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Planning permission for an extension in Flintshire

Often you don't need it. The council fee is £585 if you do. Mike is in Hawarden and will tell you which side of the line you're on before you pay it.

📋 Book a £60 Initial Site Appraisal Meeting

Do you need planning permission for an extension in Flintshire?

Often, no. A straightforward single-storey rear extension can fall under Welsh Permitted Development, so there is no application and no £585 fee to the council. The Flintshire planning register lists 165 applications under Deeside Architectural Design since 2010. Mike is based in Hawarden and will tell you which side of the line you're on before any council fee is spent. The council fee is £585, plus the £149 Planning Portal charge — paid to them, not to Mike. Flintshire aims to decide a householder application in eight weeks from acceptance as valid. Mike prepares the drawings, submits them, and deals with the case officer. One fixed written fee. The drawings follow Flintshire's own extension guidance, adopted in October 2024.

Towns: Hawarden, Connah's Quay, Shotton, Buckley, Mold, Queensferry, Flint, Holywell

Book your Initial Site Appraisal Meeting.

£60, and it comes off your fee when you go ahead. Mike comes to the property to understand the scope of what you want to do and advise you accordingly — then sends a written fixed fee afterwards.

Mike rings this to arrange a time that suits you.

🔒 Mike replies as quickly as he can. Your details are never shared.

Couldn't send just now — please call Mike on 07703 786 460 or email [email protected].

Questions people ask.

Do you need planning permission for an extension in Flintshire?

Often not. Welsh rules, not English ones. Conservation areas and listed buildings are the usual exceptions. The £60 Initial Site Appraisal Meeting is the check, before the £585 fee.

How much does a Flintshire householder application cost?

£585 to the council if permission is needed, plus the £149 Planning Portal charge — paid to them. Mike's drawing fee is separate, fixed, and written down first. If it is Permitted Development, the council fee does not apply.

How long does planning permission take in Flintshire?

Eight weeks from the day Flintshire accepts the application as valid. The survey and drawings sit in front of that.

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