Can I Change My Mortgage to Buy-to-Let?

Switch Residential to a Buy-to-Let Mortgage

Understanding the Difference Between Residential and Buy-to-Let Mortgages

Residential mortgages are designed for owner-occupiers – people who plan to live in the home they’ve purchased. A buy-to-let mortgage, on the other hand, is for those who want to rent their property out to tenants. These mortgages differ in several key areas:

  • Deposit size: Buy-to-let typically requires at least a 25% deposit.
  • Interest rates: These can be slightly higher than residential rates.
  • Affordability criteria: Rather than your income, lenders assess the rental income potential.

If you’re thinking of letting out your property, you’ll need to switch your mortgage to avoid breaking your loan terms.

When Should You Change Your Mortgage?

You should change your mortgage to buy-to-let when:

  • You’re moving out of your current home and want to rent it to tenants.
  • You’ve inherited a property and plan to rent it instead of sell.
  • You want to generate passive income from a property you own.

Letting out a property without the correct mortgage product can have serious legal and financial consequences. Acting early ensures you’re protected and compliant.

How Do You Switch from Residential to Buy-to-Let?

There are two main options:

  1. Consent to Let:
    Some lenders offer temporary permission to let out your residential home. This is useful for short-term arrangements (e.g. working abroad for a year). Not all lenders allow this, and it often comes with conditions or added interest.

  2. Full Buy-to-Let Remortgage:
    This is the better long-term solution. You’ll apply for a buy-to-let mortgage with either your current lender or a new one. You’ll typically need:

  • 25%+ equity in the property
  • Proof of expected rental income (typically 125%–145% of the mortgage repayment)
  • A clean credit history

Working with a mortgage broker can make this process far easier, especially if you’re new to the buy-to-let world.

What Are the Risks of Not Switching To a Buy-To-Let Mortgage?

If you begin renting your property without switching mortgages, you’re in breach of contract. This could lead to:

  • Mortgage termination
  • Lump sum repayment demands
  • Invalidated building insurance
  • Negative credit reporting

To avoid these outcomes, transparency with your lender is essential.

Let Novellus Property Management Manage the Next Step

Once your mortgage is sorted, the next challenge is managing tenants and legal obligations. At Novellus, we make this transition seamless. With our let-only services starting from just £495, or our fully hands-off property management packages starting from as little as 8% of monthly rents, landlords in Manchester can relax knowing everything is covered with us.

Conclusion: Switch Smart and Let Novellus Guide You

Changing your mortgage from residential to buy-to-let is not just about paperwork – it’s about setting up your property investment for long-term success. At Novellus Property Management, we don’t just manage your tenants, we help guide your buy-to-let journey from day one.


💬 Ready to take the next step? Contact our team today and let us help you make the switch with confidence.

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