From the specialist next door. Mike is based in Deeside — fifteen minutes from the city — and has drawn extensions across Chester and the border villages for 25 years. Cheshire West applications handled end to end. Planning permission in Chester →
⚡ Get an instant estimate 📋 Book a £60 Initial Site Appraisal Meeting ⓘ Why an Initial Site Appraisal Meeting?Chester work runs through Cheshire West and Chester Council — English rules, not Welsh ones — so the householder fee is £548 and the Permitted Development limits differ from over the border. Mike works both sides of the border every week, from Handbridge and Hoole to Saltney, Broughton and the villages, and knows what Cheshire West’s validation team expects to see. Conservation areas across the city need particular care with materials and design — exactly the judgement 25 years buys.
Once your fee is agreed, Mike returns and measures the house himself — no juniors, no outsourcing. This is the second visit; the earlier £60 Initial Site Appraisal Meeting comes off your fee.
Scaled drawings of your home as it is and as it will be — the documents your planning application stands on.
Prepared, submitted and handled for you — or confirmation you don't need one under Permitted Development, which saves you the council fee entirely.
The technical pack — structure, insulation, fire safety, drainage — that building control approves and your builder prices from.
Mike works to a fixed written fee, agreed before any work begins. Council fees are separate and paid directly — never through Mike.
| Item | Typical cost | Paid to |
|---|---|---|
| Mike’s fee — single storey extension | £750 – £1,400 | Mike (fixed, written) |
| Mike’s fee — two storey extension | £950 – £1,800 | Mike (fixed, written) |
| Planning application (if required) | £585 Wales / £548 Cheshire | Your council |
| Planning Portal service charge | £149 | Planning Portal |
| Building control (approx.) | £650 – £2,000 | Council / inspector |
Or just use it right here ↓
Mike's fee plus the council fees for planning and building control — the full professional stage, before a builder is involved. Two taps for a figure — no obligation.
Mike’s fee covers the complete design and approvals stage:
Why the range? Every home is different. The lower end covers a straightforward project — standard drawings, no planning application needed. The higher end covers larger or more complex work — a full planning application, more detailed drawings, or structural design to coordinate.
Before any work begins, Mike gives you a detailed written fee proposal — so you know exactly what you are paying and what it covers. The number you agree is the number you pay.
Only if planning permission is needed. Wales charges £585 for a householder application and Cheshire West & Chester £548 — the fee is set nationally, so it does not vary between Welsh councils. Paid directly to your council, never through Mike.
The service charge for submitting a planning application online. It also only applies if permission is needed, and it is charged per application submitted.
This one always applies, permission or not. It is calculated on floor area and subject to the final design — smaller projects sit toward the lower figure, larger ones toward the higher. Paid to the council's building control team or a private approved inspector, never through Mike, and he gets you an exact quote once the design is finalised.
Design and approvals only. This is what it costs to get your project drawn and approved — it does not include your builder’s costs for the actual building work.
If your project turns out to be Permitted Development, you will not need to pay the council planning fee or the Planning Portal charge, a saving of up to approximately £734. Mike checks this at the Initial Site Appraisal Meeting.
Read more about extension plans →
Already built it without approval? Regularisation →
Guide figures only. The £60 Initial Site Appraisal Meeting is not added to these figures — it comes off Mike's fee when you commission the work. Council fees correct at July 2026; building control charges vary by council and project — full details in the FAQs. Mike confirms everything in a written fee proposal before any work begins.
Or have Mike email this estimate to you — no obligation.
✅ Sent — your estimate is on its way. No obligation.
Couldn't send just now — call Mike on 07703 786 460 or email [email protected].
£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.
Every planning application Deeside Architectural Design submits goes onto the council's public register — under the practice name, with the decision attached, permanently. It's free to search and it isn't curated by us. What the register cannot show you is the other half of the work: the projects that qualified as Permitted Development, needed no application at all, and saved the client the council fee. Those leave no public trace. So the numbers below are the part you can check — not the whole of it. Before you decide whether the fee above is worth paying, go and read it.
Twenty-three of the twenty-four applications submitted to Cheshire West and Chester Council were approved — searchable on their own register under the same practice name.
Submitted to Flintshire County Council since 2010, either side of the border — every one searchable, with its decision attached.
Many projects qualify as Permitted Development, need no application, and never reach the register. The figures above are the work that required permission — not the count of jobs done.
Deeside Architectural Design Limited, incorporated January 2010, and 25 years of drawings behind it. Companies House no. 07128221.
Open Cheshire West and Chester's planning register, put Deeside Architectural in the Agent field, and read every decision, including the one that is not a straight approval.
Search Cheshire West and Chester's planning register →
Figures taken from the Cheshire West and Chester and Flintshire County Council public planning registers, September 2026.
Both, genuinely — Deeside to Chester is a fifteen-minute drive, and a good share of Mike’s 25 years of work sits in Chester and its villages: Saltney, Broughton, Handbridge, Hoole, Upton, Vicars Cross and out to the rural fringe.
Yes — England and Wales have different Permitted Development rules and different fees (£548 in Cheshire West vs £585 in Wales). The estimator on this page is already set to Cheshire West so your numbers are right first time.
Usually yes, with the right design — conservation status restricts Permitted Development and raises the bar on materials and detailing, it doesn’t ban extensions. Mike will tell you honestly at the Initial Site Appraisal Meeting what the conservation officer is likely to accept.
Two taps on the estimator gives you a realistic figure. When you're ready, the £60 Initial Site Appraisal Meeting comes off your fee if you go ahead.
⚡ Instant estimate Book the Initial Site Appraisal Meeting