Getting a Mortgage on a Home with a Flat Roof

Flat roofs are common yet often considered a mortgage risk due to the potential for flooding and water damage. Read on to explore how to find the best possible mortgage for a flat-roofed property and ways to showcase the value of your home to your selected lender.

About your mortgage

Error: Yearly income income must be between £1 and £10,000,000.

Error: Regular bonus must be between £1 and £10,000,000.

Based on your yearly income, you may be able to borrow:


Most lenders will let you borrow 4.5 times your annual salary so, as long as you have a standard 10% deposit, you should be able to borrow this much.


Depending on your personal circumstances, some lenders may let you borrow 5 times your salary.


Lenders usually cap the amount they lend at 5.5 times your salary, so it’s unlikely you’ll be able to borrow more than this.

This calculator is an estimation of how much you could borrow. If you’re ready to take out a mortgage, speak to a Revolution brokers to see what options are available.

Getting a Mortgage on a Home with a Flat Roof

The majority of UK homes have a pitched roof. However, some houses have a flat roof or this type of construction on some of the property.

Revolution Brokers helps many clients who have been rejected for mortgage lending on the basis that the property is 'non-standard', and so have compiled this guide to explain what factors will make a difference in your likelihood of getting a mortgage on a property with a flat roof.

If you are in this position or would like to see what rates we could secure for your flat roof mortgage, give us a call on 0330 304 3040 or email the team at

Why is it More Difficult to Mortgage a Flat Roof Property?

Flat roofs are considered non-standard construction, so there are fewer lenders who will offer a mortgage against this type of property.

The key is to find a lender whose eligibility criteria you meet as closely as possible and to work with an independent broker who can negotiate the terms on your behalf.

Lenders consider a flat roof a higher risk since the maintenance costs might be higher, and it could impact the resale value of the property:

  • Flat roofs don't generally last as long as pitched roofs and can cost more to repair.
  • There is a more significant potential of damage from leaks, and moss.
  • Drainage issues can occur when water accumulates on a flat roof.
  • Insulation is lessened, and heat is more easily absorbed in the summer.
  • A flat roof is a risk factor when it comes to exposure to break-ins.

There are a few things you can do to improve your chances of mortgaging a flat roof property:

  • Ensure the roof has been maintained and inspected regularly.
  • Negotiate the purchase price down in light of expected upkeep costs.
  • Ask for reports of work completed.

Can I Get a Mortgage on Building an Extension with a Flat Roof?

Many extensions are built with a flat roof, and this is easier to mortgage since the main property will usually have a traditional pitched roof.

You may still need to ask for a survey to verify that the flat roof is in good condition and has been adequately maintained.

Which is the Best UK Lender for a Flat Roof Mortgage?

Revolution Brokers can advise on the best lenders to apply to, depending on your circumstances, the type of property you wish to buy, and how much you would like to borrow.

In some cases, a niche lender will offer the most competitive rates. In others, we can negotiate terms such as the deposit required to mitigate the risk so that your chosen lender can accept your application.

What Factors Will a Lender Consider on a Flat Roof Mortgage Application?

Lenders will look at several factors before offering to lend on a non-standard property:

  • Your credit file. If you have bad credit and wish to mortgage a non-standard home, a specialist lender is probably the most viable option.
  • Loan to Value ratio. Given that lenders perceive non-traditional properties as higher risk, if you can offer a larger deposit to reduce the LTV, you might have more borrowing options to choose between.
  • Affordability. Every lender needs to calculate your affordability to ensure you can keep up with the mortgage repayments. This is usually based on a cap of around 4.5 times your annual income, although you can sometimes borrow more depending on your eligibility.
  • Employment - if you are not in PAYE employment and are, say, a freelancer or a contractor, again a high street bank might not be able to lend with multiple higher risk factors.
  • Age. Some mainstream lenders cap mortgages at age 75 or 85, although there are always specialist lenders out there with far more flexible terms.

Professional Support with Mortgaging a Flat Roof Property

Non-standard properties are more common than you might imagine, and the business finance broker team has years of experience in negotiating competitive mortgages with niche lenders.

If you are considering a flat roof mortgage, have been turned down elsewhere, or need specialist lending, get in touch at 0330 304 3040, or email us at

Why Revolution Brokers?
  • Whole of market brokers

  • Mortgage that suits you

  • On time customer support

Latest Blogs

11 Mar 2022
Guide to Remortgaging to Finance a Home Renovation

Remortgaging your home is a great way to release equity and raise finance for those home improvement jobs you've always wanted to do. Before applying, it's vital to work out how much equity you have in your property and ensure sufficient capacity to borrow the funds required for the renovation you have in mind. In today's article, t..

10 Feb 2022
Do I Qualify for First-Time Buyer Status?

Do I Qualify for First-Time Buyer Status? Working out whether or not you are a first time buyer may seem obvious - but there are plenty of scenarios where your position isn't clear! Examples might include: New buyers who have inherited a property they rent out. Buy-to-let investors that have never purchased a residential hom..

26 Jan 2022
How Does a Remortgage Application Work?

Most homeowners know that remortgaging means switching a mortgage from an existing lender over to a new deal. However, the process isn't always obvious. If you're on a fixed-rate deal, you'll want to get ahead of the end of the term to avoid being shuffled onto a higher standard variable rate where your interest costs will undoubtedly ..

17 Dec 2021
Understanding Lender Risk on First-Time Buyer Mortgages

Finding a great mortgage as a first time buyer can feel like an uphill struggle, with a larger proportion of applicants being turned down than a year ago. Around 20% of first-time mortgage applicants are rejected, usually because of the lender risk associated with their loan. Today, Revolution Brokers explains the highest risk facto..

28 Oct 2021
Pros and Cons of First Time Buyer Buy to Let Mortgages

Investing in a rental property can be an excellent way to get onto the property ladder and earn an income. However, if you haven't owned a residence before, you might find that a mainstream bank will automatically turn you down for a buy to let mortgage. In today's guide, the Revolution Brokers team explains how you can become a ren..

12 Oct 2021
Mortgage Deposit Requirements for First-Time Buyers

Buying a home for the first time is a massive step - but the deposit is often a stumbling block for first-time buyers. It can take years to save a sufficient amount or be impossible, so there are several ways to approach the problem and get your foot onto the property ladder. From April 2021, the UK government launched the new mortg..


Refer, Relax and get £50

If you refer a friend for a mortgage or any
type of finance you’ll both receive £25
each when their new application
successfully completes.

Know More!

We are proud
members of the:

FCA disclaimer

The content included in our articles, blogs, web pages and news publications is based on information accurate at the time of writing. Note that policies and criteria can change regularly throughout the UK mortgage lending market, and it remains essential to contact the consultation team to receive up to date guidance. The information included on the Revolution Brokers site is not bespoke to any circumstances or individual application scenarios and therefore is not intended to be used as financial advice. The content we share is designed to be informative and helpful but cannot be relied upon to provide individual advice relevant to your mortgage requirements. All Revolution team members are fully qualified, trained and experienced to provide mortgage advice of an independent nature. We collaborate with lenders and providers who are regulated, authorised and registered with the Financial Conduct Authority (FCA). Should you require specific mortgage borrowing types, some products such as buy to let mortgages may not be FCA regulated. The Revolution team can provide further information about regulated and unregulated lending as required. Please remember that a mortgage is a debt which is secured against your home or property. Your home can be at risk of repossession if you do not keep up with the repayments or encounter any other difficulties in managing your mortgage borrowing responsibly. This also applies to any remortgage or home loan secured against your property, including equity release products.

Ask the Mortgage Experts

Revolution Brokers understands that mortgages can be complex and confusing!

Ask us any question you might have, and one of our skilled consultants will come back to you as quickly as possible.