Staircasing: what is a valuation and who pays for it?
When you staircase, the price of the extra shares is usually based on a current valuation. In most cases you pay for that valuation as part of the staircasing process.
Published: 28/04/2026 • Last verified: 28/04/2026
The short answer
When you staircase (buy more shares in a shared ownership home), the additional shares are usually priced using a current valuation of the property, rather than what you paid originally.
GOV.UK guidance explains the steps and makes clear you normally need a valuation as part of the process — and that the buyer typically pays the costs involved.
A tiny example
Example (illustrative):
- Your home was valued at £250,000 when you bought your first share.
- You staircase later and the valuation says it’s now worth £280,000.
- If you buy an extra 10% share, the share price is typically based on 10% of £280,000, not 10% of the original value.
That’s why the valuation matters: it sets the price point for the extra shares.
Helpful links
- Related calculator: /shared-ownership/
- Full guide: /guides/staircasing-costs-explained-uk/
- Full guide: /guides/shared-ownership-staircasing-explained/
- Glossary: /glossary/staircasing/
Sources