If you dream of building your own home, a self build mortgage could help make it a reality. Here’s how they work, how much you can borrow, and what insurance you need.
It’s a mortgage for people who are building their own home.
Self build mortgages work differently to regular mortgages:
You only pay interest on the amount you’ve drawn down from a self build mortgage, not the whole loan amount.
This varies depending on:
You’ll need at least a 10% deposit.
The maximum loan to value (LTV) is 90% of the site cost or value plus the cost of construction or 90% of the valuation on completion - whichever is the lower.
You’ll need at least a 20% deposit.
The maximum LTV is 80% of the site cost or value, plus the cost of construction or 80% of the valuation on completion - whichever is lowest.
If you have been given land or already own the site, it can be used as your deposit because it will be part of the overall value of the house when it’s built.
You’ll also need at least 10% of the total cost as a contingency for any unforeseen costs.
You can usually borrow 3.5 times your salary with self build mortgages.
Lenders need to be confident you can comfortably afford your mortgage, insurance and bills each month. You’ll also need sufficient savings to cover any unexpected build related expenses.
Our calculator: How much can I borrow? can help you work out how much you might qualify for and looks at the things that affect your borrowing.
For an accurate quote, you’ll need to speak to a lender and get a mortgage approval in principle. This is the amount they could lend you based on initial checks, but it’s not a mortgage guarantee.
These are the main lenders that offer self build mortgages:
Their lending criteria varies and your personal circumstances will be taken into account.
Some lenders offer the option of an interest only mortgage for the first 12 months, to help keep costs down in the first year.
The lending criteria for self build mortgages can be stricter than other types of mortgage.
This is due to costs and timeframes often being stretched and some projects sadly not completing - making them a high risk to lenders.
Employment checks are usually more stringent, and you’ll need proof of either:
Our guide: Preparing for a mortgage application has some useful tips and advice.
Before your mortgage can be approved, you’ll need to provide your lender with some documentation including:
*You can check the Citizens Information website for more information on planning permission, including the different types.
There is usually flexibility over the number of ‘stage payments’ you can receive, to best suit your build. This is when a payment is made to cover part of the build.
For example, if you’ve already bought the site, you’ll skip the first stage.
There are usually between 4-6 payment stages. They may include when you:
Each stage of the build must be certified by an official certifier before a payment is released. Payments are requested each time via your solicitor.
It’s vital to protect the funding for your home as well as the actual property - both during construction and when it’s fully complete and furnished. Here are the insurances you need:
This protects your home while it’s being built as well as the site and property, from damage caused by:
It can also include public and employers liability if you opt for direct labour rather than paying a contractor to manage the project.
There are mainly financial brokers that offer self build insurance, also known as buildings under construction insurance.
Check that your lender doesn’t include this insurance for free before shopping around for it.
Having mortgage protection is a condition of getting a mortgage, including self build mortgages. It protects both you and the lender throughout the mortgage term, by paying off the loan if you die.
Our mortgage protection insurance guide has all you need to know the different types, how they work, and how to find the right cover.
This type of insurance is also compulsory with most lenders. It covers the physical building itself including the roof, walls, permanent structures, and outbuildings.
Our guide to buildings insurance explains the features further and how to choose the best policy.
There are some insurances that aren’t compulsory with a mortgage, but they could offer additional financial protection, depending on the cover you already have.
If you’re still unsure what insurance you need, speak to a financial adviser.
Find the best first time buyer and home mover mortgage deals in Ireland using our comparison.
Yes, self builds are included in the HTB scheme but you’ll need to meet other criteria too:
The approved valuation of the property must not be over €500,000.
You’ll also need to use a Revenue approved developer and contractor.
If you qualify, you can claim €30,000 or 10% of the property’s completion value - whichever is lower. The Help to Buy incentive will be fully reviewed in 2022.
Yes. If you’ve bought a site with a linked agreement to build a property on, you must pay stamp duty on the total site cost and construction cost, excluding VAT.