What is Let to Buy and is it Right for You?

By pinnacleadmin / 17th July 2025 / Buy to Let / 5 min read.

When it comes to managing property, the UK housing market is full of creative financial solutions designed to help homeowners and aspiring landlords achieve their goals. One option that’s gaining popularity in today’s market is a let-to-buy arrangement. But what is let-to-buy, and is it the right choice for you?

This article will cover what you need to know about let-to-buy mortgages, how they work, their tax implications, and how Eden Hawk can help you make informed financial decisions.

Understanding Let to Buy

Essentially, a let-to-buy mortgage allows you to rent out your current home while securing a new residential mortgage for a new property. Rather than selling your existing property, you convert your existing residential mortgage into a buy-to-let mortgage, allowing you to earn rental income while moving into your new home.

This strategy is particularly effective for homeowners with enough equity in their existing home, who want to make an onward purchase of a new property without relying on the sale of their current property.

Who Needs a Let-to-Buy Mortgage?

A let-to-buy mortgage could suit:

  • Homeowners who are unable to sell their current property quickly due to market conditions.
  • Couples merging households but wanting to retain one of their existing homes as a long-term investment.
  • Those entering the rental market and starting a property portfolio.
  • Families relocating temporarily and planning to return to their original property later.

Compared to a standard residential mortgage, a let-to-buy mortgage is ideal for handling complex sales or breaking out of a property chain, giving you more control over the purchase price and timing of your new mortgage.

Why Consider a Let-to-Buy Arrangement?

There are several compelling reasons to explore let-to-buy mortgages:

Flexibility to Move

Have you found your ideal new house, but haven’t sold the old one? Let-to-buy lets you move ahead without delays.

Offset Mortgage Payments

You can use rental income from your existing property to help cover mortgage repayments. This is especially helpful if interest rates are rising.

Build Wealth Through Property

Let-to-buy mortgages are a great first step into letting, turning your residential property into a rental property, and creating a long-term investment.

Let to Buy vs Buy to Let

While they sound similar, there are key differences:

Let to Buy

  • Convert your current mortgage into a buy-to-let mortgage and take out a new residential mortgage
  • Balance landlord duties with your own standard residential mortgage payments
  • Subject to both residential mortgage rates and buy-to-let mortgage rates

Buy to Let

  • Purchase a property specifically to rent out
  • Designed solely for property investors
  • Governed strictly buy-to-let let mortgage criteria

Lending Criteria for Let to Buy

Mortgage lenders will assess your let-to-buy mortgage eligibility based on:

  • Rental Income Requirements – Lear how much rental income you can expect. Most lenders want this to cover 125–145% of your let-to-buy mortgage payments.
  • Equity in Current Property – There is typically a borrowing limit of 75%-80% of the value of your current home. You may need to release equity to fund a cash deposit on your new purchase.
  • Lending Criteria – Each lender has unique rules; for example, some impose a maximum age limit.
  • Mortgage Type – You may need to switch to an interest-only buy-to-let mortgage or adjust your mortgage deal on your existing property.
  • Proof of New Mortgage Offer – You’ll often need a new mortgage or mortgage offer in place before proceeding.

Consulting a mortgage broker can help you compare options, understand mortgage rates, and navigate lending criteria for let-to-buy mortgages with ease.

Stamp Duty Considerations

Buying a second property under a let-to-buy mortgage arrangement means you’ll need to pay stamp duty at the additional stamp duty rate. This is a 3% surcharge on top of the standard stamp duty land tax bands.

The good news is, if your original property is sold subject to contract within three years, you may be able to claim a refund on the surcharge. Always retain evidence and consult HMRC.

Additional Considerations

Landlord Responsibilities

Being a landlord means overseeing property maintenance, working with a letting agent, and complying with safety legislation. You must also budget for periods without tenants.

Financial Responsibilities

Managing two mortgages, a buy-to-let mortgage and a residential mortgage, means understanding your monthly repayments, including any interest-only terms, and ensuring you can handle the load if house prices fall or rental income fluctuates.

Lender Coordination

Having both mortgages with the same lender can simplify the process. However, most lenders allow you to work with different lenders if preferred. Note that some may require consent to let or temporary consent before converting your current mortgage.

How Eden Hawk Can Help

At Eden Hawk Financial Solutions, we offer expert advice on mortgage type, structure, and strategy, whether you’re converting your existing mortgage or applying for a buy mortgage deal on your new property.

Our services include:

  • Whole-of-Market Access – We compare buy mortgage rates and residential mortgage rates to secure competitive offers.
  • Tailored Advice – Our brokers consider your financial responsibilities, personal circumstances, and goals.
  • Smooth Applications – We guide you through the application process and liaise with mortgage lenders directly.

From understanding how a let-to-buy mortgage works to preparing for tax implications, Eden Hawk ensures you’re confident at every step.

Final Thoughts

Choosing whether to go down the let-to-buy route depends on your long-term plans, financial capacity, and the housing market outlook. For some, it’s a smart way to retain ownership of an appreciating property value while gaining a new home.

Speak to an Eden Hawk mortgage adviser today to explore whether a let-to-buy strategy is right for you. We’ll help you evaluate your options, compare mortgage offers, and navigate everything from consent to let to coordinating two properties under two mortgages.