Costs

What Will My Project Cost?

Now that you have an overview of the Planning and Building Regulations process, it’s natural to wonder what the likely costs will be. Every project is unique, and we always provide a tailored quote before starting work, but the guide below gives a realistic idea of the typical fees involved.

These figures are based on 2026 rates and may vary depending on the size and complexity of your project.

1. Measured Building Survey

Before any design work can begin, we need accurate information about your existing property. This is usually carried out by a professional surveying company who will produce a detailed measured survey and supply a CAD file.

Typical cost: around £1,800

Paid directly by the client

The CAD file becomes your property and is useful for any future projects

2. Pre‑Application Stage (Optional but Often Recommended)

Once the survey is complete, we can prepare initial proposals suitable for a Pre‑Application enquiry with your Local Authority.

DLDS fees:

£450 – £1,000 (depending on complexity)

Local Authority Pre‑App fees:

£80 – £400 (varies by council)

A favourable Pre‑App response can save time and reduce the risk of refusal later.

3. Planning Application

If the Pre‑App feedback is positive, we can prepare and submit a full Planning Application.

DLDS fees:

Around £500

Local Authority Planning fees:

Currently around £700

We handle the entire submission process and liaise with the council on your behalf.

4. Building Regulations (Building Control) Stage

Once Planning Permission is granted, we move on to the technical design required for Building Control approval.

DLDS fees:

£500 – £1,500 (depending on the level of detail required)

Building Control fees:

Plan check fee: around £300

Inspection fee: typically around £600 (payable once work begins on site)

You can choose either Local Authority Building Control or a private Building Control provider. We can advise on the best option for your project.

5. Additional Specialist Fees (If Required)

Some projects require input from other professionals, such as:

• Structural Engineer
• Energy Assessor / SAP calculations
• Drainage consultant (for complex sites)
• Party Wall Surveyor (if applicable)

We will advise you early on if any of these are needed.

Important Note

These figures are guidance only and reflect typical costs in 2026. Actual fees may vary depending on:

• Project size
• Structural complexity
• Local Authority charges
• Site conditions

We always provide a clear, itemised quote before starting any work.