New sewer connections - S106
If you’re building a new home or development, you probably want to connect to one of our sewerage pipes so that we can take away your wastewater to treat, clean and return to the environment.
If you’ve used our services before or you already have an adoption agreement with us, then you don’t need to worry about completing the below questions, just head straight to our expression of interest form here.
1. Are you intending to connect foul or surface water flows to the public sewer? Both (Separate applications required for Foul and Surface water)
If you’ve not used our developer services before, then by filling out the below questions we'll be able to point you in the right direction for what you need.
For existing adoption agreements, we’ll automatically send you the new sewer application as soon as the legal agreement is complete.
2. Are you looking to make a permanent connection or to a temporary welfare unit ?
3. Do you have planning permission?
4. If your planning decision notice contains a pre commencement drainage condition, has this been discharged?
An example of a pre commencement condition is provided below.
No development shall commence until a drainage scheme for the site has been submitted to and approved in writing by the Local Planning Authority. The scheme shall provide for the disposal of foul, surface and land water, and include an assessment of the potential to dispose of surface and land water by sustainable means. Thereafter the scheme shall be implemented in accordance with the approved details prior to the occupation of the development and no further foul water, surface water and land drainage shall be allowed to connect directly or indirectly with the public sewerage system.
5. Please note
Connecting directly to a public sewer or private drain that indirectly communicates to the public sewerage system. Please ensure that evidence is submitted along with your subsequent New Sewer Connection application.
- Public sewer - A pipe serving at least two properties. This may be within your curtilage or in the public highway.
- Private drain - Private drain - Conduit used for the conveyance of flows from buildings and yards from within a single curtilage. This will only be found within your curtilage.
Example of a connection outside the boundary - This will require an adoption
Example of a connection where the public sewer is within the site boundary
Where are you looking to connect to the public sewer?
6. Are you looking to connect a single property or multiple buildings?
7. Please note
Thanks for completing the questions. Based on the answers you have given, we believe that you can proceed to the expression of interest page. We will endeavour to review your case and issue the application pack for you to complete and return to us within 3 working days.
In the meantime, if you have anything further you feel is important to let us know about, or wish to discuss further, please feel free to contact us on 0800 917 2652.
7. Please note
Do you need to apply for an adoption agreement?
You will first need an adoption application to proceed.
Apply here6. Please note
Do you need to apply for an adoption agreement?
A connection to a sewer outside of your curtilage will first need an adoption application.
Apply here6. Do you need to apply for an adoption agreement?
Do you need to apply for an adoption agreement?
Where a plot is to be subdivided to create an additional dwelling that is not ancillary to the main dwelling will first need to apply for an adoption agreement.
Apply here5. Please note
A pre commencement condition may require an application to the Local Planning Authority and we suggest that you contact them to discuss further. It is the applicant's responsibility to ensure that they are compliant with their planning permission.
4. Please note
As part of the application process you will need to evidence that you have planning permission in place for your development. Please call us to discuss or wait until you have obtained planning permission to submit your application.
Call Developer Services
If you'd prefer to speak to us over the phone you can contact us using the details below
Monday to Friday, 8:30am to 5:00pm
4. If your planning decision notice contains a pre commencement drainage condition, has this been discharged?
An example of a pre commencement condition is provided below.
No development shall commence until a drainage scheme for the site has been submitted to and approved in writing by the Local Planning Authority. The scheme shall provide for the disposal of foul, surface and land water, and include an assessment of the potential to dispose of surface and land water by sustainable means. Thereafter the scheme shall be implemented in accordance with the approved details prior to the occupation of the development and no further foul water, surface water and land drainage shall be allowed to connect directly or indirectly with the public sewerage system.
5. Please note
Connecting directly to a public sewer or private drain that indirectly communicates to the public sewerage system. Please ensure that evidence is submitted along with your subsequent New Sewer Connection application.
- Public sewer - A pipe serving at least two properties. This may be within your curtilage or in the public highway.
- Private drain - Private drain - Conduit used for the conveyance of flows from buildings and yards from within a single curtilage. This will only be found within your curtilage.
Example of a connection outside the boundary - This will require an adoption
Example of a connection where the public sewer is within the site boundary
Where are you looking to connect to the public sewer?
6. Are you looking to connect a single property or multiple buildings?
7. Please note
Thanks for completing the questions. Based on the answers you have given, we believe that you can proceed to the expression of interest page. We will endeavour to review your case and issue the application pack for you to complete and return to us within 3 working days.
In the meantime, if you have anything further you feel is important to let us know about, or wish to discuss further, please feel free to contact us on 0800 917 2652.
7. Please note
Do you need to apply for an adoption agreement?
You will first need an adoption application to proceed.
Apply here6. Please note
Do you need to apply for an adoption agreement?
A connection to a sewer outside of your curtilage will first need an adoption application.
Apply here6. Do you need to apply for an adoption agreement?
Do you need to apply for an adoption agreement?
Where a plot is to be subdivided to create an additional dwelling that is not ancillary to the main dwelling will first need to apply for an adoption agreement.
Apply here5. Please note
A pre commencement condition may require an application to the Local Planning Authority and we suggest that you contact them to discuss further. It is the applicant's responsibility to ensure that they are compliant with their planning permission.
3. Please note
Temporary Connection application form
Please complete the attached temporary connection application form and return to developer.services@dwrcymru.com.
Take me to form2. Are you looking to make a permanent connection or to a temporary welfare unit ?
Thank you for your interest. If you don’t have confirmation of a prior agreement to connect surface water to the public sewer or SAB consent, this could cause your application to be declined.
To ensure your application is approved we recommend that you gain the necessary agreement or SAB approval first and then come back to finish the rest of the application process. If you need any further help, please call us on the number below.
If you have SAB approval, continue to move to the next question below.
Call Developer Services
If you'd prefer to speak to us over the phone you can contact us using the details below
Monday to Friday, 8:30am to 5:00pm
3. Do you have planning permission?
4. If your planning decision notice contains a pre commencement drainage condition, has this been discharged?
An example of a pre commencement condition is provided below.
No development shall commence until a drainage scheme for the site has been submitted to and approved in writing by the Local Planning Authority. The scheme shall provide for the disposal of foul, surface and land water, and include an assessment of the potential to dispose of surface and land water by sustainable means. Thereafter the scheme shall be implemented in accordance with the approved details prior to the occupation of the development and no further foul water, surface water and land drainage shall be allowed to connect directly or indirectly with the public sewerage system.
5. Please note
Connecting directly to a public sewer or private drain that indirectly communicates to the public sewerage system. Please ensure that evidence is submitted along with your subsequent New Sewer Connection application.
- Public sewer - A pipe serving at least two properties. This may be within your curtilage or in the public highway.
- Private drain - Private drain - Conduit used for the conveyance of flows from buildings and yards from within a single curtilage. This will only be found within your curtilage.
Example of a connection outside the boundary - This will require an adoption
Example of a connection where the public sewer is within the site boundary
Where are you looking to connect to the public sewer?
6. Are you looking to connect a single property or multiple buildings?
7. Please note
Thanks for completing the questions. Based on the answers you have given, we believe that you can proceed to the expression of interest page. We will endeavour to review your case and issue the application pack for you to complete and return to us within 3 working days.
In the meantime, if you have anything further you feel is important to let us know about, or wish to discuss further, please feel free to contact us on 0800 917 2652.
7. Please note
Do you need to apply for an adoption agreement?
You will first need an adoption application to proceed.
Apply here6. Please note
Do you need to apply for an adoption agreement?
A connection to a sewer outside of your curtilage will first need an adoption application.
Apply here6. Do you need to apply for an adoption agreement?
Do you need to apply for an adoption agreement?
Where a plot is to be subdivided to create an additional dwelling that is not ancillary to the main dwelling will first need to apply for an adoption agreement.
Apply here5. Please note
A pre commencement condition may require an application to the Local Planning Authority and we suggest that you contact them to discuss further. It is the applicant's responsibility to ensure that they are compliant with their planning permission.
4. Please note
As part of the application process you will need to evidence that you have planning permission in place for your development. Please call us to discuss or wait until you have obtained planning permission to submit your application.
Call Developer Services
If you'd prefer to speak to us over the phone you can contact us using the details below
Monday to Friday, 8:30am to 5:00pm
4. If your planning decision notice contains a pre commencement drainage condition, has this been discharged?
An example of a pre commencement condition is provided below.
No development shall commence until a drainage scheme for the site has been submitted to and approved in writing by the Local Planning Authority. The scheme shall provide for the disposal of foul, surface and land water, and include an assessment of the potential to dispose of surface and land water by sustainable means. Thereafter the scheme shall be implemented in accordance with the approved details prior to the occupation of the development and no further foul water, surface water and land drainage shall be allowed to connect directly or indirectly with the public sewerage system.
5. Please note
Connecting directly to a public sewer or private drain that indirectly communicates to the public sewerage system. Please ensure that evidence is submitted along with your subsequent New Sewer Connection application.
- Public sewer - A pipe serving at least two properties. This may be within your curtilage or in the public highway.
- Private drain - Private drain - Conduit used for the conveyance of flows from buildings and yards from within a single curtilage. This will only be found within your curtilage.
Example of a connection outside the boundary - This will require an adoption
Example of a connection where the public sewer is within the site boundary
Where are you looking to connect to the public sewer?
6. Are you looking to connect a single property or multiple buildings?
7. Please note
Thanks for completing the questions. Based on the answers you have given, we believe that you can proceed to the expression of interest page. We will endeavour to review your case and issue the application pack for you to complete and return to us within 3 working days.
In the meantime, if you have anything further you feel is important to let us know about, or wish to discuss further, please feel free to contact us on 0800 917 2652.
7. Please note
Do you need to apply for an adoption agreement?
You will first need an adoption application to proceed.
Apply here6. Please note
Do you need to apply for an adoption agreement?
A connection to a sewer outside of your curtilage will first need an adoption application.
Apply here6. Do you need to apply for an adoption agreement?
Do you need to apply for an adoption agreement?
Where a plot is to be subdivided to create an additional dwelling that is not ancillary to the main dwelling will first need to apply for an adoption agreement.
Apply here5. Please note
A pre commencement condition may require an application to the Local Planning Authority and we suggest that you contact them to discuss further. It is the applicant's responsibility to ensure that they are compliant with their planning permission.
3. Please note
Temporary Connection application form
Please complete the attached temporary connection application form and return to developer.services@dwrcymru.com.
Take me to form2. Please note
Thank you for your interest. If you don’t have confirmation of a prior agreement to connect surface water to the public sewer or SAB consent, this could cause your application to be declined.
To ensure your application is approved we recommend that you gain the necessary agreement or SAB approval first and then come back to finish the rest of the application process. If you need any further help, please call us on the number below.
If you have SAB approval, continue to move to the next question below.
3. Do you have planning permission?
4. If your planning decision notice contains a pre commencement drainage condition, has this been discharged?
An example of a pre commencement condition is provided below.
No development shall commence until a drainage scheme for the site has been submitted to and approved in writing by the Local Planning Authority. The scheme shall provide for the disposal of foul, surface and land water, and include an assessment of the potential to dispose of surface and land water by sustainable means. Thereafter the scheme shall be implemented in accordance with the approved details prior to the occupation of the development and no further foul water, surface water and land drainage shall be allowed to connect directly or indirectly with the public sewerage system.
5. Please note
Connecting directly to a public sewer or private drain that indirectly communicates to the public sewerage system. Please ensure that evidence is submitted along with your subsequent New Sewer Connection application.
- Public sewer - A pipe serving at least two properties. This may be within your curtilage or in the public highway.
- Private drain - Private drain - Conduit used for the conveyance of flows from buildings and yards from within a single curtilage. This will only be found within your curtilage.
Example of a connection outside the boundary - This will require an adoption
Example of a connection where the public sewer is within the site boundary
Where are you looking to connect to the public sewer?
6. Are you looking to connect a single property or multiple buildings?
7. Please note
Thanks for completing the questions. Based on the answers you have given, we believe that you can proceed to the expression of interest page. We will endeavour to review your case and issue the application pack for you to complete and return to us within 3 working days.
In the meantime, if you have anything further you feel is important to let us know about, or wish to discuss further, please feel free to contact us on 0800 917 2652.
7. Please note
Do you need to apply for an adoption agreement?
You will first need an adoption application to proceed.
Apply here6. Please note
Do you need to apply for an adoption agreement?
A connection to a sewer outside of your curtilage will first need an adoption application.
Apply here6. Do you need to apply for an adoption agreement?
Do you need to apply for an adoption agreement?
Where a plot is to be subdivided to create an additional dwelling that is not ancillary to the main dwelling will first need to apply for an adoption agreement.
Apply here5. Please note
A pre commencement condition may require an application to the Local Planning Authority and we suggest that you contact them to discuss further. It is the applicant's responsibility to ensure that they are compliant with their planning permission.
4. Please note
As part of the application process you will need to evidence that you have planning permission in place for your development. Please call us to discuss or wait until you have obtained planning permission to submit your application.
Call Developer Services
If you'd prefer to speak to us over the phone you can contact us using the details below
Monday to Friday, 8:30am to 5:00pm
4. If your planning decision notice contains a pre commencement drainage condition, has this been discharged?
An example of a pre commencement condition is provided below.
No development shall commence until a drainage scheme for the site has been submitted to and approved in writing by the Local Planning Authority. The scheme shall provide for the disposal of foul, surface and land water, and include an assessment of the potential to dispose of surface and land water by sustainable means. Thereafter the scheme shall be implemented in accordance with the approved details prior to the occupation of the development and no further foul water, surface water and land drainage shall be allowed to connect directly or indirectly with the public sewerage system.
5. Please note
Connecting directly to a public sewer or private drain that indirectly communicates to the public sewerage system. Please ensure that evidence is submitted along with your subsequent New Sewer Connection application.
- Public sewer - A pipe serving at least two properties. This may be within your curtilage or in the public highway.
- Private drain - Private drain - Conduit used for the conveyance of flows from buildings and yards from within a single curtilage. This will only be found within your curtilage.
Example of a connection outside the boundary - This will require an adoption
Example of a connection where the public sewer is within the site boundary
Where are you looking to connect to the public sewer?
6. Are you looking to connect a single property or multiple buildings?
7. Please note
Thanks for completing the questions. Based on the answers you have given, we believe that you can proceed to the expression of interest page. We will endeavour to review your case and issue the application pack for you to complete and return to us within 3 working days.
In the meantime, if you have anything further you feel is important to let us know about, or wish to discuss further, please feel free to contact us on 0800 917 2652.
7. Please note
Do you need to apply for an adoption agreement?
You will first need an adoption application to proceed.
Apply here6. Please note
Do you need to apply for an adoption agreement?
A connection to a sewer outside of your curtilage will first need an adoption application.
Apply here6. Do you need to apply for an adoption agreement?
Do you need to apply for an adoption agreement?
Where a plot is to be subdivided to create an additional dwelling that is not ancillary to the main dwelling will first need to apply for an adoption agreement.
Apply here5. Please note
A pre commencement condition may require an application to the Local Planning Authority and we suggest that you contact them to discuss further. It is the applicant's responsibility to ensure that they are compliant with their planning permission.
3. Please note
Temporary Connection application form
Please complete the attached temporary connection application form and return to developer.services@dwrcymru.com.
Take me to form2. Please note
Thank you for your interest. a separate application is needed for each flow type (foul and surface water) and that surface water must be accompanied with confirmation of prior agreement or SAB approval.
Please return to the previous step and select one of the options to continue.
We will technically vet your application to ensure it complies with our guidance. It will also include a site visit by one of our site controllers.
We will either approve or refuse your application within 21 days.
A new single sewer connection for:
- 1-25 properties (one connection can service multiple properties) is £275.31.
- 26+ properties (one connection can service multiple properties) is £374.01.
As a not for profit company, our charges are based on the cost of delivering the service only. For information on our charges, visit our schedule of charges here.
Any new connection to a public sewer will need our approval. Even if you are re-using an existing sewer connection, we still need to approve it. If we haven’t given our consent, then you’re breaking the law.
New sewer connection guidance notes
PDF, 198.9kB
What to do if you need an adoption agreement
When the public sewer is outside of your property’s boundary, you need to apply for our adoption agreement. Once this adoption agreement is in place, you can then apply for a new sewer connection
Find out more here