The Eye of the Needle: What Ireland Can Still Build

Ireland completed 72,568 homes in 2025, a record. The planning system granted roughly 400 residential schemes of ten or more units every year since 2017, and roughly 4,000 one-off houses on top of that. The grants haven't declined. What has changed is how reliably they convert into construction.

Mid-size schemes of 61 to 100 units commence at 68-76% across all three regions: Dublin, the commuter belt, and the rest of the country. Houses, apartments, and mixed schemes alike. These rates are lower bounds: building control data matching is incomplete, particularly in Dublin. But the same method is applied everywhere, so the gaps between size bands and dwelling types are informative. This is the band where the Irish housing market works, and it has been there since at least 2017.

Below it, small apartment schemes struggle: 10-to-30-unit apartments commence at 35% in the commuter belt and 47% regionally. Above it, everything struggles: schemes over 100 units commence at 9-33% outside Dublin. The viable band is narrow and it hasn't moved. What has moved is the penalty for missing it.

What fits through?

Two products reliably convert from permission to construction in Ireland.

The first is the one-off rural house. Roughly 4,000 are granted each year. They commence at 70.5% overall, with ABP involvement on just 2.5% and RZLT exposure on 1.8%. Processing takes 112 days. They live in an almost friction-free environment, and they deliver: Kerry 76%, Kilkenny 75%, Offaly 75%, Tipperary 74%, Galway 73%.

That last figure is worth pausing on. Tipperary one-off houses commence at 74%. Tipperary scheme housing of ten or more units: 42%. Same county, same planning authority, same building regulations. The friction that stalls scheme housing barely touches one-off houses.

The second product is the mid-size estate: 61-to-100 units, any dwelling type, any region. Houses at this scale commence at 68% regionally and 80% in the commuter belt. Mixed schemes: 73% regionally, 75% in the commuter belt. Apartments at this scale outperform smaller apartment schemes in every region, though outside Dublin the sample sizes are small enough that exact rates should be treated as indicative. The sweet spot is not about dwelling type. It is about scale.

What doesn't fit?

Small apartments. Schemes of 10 to 30 apartment units commence at 47% regionally, 51% in Dublin, and 35% in the commuter belt. These are the schemes that fall between the economics of a mid-size estate (where the per-unit overhead of navigating the system is spread across 60-100 units) and the simplicity of a one-off house (where there is almost no system to navigate).

Large schemes. Above 100 units, commencement drops to 9-33% in the commuter belt and regional areas. Dublin is the exception. During the SHD era, large schemes routed directly through ABP commenced at higher rates because they were backed by institutional capital. Outside Dublin, large schemes fail regardless of dwelling type.

Build-to-rent. BTR commencement has collapsed from roughly half of schemes in the 2019-2021 era to near zero for recent grants. The product that institutional investors designed for cheap money does not survive at current interest rates. Only 5-15 BTR schemes are identifiable per year, but the direction is unambiguous.

How wide is the gap?

The spread between the viable band and the rest has been widening. For schemes granted in 2018, the gap between the best-performing cell (houses 61-100 commuter, around 80%) and the worst (small apartments in the commuter belt, around 50%) was roughly 30 points. By 2022, the same comparison produces a 50-point spread.

The sweet spot itself hasn't moved. The 61-100 band has held at 13-18% of all grants since 2017, with no upward trend. The market is not contorting to fit through the needle. The needle has been there all along. What changed is that the penalties documented in Parts 1-6 of this series (the viability ceiling, the policy stacking, the system complexity, the optionality gap) have widened the gap between the viable band and everything else.

The apartment-house commencement gap, which runs 10-15 percentage points across comparable size bands, has been present since at least 2019. It is structural, not cyclical, and it persists in every region. But the gap is about scale as much as dwelling type: apartments at 61-100 units work. Apartments at 10-30 do not.

Where does the margin sit?

Commenced schemes in regional Ireland sell at a median new-build price of €325,000. The lower quartile is €284,000. The SCSI publishes a delivery cost floor of approximately €350,000, though this is calibrated for standard schemes and likely overstates costs for smaller regional builders.

Either these schemes are being built on razor-thin margins, or the actual delivery cost for a 30-to-60-unit housing estate in a regional town is lower than the national benchmark suggests. Either way, the gap between sale price and cost is narrow, and it is now widening. The Iran war (since 28 February 2026) has begun re-rating materials: US producer prices for aluminium and steel are up 39% and 21% year-on-year, the largest moves since the 2022 Ukraine shock. The bulk of the feed-through into Irish tender prices is still six to twelve months ahead, with the Ukraine precedent suggesting a 10-15% full-year cost uplift in the regional schemes already sitting closest to the floor.

A one-off house sold at €300,000 in Galway County faces the same cost pressure but carries none of the scheme-level complexity: no Part V obligation, no multi-unit compliance, no estate roads to be taken in charge, no apartment fire safety certification. The cost shock affects both products. The friction shock affects only one.

What the state is building

While the private market narrows, the state has stepped in. Social housing new-build delivery went from 604 units in 2016 to 9,089 in 2025. The biggest step-up was earlier, in 2016-2019, when social housing's share of completions rose from 3% to 13%. Since 2022 the share has plateaued at roughly 12.5%, with social housing growing at the same rate as total completions rather than expanding faster. Approved Housing Bodies now deliver more units than local authorities (4,215 vs 2,869). Part V contributions from private schemes reached 2,005 units in 2025, up from 523 in 2017.

These are new-build figures only, excluding approximately 6,000-8,000 additional social housing units per year from acquisitions and leasing. The state is not filling the entire gap left by the private market, but it is building the products the market can't deliver: apartments, urban schemes, the housing types that don't fit through the needle.

South Dublin County Council's own housing applications commence at 93% (Part 5). The council is the applicant, the planning authority, the Part V administrator, and the infrastructure provider in one. It sees through the walls between five systems because it is all five systems. This is the highest commencement rate for any developer type in the dataset.

The policy contradiction

National planning policy since the 2018 National Planning Framework has pushed compact growth, higher density, and transit-oriented development. The guidelines encourage apartments over houses, urban over suburban, density over sprawl.

The market delivers the opposite. The two products that reliably get built are one-off rural houses (4,000 per year, 70% commencement, almost zero density) and mid-size suburban estates (61-100 units, 68-80%, edge of town). The policy-preferred product (urban apartments above 100 units) commences at under 35% outside Dublin. The policy-discouraged product (the one-off rural house) is the most reliable housing product in the country.

This is not a criticism of the policy. Compact growth makes sense on environmental, infrastructure, and sustainability grounds. But the data shows the market cannot currently deliver it. The viable band and the policy aspiration do not overlap. Until the economics of apartment delivery change (through lower construction costs, lower interest rates, or direct state subsidy), the gap between what policy wants built and what actually gets built will persist.

What this means before you submit

If you are scoping a residential scheme, the data says the commencement sweet spot is 61-to-100 units across all dwelling types. Below 30, the per-unit friction overhead is high. Above 100, the financing and coordination burden is prohibitive outside Dublin. The dwelling type matters less than the scale.

If you are comparing sites across councils, the top-performing councils outside Dublin (Cork 66% on n=195, and a cluster of regional councils in the 60-74% range) share a common profile: average scheme sizes of 28-49 units, moderate ABP exposure (22-29%), and a mix of houses and apartments. Individual council rates carry wide confidence intervals and shift between queries, but the profile is consistent. Councils where the median new-build price sits below approximately €300,000 (Tipperary, Donegal, Offaly) struggle regardless of planning friction. The price floor binds before the process does.

If you are a one-off house applicant, the data says your commencement probability is 70% nationally and above 73% in most rural counties. ABP involvement is rare (2.5%) and processing averages 112 days. This is the lowest-friction development pathway in the Irish system.

Methodology

Scheme housing population. 1,906 residential permission grants of 10 or more units received between January 2018 and December 2022 across all 31 local authorities. Permission-type applications only (excluding EODs, compliance, retention). Dwelling type classified from proposal text: "apartment" without "house" = apartments; "house" without "apartment" = houses; both mentioned = mixed; neither = other. Approximately 20% of schemes fall into the "other" category (includes some ambiguous residential schemes, hotels, and nursing homes filtered by residential applications). The apartment-house gap is consistent across all reasonable classification boundaries but varies by 5-8pp in magnitude.

One-off houses. 21,999 residential permission grants classified via the rural one-off flag, received between 2018 and 2022. This AI-extracted field is populated for 21% of all applications; only true values are reliable. The one-off population is a subset of all single-dwelling rural grants and may undercount total one-off activity.

Commencement. Linked National Building Control Office records. Dublin linkage baseline approximately 23% versus 54-66% elsewhere. All headline scheme comparisons use data from all regions; Dublin-specific figures (where cited) are lower bounds. One-off house commencement rates are more reliable because they are overwhelmingly outside Dublin.

PPR prices. New-build sales within 500m of commenced scheme sites (post-commencement). PPR geocoding rate for new-builds is 98%. Regional median (€325K) is derived from 24,236 individual sales across 478 commenced schemes. The SCSI delivery cost floor (~€350K) is an external benchmark from the Society of Chartered Surveyors Ireland, calibrated to standard scheme housing and likely overstating costs for smaller regional developments.

The 61-100 sweet spot. This finding is robust: it holds across all dwelling types, all three regions, and for both one-grant and multi-grant developers. The band represents 13-18% of all grants since 2017 with no upward trend. The pipeline composition has not shifted toward the sweet spot. Council-level confidence intervals are wide (typically +/-13-17pp for councils with 30-55 grants) and individual council rankings should be treated as indicative.

Social housing. New-build only from DHLGH social housing delivery statistics (LA, AHB, and Part V new construction). Excludes acquisitions, leasing, and HAP tenancies which add approximately 6,000-8,000 units per year to total social housing delivery.

Figures deliberately excluded. The "activation cliff" (commencement declining from 65% to 49%) was dropped after critical review found this compares mature cohorts (2018-2021, 5+ years to commence) with immature cohorts (2022-2023, 2-3 years). At equivalent maturity, the decline is approximately 5-8 percentage points. Dublin houses 61-100 (n=10) and apartments 61-100 in the commuter belt (n=6 after recent reclassification) are not cited as headline figures due to small sample sizes; both sit within the broader 60-80% sweet-spot band. BTR year-on-year commencement percentages are not cited due to samples of 5-15 per year.

Sources