BNG update: exemptions and further consultation

Blueprint displaying a detailed architectural floor plan, showcasing rooms, corridors, and spiral staircases. Grids and lines indicate measurements and sections. Text includes numbers and labels like "SALON."

Following the 2025 public consultation into improving the implementation of biodiversity net gain (BNG) for minor, medium and brownfield development, the Government has announced the following:

  • Removal of the self and custom build exemption. The Government expects that small scale single dwellings will be covered by the new area based exemption.
  • The Government announced in December 2025 a new 0.2 hectare area-based exemption for all applications, regardless of the development type. The existing de minimis exemption will continue to apply at this stage.
  • Temporary planning permissions granted for a maximum of 5 years will be exempt from the BNG regime.
  • Amendments to the biodiversity gain hierarchy for minor development, placing off-site biodiversity gains on the same preference as enhancement and creation of onsite habitat. 

All of the above are now expected to take effect before 31 July 2026 (subject to parliamentary scheduling) with draft legislation being tabled by DEFRA. 

A new consultation has also now been launched on an exemption for residential development on brownfield land, closing in June 2026. The Government expects to bring forward any amendments arising from that consultation later in 2026. 

The Government has reiterated its commitment to the BNG regime and these new announcements appear to show an attempt to strike a balance between this position and its commitment to support development, particularly in respect of house-building targets. From a local authority perspective, these amendments are likely to mean determination of smaller applications can progress faster without consideration of the requirements of the BNG regime. 

The government remains committed to BNG and recognises the importance of BNG in delivering nature-positive homes and infrastructure that this country needs.

https://www.gov.uk/government/consultations/improving-the-implementation-of-biodiversity-net-gain-for-minor-medium-and-brownfield-development/outcome/government-response-and-summary-of-responses#government-response-part-1-improving-exemptions

The Future Buildings Standard is here: what do commercial real estate investors/developers need to know?

Vertical garden flourishing on a building facade, with lush green plants covering multiple levels, set against a backdrop of tall glass skyscrapers.

Many of us will have read headlines in the press this week about the launch of the updated Future Homes Standard, which mandates zero carbon technology (e.g. solar panels, heat pumps) on most new domestic homes.

This is an important step and has been well received but this week has also seen, after a long wait and with somewhat less fanfare, the announcement of the Future Buildings Standard (FBS) for non-domestic buildings.

What is it and how did we get here? 

As mentioned in the Solar Roadmap the Government has identified the key contribution that rooftop solar on non-domestic buildings can make in the road to net-zero. The Roadmap also envisages that the Building Regs regime will be the most reliable route for scaling up rooftop solar (as with domestic buildings and the ‘Future Homes Standard’).

In short, the FBS introduces mandatory solar PV (amongst other energy performance requirements) for new buildings via Part L of the Building Regulations in England.

What does this mean for commercial real estate?

New non-domestic buildings in England will be required to produce significantly lower carbon emissions than under existing regulations, specifically:

Non-domestic buildings (e.g. offices, warehouses, retail buildings) must incorporate solar panels equivalent to 40% of the building’s foundational area.

Other points to note:

  • Transitional arrangements apply to existing projects where an initial notice or application for building control approval has been submitted before 24 March 2027 (as long as that work starts before 24 March 2028).
     
  • The updated Regulations will apply to ‘higher-risk buildings’ (using the Building Safety Act definition) from 24 September 2027 (rather than the 24 March 2027) and different transitional provisions apply depending on whether a valid Gateway 2 application has been made before this date. Additionally, HRBs are exempt from the solar PV requirement.
     
  • Buildings containing accommodation which is not ‘self-contained’ (e.g. hotel rooms and student accommodation which do not have their own entrance, kitchen, bedroom, living space) will be assessed in line with the regulations for non-domestic buildings rather than domestic.
     
  • These requirements do not apply to:
    • Listed buildings or buildings in a conservation area if compliance would unacceptable alter the building’s character or appearance.
    • Buildings used primarily or solely as places of worship,
    • Temporary or modular/portable buildings (planned to be used for two years or less).
    • Industrial/workshop/agricultural buildings with no or limited energy demand for heating or cooling systems.
    • New and existing non-domestic buildings with less than 50 square meters of useful floorspace.
    • Carports and covered yards below certain sizes. 

Key dates:

  • 24 March 2027 – commencement of the FBS for most non-domestic buildings excluding higher risk buildings (HRBs).
  • 24 September 2027 – commencement of the FBS for HRBs.
  • 24 March 2028 – end of transitional arrangements for non-HRBs.

Final thoughts:

We welcome the Government publishing their response on the Future Buildings Standard and the continued recognition that rooftop solar on non-domestic buildings has a big part to play in reducing our reliance on gas and oil – particularly in light of recent events in the Middle East.

Nevertheless, a variety of challenges remain for landlords and developers looking to implement rooftop solar projects into their portfolios, including Grid connections, tenant engagement, concerns around rooftop structures but also viability/financing concerns. The withdrawal of VAT rebates on Chinese exported PV panels from 1 April 2026 is going to add significant costs to the cost of new PV panels.

The Future Buildings Standard is, therefore, a good start but is just one piece of a rather complicated puzzle. Click here to visit our commercial real estate page.

When data centres become targets: a legal wake‑up call on resilience, data sovereignty and energy security

Skyscrapers rise into a cloudy night sky, their windows glowing with interior lights. Nearby buildings reflect on the glass surface, creating an urban atmosphere.

Recent attacks on data centres during the ongoing conflict involving Iran underline a stark reality. Data centres are no longer just commercial assets. They are strategic infrastructure.

Their targeting reflects how deeply digital infrastructure is embedded in modern economies. Banking systems, healthcare, logistics, government services and AI platforms all rely on uninterrupted access to data. When data centres fail, the consequences are immediate, wide‑ranging and often legally complex.

For businesses, developers and investors, this marks a shift. Operational resilience, data sovereignty and energy security are now legal and strategic considerations, not simply technical ones.

Resilience is becoming a legal obligation

Historically, resilience was addressed through service levels and technical design. That position is changing rapidly.

In the UK, data centres have been designated Critical National Infrastructure, and forthcoming reforms to the cyber and resilience regime will bring large data centres directly within the scope of regulatory oversight. Operators will be expected to demonstrate appropriate and proportionate measures to manage physical, cyber and operational risk, alongside mandatory incident reporting.

From a legal perspective, this raises key questions:

  • How resilience obligations are allocated between landowners, developers, operators and occupiers.
  • Whether existing leases, options, development agreements and collateral warranties adequately address business continuity, outages and force majeure.
  • The extent to which resilience commitments should be reflected in planning conditions, infrastructure agreements and funding documentation.

Standards such as ISO 22301 (Business Continuity) and ISO/IEC 27001 (Information Security) are increasingly relevant as reference points when assessing whether resilience measures are reasonable or market standard. This is particularly so in disputes, regulatory scrutiny or transactional due diligence.

Data sovereignty moves from policy to property

The conflict also sharpens the focus on where data is stored and under whose control.

Data sovereignty is no longer driven solely by data protection law. Geopolitical risk, sanctions exposure and national security considerations are influencing decisions about site selection, ownership structures and operational control of data centres.

For the UK and EU, this is accelerating demand for:

  • In‑country and sovereign data centre capacity.
  • Greater scrutiny of foreign ownership and control.
  • Contractual restrictions on data location, access rights and cross‑border failover arrangements.

From a property and development perspective, this has implications for planning strategy, investment structuring, joint ventures and long‑term asset value, particularly where sites are intended to support public‑sector, regulated or sensitive workloads.

Energy security becomes part of resilience

Recent events in the Middle East underline a further and often under‑appreciated risk. Data centre resilience is inseparable from energy security.

The current conflict involving Iran has driven a sharp increase in global oil prices, compounded by Qatar’s unprecedented decision to halt oil production. That development alone has exposed the fragility of global energy supply chains and the speed at which geopolitical events can translate into economic and operational instability. For infrastructure reliant on continuous, high‑volume power, the implications are immediate.

In this context, energy strategy is no longer just a question of cost or sustainability. Secure, controllable access to power is now a core resilience issue.

While the sustainability case for renewables is well established, the energy security case cannot be undervalued. On‑site and locally generated power, including wind, solar and tidal energy, can reduce dependence on volatile international markets and exposed fuel supply routes when paired with appropriate storage and grid balancing. Small Modular Reactors (SMRs) are also increasingly being examined as a potential long‑term solution for delivering stable, low‑carbon baseload power to energy‑intensive infrastructure such as data centres.

For developers, investors and occupiers, this reframes energy procurement as a legal and strategic risk issue. It raises questions around long‑term power availability, exposure to fuel and pricing shocks, planning and consenting strategy, and how energy risk is allocated contractually across ownership and operational structures.

In short, resilience is no longer just about surviving outages. It is about insulating critical infrastructure from geopolitical energy shocks. Sustainability remains vital, but the current conflict demonstrates that energy security now sits alongside decarbonisation as a primary driver of data centre strategy.

Resilience, sustainability and regulation are converging

Resilience cannot be separated from sustainability. For example, the EU’s Energy Efficiency Directive now imposes reporting and performance obligations on larger data centres, including energy usage, cooling efficiency and waste heat reuse.

While driven by climate policy, these requirements also support resilience by reducing strain on power, cooling and grid infrastructure. All of these are critical during periods of disruption. For developers, energy strategy is increasingly inseparable from resilience strategy.

What this means in practice

For those involved in developing, owning or operating data centres, the lesson is clear. Resilience, data sovereignty and energy security must be embedded at a legal and structural level, not retrofitted later.

That means:

  • Addressing resilience and power security at the site selection and planning stage.
  • Clearly allocating operational and energy‑related risk in contracts and funding documentation.
  • Treating regulatory compliance as a value‑preserving exercise, not a tick‑box.

The events in Iran may be extreme, but the signal is unmistakable. Data centres are now nationally significant assets. Their regulation, design and energy strategy are evolving accordingly.

Those who anticipate this shift will be better placed to manage risk, protect asset value and maintain trust in an increasingly uncertain world.

Cloud infrastructure was always theoretically vulnerable to kinetic warfare, but nobody had priced that risk in so far. Now that has to change

https://www.aa.com.tr/en/middle-east/iran-war-shows-data-centers-emerging-as-critical-targets/3852984