Residential Mortgages: Buying, Remortgaging, Deposits and Affordability

Whether you are buying your first home, moving to a new property, remortgaging to a better deal or exploring how much you can borrow, this hub brings together Mortgage One’s residential mortgage guidance in one place. Each guide below covers a specific part of the process — from working out your deposit and affordability to choosing the right mortgage structure and understanding what lenders look for. If your situation involves anything outside a standard UK employed application, Mortgage One can help you navigate it.

Your home may be repossessed if you do not keep up repayments on a mortgage or any other debt secured on it.

For a free initial consultation about a residential mortgage, call 01202 155992 or contact Mortgage One.

First-Time Buyers and Stepping onto the Ladder

Buying your first home involves decisions around deposit size, lender criteria, government support and which mortgage type suits your circumstances. The first-time buyer mortgage guide covers how lenders assess first-time applicants, what deposit levels are realistic and what to expect from the application process. If deposit size is the main constraint, the small deposit mortgages guide explains which lenders offer higher loan-to-value products and what the trade-offs look like on rate and fees.

Several government-backed routes can help first-time buyers. The shared ownership mortgages guide covers how part-buy, part-rent arrangements work and which lenders support them. The Help to Buy mortgages guide explains the equity loan scheme and its implications for future remortgaging. For a broader view of available support, the government mortgage schemes guide covers current and recent programmes in one place.

Moving Home, Remortgaging and Second Properties

If you already own a property and are looking to move, the home owners and moving home guide covers porting, early repayment charges, additional borrowing and how to time a sale and purchase. Homeowners who want to stay in their current property but switch to a better rate or raise capital should start with the remortgaging guide, which covers when remortgaging makes sense, the process and what lenders assess.

Buying a second residential property — whether for family use, a future retirement home or a base in another part of the country — raises specific questions around stamp duty, affordability and lender criteria. The second home mortgages guide covers these and explains how lenders treat a second property application differently from a primary residence.

Whether you are a first-time buyer, moving home or remortgaging, call 01202 155992 or contact Mortgage One to discuss your options and next steps.

Affordability, Deposits and Borrowing Capacity

Understanding how much you can borrow and what it will cost each month is fundamental to any residential mortgage decision. The mortgage affordability guide explains how lenders calculate affordability, including stress testing and committed expenditure. The borrowing based on salary guide covers income multiples — what they mean in practice and why different lenders arrive at different figures for the same applicant.

For a clear breakdown of how deposit size affects your rate, product access and loan-to-value ratio, the mortgage deposits explained guide covers the mechanics. The mortgage repayments guide explains how repayment and interest-only structures work and what drives the monthly cost.

Strengthening Your Application

If affordability is tight or your credit history has complications, there are specific routes worth understanding. The guarantor mortgages guide explains how a family member can support your application and what the obligations involve. The joint borrower sole proprietor mortgages guide covers a newer alternative where a parent or family member joins the mortgage for affordability purposes without going on the property title — avoiding additional stamp duty in most cases.

Applicants with adverse credit should read the bad credit mortgages guide, which covers what lenders consider, how the severity and age of credit issues affect your options and which lenders are more flexible. If you are buying a newly built property, the new build mortgages guide covers the specific lender requirements, incentive schemes and valuation considerations that apply. For guidance on whether a homebuyer survey or valuation is sufficient, the do I need a survey guide explains the different levels of survey and when each is appropriate.

Quick Reference and FAQs

If you are new to the mortgage process or want a concise overview before reading the detailed guides, the quick guide to mortgages covers the key concepts in plain language. For answers to common questions across the full range of residential mortgage topics, the complete mortgage FAQ guide provides a single reference.

To discuss your residential mortgage requirements or find out which guides are most relevant to your situation, call 01202 155992 or contact Mortgage One.

Back to All Guides

The information provided in this article is for general guidance only and does not constitute personal or regulated financial advice. If you’d like to understand what these moves could mean for you, speak to Mortgage One. We can explain your options and timings based on your specific circumstances.

Some Buy to Let mortgages are not regulated by the Financial Conduct Authority.

FAQs

1. How much deposit do I need for a residential mortgage?

The minimum deposit accepted by most lenders is 5% of the property value, although a larger deposit will typically give you access to a wider range of products and lower interest rates. Deposit requirements can vary depending on the lender, property type and your overall financial profile.

2. How do lenders decide how much I can borrow?

Lenders assess borrowing capacity using income multiples and detailed affordability calculations. They consider your gross income, regular outgoings, existing debts and committed expenditure. Different lenders apply different multipliers and stress tests, which is why the maximum you can borrow varies from one lender to another.

3. Can I remortgage if I am still within a fixed-rate period?

You can remortgage at any time, but if you are within a fixed-rate or introductory period, an early repayment charge may apply. Whether the savings from a new deal outweigh the charge depends on the remaining term, the charge amount and the rate difference. Mortgage One can help you calculate whether an early switch is worthwhile.

4. What is the difference between a guarantor mortgage and a joint borrower sole proprietor mortgage?

With a guarantor mortgage, a family member provides security or income support but does not go on the property title. A joint borrower sole proprietor arrangement adds a family member to the mortgage for affordability purposes while keeping them off the title deed. The key advantage of the latter is that the supporting family member typically avoids the additional stamp duty surcharge on second properties.

5. Will bad credit stop me from obtaining a mortgage?

Not necessarily. The impact of adverse credit depends on what the issue was, how long ago it occurred, the amount involved and whether it has been resolved. Some lenders are more flexible than others. A larger deposit, stable income and time since the credit event can all improve your options.

6. Do I need a survey when buying a property?

A lender will carry out a basic valuation to confirm the property is suitable security, but this is not a detailed inspection. A homebuyer survey or full building survey gives you a clearer picture of the property’s condition and potential issues. The right level of survey depends on the property’s age, type and condition.

7. Can I use a government scheme alongside a standard mortgage?

Some government schemes, such as shared ownership and previous Help to Buy equity loans, work alongside a standard residential mortgage from a participating lender. Eligibility criteria, property price caps and regional availability vary by scheme. Mortgage One can explain which options may be available to you.

8. How long does a residential mortgage application take?

The timeline varies depending on the lender, the complexity of your case and how quickly supporting documents are provided. A straightforward application can take four to six weeks from submission to offer. More complex cases involving unusual income structures, property types or credit history may take longer. Having documents prepared in advance can help reduce delays.