Updated October 2026
In short: If you have a residential mortgage with NatWest (or any lender) and want to rent the property out, you need the lender's permission, known as consent to let. It's usually granted for a limited period and may come with a fee or a higher interest rate. Letting without consent can breach your mortgage terms. For a longer-term let, switching to a buy-to-let mortgage may be better.
| Option | Best for | Things to weigh up |
|---|---|---|
| Consent to let | Temporary moves: work posting, relocating, can't sell yet | Time-limited; possible fee or rate change; lender conditions |
| Buy-to-let remortgage | Long-term letting | Affordability based on rent; arrangement fees; possible early repayment charges |
| Selling | If you don't want to be a landlord | Market timing and costs |
What lenders usually ask
Typical consent to let information
- Why you're letting and for how long
- Expected rent and the tenancy type
- Confirmation the mortgage is up to date
- Your new address
- Landlord insurance details
Before you let
- Switch to landlord insurance and tell your insurer
- Get gas safety, electrical safety and EPC certificates (EPC rating E or above currently)
- Check whether your property needs a licence from the council
- Protect the deposit and follow the Renters' Rights Act rules in force since 1 May 2026
- Register for self-assessment: rental income is taxable
How Fraser Bond helps accidental landlords
- A free rental valuation to support your consent to let application
- Full compliance setup: certificates, licensing and deposit protection
- Tenant finding and full management while you're away
- Advice on whether to let long term or sell
Thinking of letting your home?
Get a free rental valuation and a clear checklist.
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