Welcome to your clear and simple guide to property investment. If you are thinking about stepping into the rewarding world of real estate, you are in exactly the right place. Welcome to Kierten Kooner, your expert buy to let mortgage adviser based in Kettering.
Investing in bricks and mortar is a fantastic way to build long term wealth. Whether you are a brand new investor or already have a growing property portfolio, getting the right financial advice is absolutely vital. Buying a rental property is a big step, and the complex world of finance can sometimes feel overwhelming. That is exactly where I come in. I am here to make things incredibly easy for you, providing clear, professional support to help you secure the very best mortgage deals available today.
What is a Buy to Let Mortgage?
When you are buying a property to rent out to tenants, you simply cannot use a standard residential mortgage. Instead, you need specific buy to let mortgages designed exclusively for property investors. Lenders view these products differently because your ability to repay the loan relies heavily on the overall success of the investment.
Residential Mortgage versus Investment Finance
Understanding the difference between a normal loan and an investment loan is a very important first step.
- Residential Mortgage: This is designed for the home you actually live in. Banks look very closely at your personal salary to see if your regular monthly payments are affordable alongside your normal living costs.
- Investment Finance: This is designed specifically for a rental property. The absolute most important factor is the potential rental income. Lenders want to be completely sure the rent will comfortably cover the loan, even if interest rates were to rise.

Choosing the Perfect Property Location
When looking for a rental property, the location is perhaps the most vital thing to consider. You must think carefully about the type of tenant you want to attract. For example, if you want to rent to university students, you need to buy a house that is close to the campus or right in the middle of the city centre. However, if you are looking to attract a family, they will want a home situated near good local schools, public parks, and safe neighbourhoods. Alternatively, young professionals usually look for properties with excellent transport links, such as a nearby train station or a quick route to the main motorway. Taking the time to understand your target tenant will help you pick the perfect location. This ensures your property stays rented out all year round, providing you with a steady and reliable income.
Understanding Key Lender Criteria
Before you start viewing houses, you need to know if you are eligible for a buy to let loan. Every bank has its own specific lender criteria, but here are the main rules that apply across the market:
- Minimum Income: Most lenders want to see that you earn at least twenty five thousand pounds a year from your normal job. This proves you have a financial safety net.
- Credit History: You need a strong track record of paying off your debts on time to access the very best interest rates.
- Age Limits: You usually need to be at least twenty one years old. However, I have access to specialist lenders who are incredibly flexible regarding age limits.
The Importance of the 25 Deposit
For a normal home, you might only need a small five or ten percent deposit. However, for buy to let properties, lenders see the investment as a slightly higher risk. This means they require a much larger initial investment from you.
In almost all cases, you will need a solid 25 deposit to access the most reliable products. Having a 25 deposit gives the bank complete confidence in your commitment. If you are fortunate enough to have an even larger deposit, you will unlock even better mortgage deals with significantly lower costs.
Understanding Rental Yields
You might hear the term rental yield quite often when discussing property investment. Put simply, a rental yield is the percentage return you get on your property from the rent you collect. To calculate a basic yield, you take the total rent you expect to receive over a whole year and divide it by the total purchase price of the property. Knowing your expected yield is incredibly important because lenders use this exact figure to decide if they will give you a loan. A higher yield means the investment is much more profitable. As your adviser, I will help you look at these numbers closely so you can clearly see whether a property is a strong financial choice before you commit any money.
Exploring Your Mortgage Options
When reviewing your mortgage options, you will quickly find many different choices. The right one depends entirely on your personal goals.
Interest Only versus Repayment
- Interest Only: With this method, your monthly payments only cover the interest charged by the bank. You do not pay off the original loan amount during the term. This keeps your monthly payments incredibly low and vastly increases your immediate cash profit. This is the most popular choice for investors.
- Repayment: You gradually pay off the main loan along with the interest. While you will eventually own the property outright, your monthly outgoings will be much higher, which can restrict your available cash flow.
Fixed Rate versus Variable Rate
- Fixed Rate: Your interest rate stays exactly the same for a set number of years. This means your payments will not change, making it incredibly easy to budget and calculate your true profits.
- Variable Rate: Your interest rate can go up or down based on the wider economy. If rates drop, you save money instantly. If rates go up, your payments will increase.

Tax and Limited Companies
Buying an investment property comes with different tax rules compared to buying a normal home. For instance, when you purchase a rental property, you will have to pay an extra stamp duty surcharge. This is an additional government tax placed specifically on second homes and investment properties. Furthermore, the rent you collect is classed as taxable income.
To manage these costs, many modern investors choose to set up a limited company to buy and manage their properties. Buying through a limited company can sometimes offer better tax rates and make it much easier to grow a large portfolio over time. While I can find you the perfect limited company mortgage, I always highly recommend speaking with a qualified tax expert to understand exactly how these rules affect your personal finances.
The Mortgage Application Process
The official mortgage application for an investment property requires a lot of detail. As your dedicated adviser, I manage this entire process for you to remove all the heavy stress.
- Initial Chat: We discuss your grand goals and look closely at the potential rental income.
- Market Search: I search the entire market to find the perfect product that fits your exact needs.
- Paperwork: I handle all the complex paperwork and speak directly to the banks and estate agents on your behalf.
Having a professional handle your application speeds up the entire journey and severely reduces the chances of an unexpected rejection.
Managing Your Property
Once you have the keys, you need to decide how to manage the property. You have two main choices. You can manage it yourself, which means you deal directly with the tenants, collect the rent, and arrange all the necessary repairs. This saves you money but takes up a lot of your free time. The second option is to hire a professional letting agent. An agent will find the tenants, handle all the legal paperwork, and fix any problems that arise. While they charge a monthly fee, using an agent removes almost all the day to day stress of being a landlord, allowing you to simply enjoy the financial rewards of your investment.
Advice for New Investors
If you are new to the property market, you are part of a group known as first time landlords. Banks sometimes look slightly closer at your application because you do not have previous experience managing tenants.
However, you absolutely must not let this worry you. Many fantastic lenders actively welcome new investors. The true secret to success is being well prepared. I will help you build a strong, credible business case that shows you understand the local market and the expected rental yields.
The First Time Buyer Challenge Being a completely new first time buyer and wanting to buy an investment property creates a very unique challenge. Most high street banks strongly prefer you to own your own residential home first. However, we have direct access to special lenders who are perfectly willing to help you. It simply requires a flawless application, which I will help you build from the ground up.
The Value of a Mortgage Broker
You might wonder why you should use an independent mortgage broker instead of just going to your local bank.
- Huge Choice: A bank can only ever offer you their own limited range of products. I work with well over one hundred and twenty lenders across the country.
- Better Deals: This massive market access means I can find specialist solutions and highly competitive rates that are totally hidden from the general public.
- Unbiased Advice: My only loyalty is to you and your success. I will always steer you towards the most cost effective solution available.
Maximising Profits and Protecting Your Investment
Building a highly successful portfolio requires careful planning. We will look incredibly closely at the type of property you are buying to ensure the income easily passes the strict stress tests required by the banks.
Once you own the property, you must protect it. If your tenants suddenly stop paying rent, or if the house is damaged by a storm, you still have a legal obligation to pay the bank. Getting the right landlord insurance is a vital part of the process. I offer comprehensive advice to keep your financial future completely secure.

Start Your Property Journey Today
Buying a property does not have to be a stressful experience. With the right knowledge and expert support, the property market offers truly incredible rewards.
If you are looking for an expert adviser who genuinely cares about your personal success, please get in touch with my team today. We offer a completely free, no obligation chat. We can meet in person in a relaxed setting, speak over the phone, or connect via a video call at a time that suits you.
Let me help you find the perfect finance, secure the best rates, and build a highly profitable portfolio together. Contact my friendly team today and take that exciting first step.



