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What fee is charged when a planning application covers multiple categories of development?

When a full planning permission, lawful development certificate, or reserved matters application covers more than one category of development (as per the fees regulations1), then it’s not simply a case of adding all the fees for each category together and paying the total.

Instead there are rules in the fee regulations2, depending on which categories of development are included, to determine what fee should be paid.

The Planning Portal fee calculators automatically apply the relevant rules, which is why you may see totals for individual categories that are not all reflected in the final fee amount.

Calculation rules

Initially, the individual fee for each separate category of development should be calculated.

Then:

  1. Where the application includes 'New dwellinghouses' and erection of buildings only, the fee due is:
  • The fee for the new dwellinghouses; added to
  • The highest fee due for the erection of buildings
  1. Where the application includes 'New dwellinghouses', erection of buildings and/or other development (including changes of use), the fee due is the highest of either:
    • The fee for the new dwellinghouses added to the highest fee due for the erection of buildings (as per above); or
    • The highest fee due for the other development
  2. Where the application covers mixed development (excluding 'New dwellinghouses'; but including changes of use), the fee due is the highest fee from all relevant fee categories

Additionally, for lawful development certificates only:

  1. Where the application covers existing use(s) and any other matter constituting a failure to comply with any condition or limitation subject to which planning permission has been granted, the fee is:
    • The fee for the existing use(s), which may be subject to the rules above; added to
    • The fee for the previous failure to comply with conditions or limitations

Further information

Full details are available in:


Pa ffi a godir pan fydd cais cynllunio yn cynnwys sawl categori o ddatblygiad?

Pan fydd caniatâd cynllunio llawn, tystysgrif datblygiad cyfreithlon, neu gais materion a gadwyd yn ôl yn cynnwys mwy nag un categori o ddatblygiad (fel y nodir yn y rheoliadau ffioedd6), yna nid yw'n achos o adio'r ffioedd ar gyfer pob categori at ei gilydd a thalu'r cyfanswm yn unig.

Yn hytrach, mae rheolau yn y rheoliadau ffioedd7, yn dibynnu ar ba gategorïau o ddatblygiad sy'n cael eu cynnwys, er mwyn pennu pa ffi y dylid ei thalu.

Mae cyfrifwyr ffioedd y Planning Portal yn ystyried y rheolau perthnasol yn awtomatig, a dyna pam ei bod hi'n bosibl y byddwch yn gweld cyfanswm ar gyfer categorïau unigol nad ydynt wedi'u hadlewyrchu yn y swm ffi terfynol.

Rheolau cyfrifo

I ddechrau, dylid cyfrifo'r ffi unigol ar gyfer pob categori o ddatblygiad.

Yna:

  1. Pan fydd y cais yn cynnwys 'Tai annedd newydd' a chodi adeiladau yn unig, y ffi sy'n ddyledus yw:
  • Y ffi ar gyfer y tai annedd newydd; ychwanegwyd at
  • Y ffi uchaf sy'n ddyledus ar gyfer codi adeiladau
  1. Pan fydd y cais yn cynnwys 'Tai annedd newydd', codi adeiladau a/neu ddatblygiad arall (gan gynnwys newid defnydd), y ffi sy'n ddyledus yw'r uchaf o naill ai:
    • Y ffi ar gyfer y tai annedd newydd a ychwanegir at y ffi uchaf sy'n ddyledus ar gyfer codi adeiladau (fel y nodir uchod); neu
    • Y ffi uchaf sy'n ddyledus ar gyfer y datblygiad arall
  2. Pan fydd y cais yn cynnwys datblygiad cymysgu (ac eithrio 'Tai annedd newydd'; ond yn cynnwys newid defnydd), y ffi sy'n ddyledus yw'r ffi uchaf o bob categori ffioedd perthnasol

Yn ogystal, ar gyfer tystysgrifau datblygiad cyfreithiol yn unig:

  1. Pan fydd y cais yn cynnwys defnydd presennol ac unrhyw fater arall sy'n golygu methiant i gydymffurfio ag unrhyw amod neu gyfyngiad y rhoddwyd caniatâd cynllunio yn ddarostyngedig iddo, y ffi yw:
    • Y ffi ar gyfer defnydd sy'n bodoli eisoes, a all fod yn ddarostyngedig i'r rheolau uchod; ychwanegwyd at
    • Y ffi ar gyfer methiant blaenorol i gydymffurfio ag amodau neu gyfyngiadau

Rhagor o wybodaeth

Ceir manylion llawn yn:


  1. https://www.legislation.gov.uk/wsi/2015/1522/schedule/1/part/2/made
  2. https://www.legislation.gov.uk/wsi/2015/1522/schedule/1/part/1/made#schedule-1-paragraph-10
  3. https://www.gov.wales/planning-application-fees
  4. https://www.legislation.gov.uk/wsi/2015/1522/schedule/1/part/1/made#schedule-1-paragraph-10
  5. https://www.legislation.gov.uk/wsi/2015/1522/regulation/11/made
  6. https://www.legislation.gov.uk/wsi/2015/1522/schedule/1/part/2/made/welsh
  7. https://www.legislation.gov.uk/wsi/2015/1522/schedule/1/part/1/made/welsh#schedule-1-paragraph-10
  8. https://www.llyw.cymru/ffioedd-ceisiadau-cynllunio
  9. https://www.legislation.gov.uk/wsi/2015/1522/schedule/1/part/1/made/welsh#schedule-1-paragraph-10
  10. https://www.legislation.gov.uk/wsi/2015/1522/regulation/11/made/welsh

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The Planning Portal is delivered by PortalPlanQuest Limited which is a joint venture between TerraQuest Solutions Limited and the Ministry of Housing, Communities & Local Government (MHCLG). All content © 2026 Planning Portal.