In the UK, an architect or architectural designer usually costs between £1,000 and £5,000 to draw up plans, depending on the size and complexity of your project. Planning drawings on their own typically run £800–£2,000, while building regulations (building control) drawings add roughly £1,000–£3,000. Some firms work to a fixed price; others bill by the hour at around £50–£100.
| Project type | Typical cost to draw plans |
|---|---|
| Small or single-storey extension | £1,000–£1,800 |
| Loft conversion | £1,200–£2,500 |
| New build home | £2,500–£5,000+ |
These figures cover the drawings only. With a fixed price you know the full cost before any work starts, so there are no surprises later.