bodger53 Posted November 20, 2025 Posted November 20, 2025 Afternoon, I'm applying for planning to knock down and build a replacement dwelling house in South Wales. Alongside the main application I'll also need to submit a separate SUDS application. I have experience with planning and design and aim to pull this all together myself. I've never had to do a 'full' SUDS application though and am unsure what to aim for in terms of level of detail and quantity of documentation. My go to is usually planning portals, but this doesn't exist for SUDS and all the examples I can find are for massive developments. There's heaps of info and resources out there, but it would be great to see an actual submission pack for something relevant. Would anyone be willing to share their submission for a small scale domestic project? - i.e. something that exceeds the 100m2 threshold, but isn't a housing estate! Thanks in advance! 1
Stratman Posted Wednesday at 18:58 Posted Wednesday at 18:58 I'm just going through similar process now. The amount of 'guidance' referred to by the SAB for SUDS is quite overwhelming. Did you get anywhere with this? Apparently I need SAB (also the county council but separate from planning department) approval before any development starts, whereas planners only need the application to have been made before they will partially discharge the condition to the consent.
Roger440 Posted Wednesday at 22:28 Posted Wednesday at 22:28 3 hours ago, Stratman said: I'm just going through similar process now. The amount of 'guidance' referred to by the SAB for SUDS is quite overwhelming. Did you get anywhere with this? Apparently I need SAB (also the county council but separate from planning department) approval before any development starts, whereas planners only need the application to have been made before they will partially discharge the condition to the consent. What is SAB?
Stratman Posted yesterday at 09:03 Posted yesterday at 09:03 10 hours ago, Roger440 said: What is SAB? SUDS Approving Body - fancy name for the council department that deals with them. I think they are part of the civil engineering department as they seem to be the planning application statutory consultee that tells the planning officer to include a SUDS condition in a relevant planning consent.
Roger440 Posted yesterday at 10:57 Posted yesterday at 10:57 1 hour ago, Stratman said: SUDS Approving Body - fancy name for the council department that deals with them. I think they are part of the civil engineering department as they seem to be the planning application statutory consultee that tells the planning officer to include a SUDS condition in a relevant planning consent. Thanks. When i did it, a good while ago, building control dealt with it. Maybe things have changed.
Oz07 Posted yesterday at 11:44 Posted yesterday at 11:44 45 minutes ago, Roger440 said: Thanks. When i did it, a good while ago, building control dealt with it. Maybe things have changed. More jobs for the boys. Bureaucracy gone mad.
Alan Ambrose Posted 9 hours ago Posted 9 hours ago OK this is fairly easy, although please take care to give the key relevant info when asking a question, otherwise you're asking us to write very long mostly irrelevant if-then-else replies. The most obvious questions are what is your drainage situation / what soil-type do you have / where will this drain to?. So: Pay 'Freeflush' £100 for the SUDS calc. You need to supply the plan area of your roofs and non-permeable hard standing and your location. Hint: make your hard-standing permeable and draining (using say, MOT3) to vastly reduce that requirement. That gives you your tank volume. Figure out whether you (a) want to use crates, tank, pond, swale, lake or Versailles-like water feature and (b) where it eventually drains to - ditch, culvert, soakaway, drainage field. You will need a soakaway test for the last two. Draw a simple drawing showing the arrangement. Check the levels and drainage fall if you're not sure. Add a short narrative written in the language of a 5-year old for people who don't understand numbers or drawings. Example calc below and no, you can't use those numbers. 1
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now