Rent Pressure Zones in Ireland 2026: Are You Covered?

What Is a Rent Pressure Zone?

A Rent Pressure Zone (RPZ) is a designated area of Ireland where annual rent increases are capped by law. They were introduced under the Planning and Development (Housing) and Residential Tenancies Act 2016 in response to rapidly rising rents in high-demand urban areas — and they remain one of the most important protections available to Irish renters in 2026.

If your home is in an RPZ, your landlord cannot increase your rent by more than a set percentage each year, regardless of what the open market might support. This cap applies to both new and existing tenancies within the zone.

What Is the Current Rent Cap in 2026?

In 2026, rent increases in RPZs are capped at the lower of either 2% per annum or the rate of general inflation (measured by the Harmonised Index of Consumer Prices, HICP). In practice, with Irish inflation running below 2% for much of 2025 and early 2026, many landlords are limited to increases of 1–1.5%.

This means that on a €1,800/month apartment, a landlord in an RPZ can increase your rent by at most €36/month in a given year — not the €200–€300 increases that were common before RPZ protections were tightened.

Rent can only be reviewed once every 12 months, and your landlord must give you at least 90 days' written notice of any review.

Which Areas Are Designated as RPZs?

The RPZ designation covers a significant proportion of where Irish renters actually live. As of 2026, designated areas include:

Dublin: All 4 local authority areas (Dublin City, Dún Laoghaire-Rathdown, Fingal, South Dublin) — plus most of the greater Dublin commuter belt including Wicklow, Kildare, and Meath towns
Cork: Cork City and large parts of Cork County, including Carrigaline, Cobh, Ballincollig, and Midleton
Galway: Galway City and parts of Galway County
Limerick: Limerick City and adjacent areas
Waterford: Waterford City and surrounding areas
Many other large towns and suburban areas designated individually by the RTB based on rent inflation data

The RTB reviews and updates the RPZ list regularly. The full, up-to-date list is available on the RTB website at rtb.ie.

Does the RPZ Apply to New Tenancies?

Yes — and this is a critical point that many renters misunderstand. The RPZ cap applies to the setting of rent at the start of a new tenancy as well as to increases during an existing tenancy. A landlord cannot reset the rent to market rate between tenants if the property is in an RPZ — they are limited to charging no more than the previous rent plus the applicable cap.

There are some limited exceptions — for example, where a property has undergone substantial refurbishment costing at least €10,000 and resulting in a significant improvement in the property's BER rating. But these exceptions are strictly defined and require documentation.

What If My Landlord Overcharges?

If you believe your landlord has increased your rent beyond the RPZ cap — or has reset the rent between tenancies in breach of the rules — you have the right to challenge this through the RTB.

Steps to take:

Calculate what the permitted rent increase should be. Use the RTB's Rent Pressure Zone Rent Calculator at rtb.ie to determine the maximum lawful rent for your property.
Write to your landlord. Formally notify them in writing that you believe the rent increase is unlawful and request that it be corrected. Keep a copy of everything.
Apply to the RTB for dispute resolution if your landlord does not respond or refuses to correct the issue. The online application fee is €30. The RTB has the power to order rent reductions and award compensation.

The RTB has significantly increased enforcement activity in recent years. Landlords found to be in breach of RPZ rules can face fines and be required to refund excess rent paid.

What About Properties Not in an RPZ?

If your property is not in a designated RPZ, there is currently no statutory cap on rent increases. However, your landlord is still subject to the 12-month review rule (rent cannot be increased more than once per year) and must give 90 days' written notice of any review.

The government has periodically discussed extending RPZ-style protections nationwide, but no such extension had been enacted as of May 2026. If you live outside an RPZ and face a large increase, your options are more limited — but you can still dispute a rent review through the RTB if you believe the proposed rent is above open market rates.

Key Takeaways

If you live in an RPZ, your rent can only increase by the lower of 2% or HICP inflation per year
The cap applies to new tenancy rent-setting as well as increases during a tenancy
Your landlord must give 90 days' written notice of any rent review
Rent can only be reviewed once every 12 months
Use the RTB's online calculator to verify any proposed increase
If your landlord overcharges, you can dispute it with the RTB for €30

Knowing your RPZ status before you sign a lease — and during your tenancy — is one of the most practical steps you can take to protect your rental budget. Check the current RPZ list on the RTB website, and if in doubt, contact Threshold (threshold.ie) for free advice.