The Mortgage Lending Reversal: What PTSB's 10% Growth Signals About Irish Construction Finance in 2025
A bank growing its mortgage book by 10% in a single year is not being cautious. It is making a bet, and the size of the bet tells you what it believes about Irish property in 2025.
Permanent TSB posted that 10% growth in mortgage lending against a backdrop of elevated rates, a planning system under serious strain, and a housing stock that cannot keep up with demand. That is not a bank dipping a toe in the water. That is a bank reading the same supply-and-demand gap that every developer in the country already knows and deciding the trade is worth making.
The opportunity here is real. The fear is that the credit flows to the same postcode it always has.
What the Numbers Actually Mean
A 10% rise in PTSB's mortgage book sounds like a percentage on a slide. It is easier to picture this way: if PTSB was writing roughly €1.5 billion in new mortgages annually before the growth, a 10% uplift is another €150 million in lending commitments in a single year. That is enough to finance roughly 400 new homes at the current average Irish new-build price of around €370,000. Four hundred homes. In a country that needs to build 50,000 a year just to keep pace.
The gap between what lending can signal and what the construction sector can actually deliver is where the story gets complicated.
Property overvaluation and rising energy costs are already compressing margins for developers working at the fringes of viability. A bank writing more mortgages does not automatically translate into more shovels in the ground if the underlying economics of building in Leitrim, Longford, or Roscommon do not stack up. Mortgage lending feeds buyer demand. Construction finance feeds supply. They are related but they are not the same instrument, and conflating them is how regional developers end up disappointed by what looks like good news from the top of the market.
The Dublin Gravity Problem
Irish construction finance has a Dublin gravity problem. The money knows where the exits are. A lender looking at two development sites, one in Dublin 8 and one in Athlone, sees comparable build costs but a faster, more liquid market in the capital for exit. The risk calculation pulls south and east.
This is not a character flaw in the banking system. It is rational lending behaviour. But rational lending behaviour is precisely how you get a housing crisis that is geographically concentrated. The CSO's own figures show population growth in commuter counties running well ahead of housing completions in those same areas, which means the demand is there but the finance does not follow it with the same confidence.
The binary here is stark: mortgage lending is a consumer product, construction finance is a producer product. PTSB growing its mortgage book is good news for buyers and for banks. It is only good news for regional developers if the same appetite is showing up in development finance and SME funding conversations, not just in the headline mortgage number.
Three Things a Regional Developer Should Do Right Now
The lending environment is shifting. Here is how to position for it rather than wait for it.
Step 1: Separate your mortgage market story from your funding story. A bank's mortgage growth tells you the end buyer has access to credit. Use that data when you approach a lender about a development loan. You are showing proven exit demand, not speculating. Lead with the sales evidence, not the planning permission.
Step 2: Build the viability case at current costs, not hoped-for costs. Construction cost inflation has eased slightly in 2025 but it has not reversed. A funder will stress-test your numbers harder than you expect. Build the model at today's labour and materials cost, add 10%, and if it still works, bring it to the table. If it only works at optimistic numbers, the problem is not the bank.
Step 3: Get in front of the credit decision before the planning process ends. Most regional developers wait until they have full planning before approaching a lender. That is the wrong order. Engage a funder at pre-planning stage, test their appetite for the site and the location, and use that feedback to shape both your planning application and your equity structure. The sequence matters because a bank that has already warmed to a project is a different conversation from a cold approach with a planning file.
What PTSB's Move Signals More Broadly
PTSB is not acting in isolation. Bank of Ireland and AIB have both signalled appetite for housing-related lending as a strategic priority. When three pillar banks are moving in the same direction at the same time, it is not a coincidence. They are reading government pressure on housing delivery, the Help to Buy scheme's continued popularity, and a macroeconomic signal that the rate environment has peaked.
The risk that sits on the other side of this optimism is planning capacity. Ireland's planning system remains a bottleneck that no amount of bank lending can dissolve. The €186m planning system paradox is not a metaphor. It is a practical ceiling on how much of the lending appetite can convert into built homes in a reasonable timeframe.
The Regional Developer's Real Question
The regional developer asking whether PTSB's growth is for them is asking the right question but perhaps the wrong version of it. The better question is: what does my project look like from across the desk in a credit committee?
If the answer is a site with strong local demand data, a proven builder track record, pre-sold or pre-let units, and a capital structure that does not rely on the lender carrying all the risk, then yes, the current lending environment has something for you. If the answer is a greenfield site in a commuter town with speculative demand assumptions and 100% debt funding required, the mortgage growth headline changes nothing.
Irish construction finance is loosening. The appetite is real. But appetite is not the same as availability, and availability is not the same as terms that actually work for a small developer trying to build twenty houses in Tipperary.
The banks are betting on Irish property in 2025. Regional developers who do their homework can make sure some of that bet lands on them.
