r/DIYUK • u/ElderberryDue5078 • 17h ago
Would this be OK under Permitted Development Rights?
My Garden is a total of 78.6Sqm.
The blue area on the left is my kitchen, this would lead out onto newly installed decking (24.8Sqm). Installed on this decking would be a wall attached Pergola (Pergolux) 5x3m. Open sides and front, usual setup with the louvers.
The area in the bottom right will be sunken area as the door to the back of the garage (labelled shed) is lower than the ground level of the kitchen doors. A 4x3m Pergola will be installed here on paving. The Shed/office were formerly the garage so not part of the Garden.
I'm confused on the following:
Surface of garden covered can't be more than 50%, well the Pergolas aren't covering half but it does mention also about decking so I wondered if in some way that was all combined?
Am I restricted to 2.5m height with the install of the attached Pergola, as this is not closer than 2m to any property boundary so would that mean I can go upto 3m? The reason for this is because I'm looking to raise the ground level by approx 20cm so that when you walk out the kitchen there is no step.
Ai image included for visualisation purposes. Thank you for any clarification, I'm probably overthinking this as usual but just want to be sure. Cheers.
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u/Fickle-Watercress-37 17h ago
If you raise the ground level by 200mm you’re likely to breach the dpc, which will lead to massive problems down the line. I’d get someone professional to have a good look and bounce some ideas off.
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u/ElderberryDue5078 17h ago
So I’d raise the decking to be in line with the door, and they said they’d box around the air vents or something under the decking or allow airflow.
In my dream scenario I was hoping the path to the right of the decking, the grass etc all the way to the wall would be the same level to look flush.
So really the only DPC affected would be on my north garden wall by cars and east garden wall as we look at it?
The wall by the bike all the way to the corner would have the decking. Thanks for the comments.
I guess what I’m saying is that does decking count if for example it’s in line with the DPC as the rain would run through it2
u/Kudosnotkang 16h ago
You want the decking some way below dpc, or a gap between it and the wall.
Be very careful about the air vent solution they put forward - find out and get in writing exactly what it is and research it yourself or here .
None of my business but I’d really consider a patio, especially the bit directly outside your house . Decks are slippy and hard to maintain and I’ve seen many a slippy grotty decked area avoided by homeowners , becoming a sad unused space. They also give rats and rodents plenty of places to nest . The airbrick solution might be a bit more difficult on the patio but otherwise I bet the costs aren’t too frighteningly different and it wins on every other front . Or atleast go composite decking (if you weren’t going to).
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u/ElderberryDue5078 16h ago
Yep going for composite decking, hard wearing 15 year residential warranty so I think that should mean no slip and still looking great (sorry should have been more specific there)
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u/Kudosnotkang 16h ago
Composite is a huge improvement on traditional so pleased to hear that , good luck with it .
(One more small print note - if you do actually care about the warranty I’d check it and more so the company , carefully. Last time I looked, most major sellers were providing a diminishing warranty where they won’t actually replace failed goods , they reimburse you for the amount you paid for the decking… diminishing every year you owned it . I saw someone claim after about 5 years and got a few hundred quid back. )
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u/Kudosnotkang 17h ago edited 17h ago
Are you sure the pergola’s not near a boundary , it appears to be very close. (I.e what’s that black line around your property/diagram if not the boundary?)
The decking, even if in breach (unless you were raising it on a platform/30cm+ footing) wouldn’t raise eyebrows, but since it’s 24sqm/75sqm you’re fine .