Self-build

Building your own home can be daunting, but with the right support it can lead to your dream home.

Why choose us for a mortgage?

Competitive rates

Our competitive interest options include variable rates and fixed rates up to 10 years. Use our calculator or view our rates table to help decide your rate.

Better BER, better fixed rate

Enjoy an EcoSaver fixed interest rate linked to your Building Energy Rating (BER). The better your BER, the better your fixed interest rate. Terms and conditions apply.1

Flexible repayments

Control your mortgage repayments to suit your lifestyle with our mortgage flexi-options. Terms and conditions apply.

Expert guidance

Our dedicated mortgage team are here to help make the process as seamless as possible.

Cashback offer

With Cashback Plus, you can get up to 3% of your mortgage drawdown back in cash (2% after you draw down and 1% after 5 years) on qualifying fixed rates. Terms and conditions apply.2

Interest-only option

Self-builders can choose to make interest-only repayments (if approved) for the first nine months. Repayments will be higher afterwards so the loan is repaid within the original term. You’ll need a life insurance policy for 103% of the loan. Terms and conditions apply.


Plan your budget with our mortgage calculator

Get an idea of how much you can afford to borrow and plan your budget with our mortgage calculator.

Try our mortgage calculator


Our mortgage guide for self-builders





Back to back wins!

Our first-time buyer mortgage has won the Bonkers.ie ‘Best mortgage for first-time buyers’ award two years in a row.

Start application now


What makes us different?

Manage your mortgage

We have two dedicated mortgage portals; one designed to help you view your mortgage details and the other to allow you make changes to your existing mortgage.

Manage my mortgage

Choose how you apply

You can talk to us about your mortgage journey online, in-branch, or over the phone.

Start application now

How much can you borrow?

If you’re a first-time buyer, self-builders can generally borrow up to 4 times your gross annual income (or combined income for joint applicants) and up to 90% of the property’s value. These limits can vary depending on your circumstances, so it’s best to talk to us about your options.

Property price€250,000
Mortgage amount 90% of €250,000€225,000
Deposit required 10% of €250,000€25,000


The lender is Bank of Ireland Mortgage Bank u.c. or bank of Ireland. Lending criteria and terms and conditions apply. A typical mortgage to buy your home of €100,000 over 20 years with 240 monthly instalments costs €613.16 per month at 4.15% variable (Annual Percentage Rate of Charge (APRC) 4.3%). APRC includes €150 valuation fee and mortgage charge of €175 paid to the Tailte Éireann. The total amount you pay is €147,482.50. We require property and life insurance. You mortgage your home to secure the loan. Maximum loan is generally 3.5 times gross annual income (4 times gross annual income for first-time buyers) and 90% of the property value. A 1% interest rate rise would increase monthly repayments by €53.89 per month. The cost of your monthly repayments may increase – if you do not keep up your repayments you may lose your home. Available to over 18s only. The mortgage will be subject to assessment of suitability and affordability. APRC calculations are based on the cost per month on a €100,000 mortgage over 20 years.

Mortgage-related products

Mortgage protection

Helps towards repaying your mortgage if you pass away or are diagnosed with a covered serious illness (if you choose this benefit). Giving peace of mind to you and your family.

Home insurance

Safeguard your home and personal belongings from fire, flood, or theft with comprehensive insurance. Home insurance gives you peace of mind that your property and belongings are fully protected.

MortgageSaver account

Helps first-time buyers save for a deposit and gives you €2,000 bonus interest (less DIRT) on your savings when you draw down your new mortgage with us.3


Homemade: A guide to building and renovating your home

This guide takes you through the self-build process, step by step, and tells you some of the key things you need to consider when building or renovating.

Download the Homemade guide


Frequently asked questions





Being mindful about borrowing

Your financial wellbeing is our priority. Discover more about the relationship between borrowing and debt to make informed decisions about your mortgage and future.

Learn more about borrowing and debt


Need a helping hand?

Get support and assistance from our mortgage specialists, 9am to 5pm, Monday to Friday. Choose your preferred way to talk to us.

You can call us

0818 365 345

We can call you

Request a callback

Meet a specialist

Book an appointment
Warning: If you do not keep up your repayments you may lose your home.
Warning: You may have to pay charges if you pay off a fixed-rate loan early.
Warning: If you do not meet the repayments on your loan, your account will go into arrears. This may affect your credit rating, which may limit your ability to access credit, a hire- purchase agreement, a consumer-hire agreement or a BNPL agreement in the future.
Warning: The cost of your monthly repayments may increase.
Warning: The entire amount that you have borrowed will still be outstanding at the end of the interest-only period.

Information and legal notices

Legal and regulatory information for mortgages.

View information and legal notices


1 The EcoSaver fixed interest rate provides customers with discounts based on their Building Energy Rating (BER). The better the BER, the better the discount. The EcoSaver fixed rate is available to all customers, if you're new to Bank of Ireland or already have a mortgage with us. You can get the EcoSaver fixed interest rate if you are borrowing to buy a home for yourself or your family, an investment property to let, or you're switching your mortgage loan to us from another lender. You must supply a valid BER certificate to take advantage of the EcoSaver fixed rate. Available with fixed rates only. Terms and conditions apply.
2 Up to 3% cashback is available to first-time buyers, movers and switchers who draw down a new mortgage. 2% cashback on draw down of the final stage payment. 1% bonus in 5 years subject to meeting the conditions of the mortgage. Additional 1% bonus not available for buy-to-let investment or equity release mortgages. Cashback is not available on High Value Mortgage fixed interest rates or standard variable rate. Terms and conditions apply.

HVM is the High Value Mortgage Fixed Interest Rate:
The High Value Mortgage Interest rates are a one, four, five or seven year fixed interest rate with no Cashback. The High Value Mortgage fixed interest rate is available to you if you are buying or building a property to live in as your home or are switching your mortgage loan to the Bank of Ireland Group from another mortgage lender outside our Group, AND you are borrowing €250,000 or more. View High Value Mortgage fixed interest rate for full details and terms and conditions.
3 Available for first-time buyers only who draw down a Bank of Ireland mortgage within 30 months of opening a MortgageSaver account. You must save a minimum of €200 for at least six consecutive months and save a minimum of €5,000 in total into your MortgageSaver account before drawing down your mortgage. MortgageSaver provided by Bank of Ireland. Bank of Ireland is regulated by the Central Bank of Ireland. Bonus interest is subject to Deposit Interest Retention Tax (DIRT) at the prevailing rate, paid after drawdown. Details at bankofireland.com/mortgagesaver. Terms and conditions apply.

Bank of Ireland Mortgage Bank u.c. trading as Bank of Ireland Mortgages is regulated by the Central Bank of Ireland.