ESG and BER B Requirements for Irish Commercial Property

TL;DR

By 2026 Irish commercial property is repriced by its energy and ESG profile. EU CSRD, the EPBD recast, MEES-style minimum performance regimes and Irish lender ESG underwriting combine to create measurable yield gaps between BER-compliant and non-compliant assets, often 75 to 125 basis points for equivalent stock. The phrase 'stranded asset' is no longer hypothetical. This article covers the regulatory landscape, retrofit economics and asset-management strategy.

The regulatory landscape in 2026

EU CSRD

The Corporate Sustainability Reporting Directive requires large EU companies (and listed entities) to report on detailed ESG metrics across financial, social and environmental dimensions. CSRD reporting started in 2024 and expands progressively. Real estate is materially affected because tenant occupancy data, building emissions, and capex on energy retrofits all feed into CSRD-reporting tenants' disclosures.

EPBD recast

The 2024 recast of the Energy Performance of Buildings Directive tightens minimum energy performance standards across the EU. Transposition into Irish law is in progress through 2026 to 2030. Non-residential buildings will face progressive minimum performance requirements, with the lowest-performing 16 percent of stock targeted first.

Irish lender underwriting

Major Irish lenders increasingly require ESG performance data as a condition of finance. BER ratings, energy use intensity, and tenant green-lease clauses are now standard underwriting inputs alongside covenant strength. Non-compliant assets face higher debt margins or refuse-to-finance outcomes.

What 'BER B' means in practice

BER (Building Energy Rating) is the Irish equivalent of the EU EPC. Ratings run A1 to G. For commercial property in 2026:

A1 to A3: highest performance, new-build standard with passive design and renewables.

B1 to B3: the institutional minimum for prime commercial stock. Achievable through targeted retrofit on most well-located 1990s+ buildings.

C1 to C3: acceptable for secondary stock but increasingly difficult to finance and let to institutional tenants.

D and below: at material risk of becoming stranded — uneconomic to retrofit relative to the value of the building.

Retrofit economics

The typical cost of bringing a 1990s Irish commercial office from BER D to BER B in 2026 ranges from 100 to 300 euro per sq ft depending on existing M&E, fabric and tenant disruption. The economic return is twofold:

Yield compression on exit (75 to 125 bps), translating to 15 to 25 percent capital uplift versus a non-retrofitted comparable.

Headline rent uplift of 10 to 20 percent on subsequent letting events.

For most well-located assets the retrofit is value-accretive; for assets where retrofit cost approaches a high percentage of current value, demolition-and-rebuild may be the better economic answer.

Tenant ESG demand

Major occupiers — particularly law firms, financial services, professional services and global tech tenants — have publicly committed net-zero pathways and will not sign new leases on non-BER-compliant buildings. This is the demand-side reason for the yield gap: a non-compliant building has a structurally smaller tenant pool.

What asset managers do in 2026

For every asset under management, HPS Real Estate now runs:

A BER and energy audit at acquisition and every five years thereafter.

A retrofit timeline aligned with lease expiry dates (so the works can be done between tenancies where possible).

A GRESB-aligned data collection process where the asset belongs to a portfolio reporting to investors.

A green-lease addendum at every rent review and renewal — covering tenant data sharing, energy efficiency cooperation and waste / water performance.

The stranded-asset question

By 2030, the bottom quartile of Irish commercial stock (E, F, G BER ratings) is expected to be effectively unfinanceable and unlettable to institutional tenants. For owners of stock in this bottom quartile, the strategic options are:

Retrofit where economic.

Sell while there is still a market.

Repurpose (e.g. office to residential, retail to mixed-use).

Demolish and rebuild where land value supports it.

Doing nothing is not a strategy.

Frequently asked questions

When does the BER B requirement actually bite for Irish commercial property?

Progressively from 2026 onward through the EPBD recast transposition, and immediately in practice through lender underwriting and tenant demand. Institutional tenants in 2026 already insist on BER B or better for new leases on prime stock.

Is retrofitting Irish commercial property economic?

For most well-located 1990s-plus buildings, yes — the combination of yield compression (75 to 125 bps), headline rent uplift (10 to 20 percent) and continued financeability outweighs the retrofit cost. For deeply non-compliant buildings approaching the cost-to-value tipping point, demolition or repurposing is the better answer.

Does ESG affect Irish property valuations?

Materially. Equivalent BER A/B vs BER D buildings can show 75 to 125 basis-point yield gaps. Red Book valuations in 2026 explicitly call out ESG profile and retrofit liability as material assumptions.

What is GRESB and does it matter for Irish real estate?

GRESB (Global Real Estate Sustainability Benchmark) is the voluntary ESG benchmark used by global institutional fund managers. Irish funds and REITs increasingly participate; for portfolios reporting to international LPs, GRESB participation is effectively a requirement.

What is a stranded asset in Irish commercial property terms?

A building whose ESG profile makes it uneconomic to retrofit relative to its value, leaving it effectively unfinanceable and unlettable to institutional tenants. The bottom quartile of current Irish stock (E to G BER ratings) is at material stranded-asset risk by 2030.

HPS Real Estate provides asset management, valuations and development advisory with full ESG integration across Ireland and the UK. Contact info@hpsproperty.ie.