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Advice on single storey extension
Morning all, we are hopefully looking to have an extension in early 2026 – I know it feels like a long way away but I want know it takes a long time to get architects and planning done and most importantly a decent builder these days, we’ve been victim to cowboys twice in as many years
We are in a 1930s end of terrace, 3 bed and I was wondering are we allowed to extend creating a double extension or would it just be a single that we are allowed.
If we are allowed a double could it be all the way along or just at the half where the neighbour isn’t attached – we wouldn’t be doing a side return too as there is only a metre or so at the side and it wouldn’t be worth it.
What are the rules on light and angles for neighbours these days please, I find the info online quite confusing
If it is just a single story how far am I allowed to go out, we’ve got a long garden so space wise that wouldn’t be an issue.
We have already configured the downstairs to create a larger open plan kitchen which differs to the original floor plan below, the conservatory is old and moldy so we can’t wait to get rid of that!
Many thanks in advance.
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5 Replies
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The answers you need are dependant on so many other things. I’d suggest getting in touch with some well recommended local architects and have the free initial consultations. They’ll give you an idea of what’s achievable, timescales, very approximate costs etc.
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I looked at this to start when looking for my renovations
https://www.planningportal.co.uk
planningportal.co.uk
Apply online for planning permission or make a building control application through Planning Portal. Find planning and building guidance.
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That makes sense sorry I have no knowledge of this at all!
I’ll get in touch with an architect, I guess it is finding one who is reputable in SE London
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it IS confusing! For what you’re talking about you’ll need the following; an architect, a structural engineer, planning permission and building control, plus possible surveys regarding drainage, asbestos, possibly other specialist stuff if needed. Probably not a party wall agreement. Oh, and the trades of course, as if it’s that easy! You’ve done right to start early, it takes time to read and absorb all the info, make your plan and put it into practice. You can find all of the above yourself, or an architect can do some/all of it for you, depending on what they offer. Best of luck!
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looking at a RIBA approved architect as a start does give you more security as they are more accountable to undertake work. I honestly believe we think professionals cost and then you should see what an amateur can cost in the long run. You can also book (small cost) an initial planning advice meeting with the planning department which is a great way of talking them through what you would like to know what you can and cannot do.
I also would really explore whether bigger is better and are you better really upgrading the space rather than expanding. Cost per sqf is becoming more questionable in terms of extending. It can actually be more economical not to extend so much but really elevate materials, finishes, the bones, insulation, performance of the home as a whole. Something to provide some food for thought.
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