you 3m. On th basis your fallback already beaches local policy they may agree to your 4.5m
B. Pd can allow some outlandish creations. You make the pd version so unpalatable that the application you ran approved which is outside policy is a relief to all concerned so it is approved.
You put in a pd application( cert lawful use ) at the same time as planning.
The planning application highlights that the pd application is the fallback.
This can be used in 2 ways
A. You want ( numbers made up ) 4.5m, pd gives you 4m but planning policy would give you 3m. On th basis your fallback already beaches local policy they may agree to your 4.5m
B. Pd can allow some outlandish creations. You make the pd version so unpalatable that the application you ran approved which is outside policy is a relief to all concerned so it is approved.
Well after discussing it with the wife and the plans and that realistically it would need planning permission, also looking at the other houses around here all have done single storey PD builds on the back, I think it is unlikely we would get a double on the back, costing it all up, spending hours going through it all and explaining it to her I got the answer
"I want a new kitchen and utility room first"
Which of course, what she actually means is, we are going to remortgage the house (which we would have done anyway), putting a single story side extension on for utility and mud room, new windows front and rear, moving the boiler, putting in a downstairs toilet which I am not sure how I am going to fit in, as it's only going to be 2 metres wide (I want to get my motorbike through to the back garden), maybe just an outhouse for her then :thinking: .
Bright side, it is bloody cheaper and would free up loads of space, I get a mud room and places to store stuff, freeing up the shed, no more replacing fence panels or painting them (for the most part), I would just need move two fresh water drains, which is a pain but not the end of the world at the rear of the house, because the houses in our street are all semi detached, but one side does soil and vent pipes, the other side does fresh water and gutters, genuinely never noticed till a neighbour pointed it out.
"I want a new kitchen and utility room first"
Which of course, what she actually means is, we are going to remortgage the house (which we would have done anyway), putting a single story side extension on for utility and mud room, new windows front and rear, moving the boiler, putting in a downstairs toilet which I am not sure how I am going to fit in, as it's only going to be 2 metres wide (I want to get my motorbike through to the back garden), maybe just an outhouse for her then :thinking: .
Bright side, it is bloody cheaper and would free up loads of space, I get a mud room and places to store stuff, freeing up the shed, no more replacing fence panels or painting them (for the most part), I would just need move two fresh water drains, which is a pain but not the end of the world at the rear of the house, because the houses in our street are all semi detached, but one side does soil and vent pipes, the other side does fresh water and gutters, genuinely never noticed till a neighbour pointed it out.
TA14 said:
Think carefully about what you want long term. To remove a ground floor roof and move it up 2.5m ish is expensive compared to simply building another 2.5m of masonry now.
Rear isn't on the books anymore as such, the new plan is side extension and at the rear I will check foundations, if they are good enough, which I believe they are as one wall is all brick to 3m height, I will knock the conservatory off, put a wall up on the left hand side and bifold doors on the back with and utilise what is already there for a pitched roof as all the angles and dangles are there with the conservatory Gassing Station | Homes, Gardens and DIY | Top of Page | What's New | My Stuff