UK building safety reforms 2026: new chief adviser appointed
A new independent Chief Construction and Scientific Adviser starts work as the Building Safety Levy takes effect. Here is what both mean for flat owners and buyers.
Key points
- Professor Sergio Cavalaro has been appointed Chief Construction and Scientific Adviser on a three-year term, working full time.
- The Building Safety Levy came into force on 1 October 2026 and applies to new eligible residential developments over 10 units.
- The government expects the levy to raise around £3.4 billion over ten years to help fund the removal of dangerous cladding.
- The announcement sets no remediation deadlines, so leaseholders should keep pressing their own landlord or managing agent.
The government has appointed an independent Chief Construction and Scientific Adviser, a new post at the centre of UK building safety reforms 2026, as the Building Safety Levy comes into force. Professor Sergio Cavalaro, of Loughborough University’s School of Architecture, Building and Civil Engineering, takes the role on a three-year term, according to GOV.UK.
The appointment is one of the recommendations of the Grenfell Tower Inquiry report that the government says it is now implementing. The fire in 2017 killed 72 people and, in the government’s words, exposed profound failings in building safety.
What the building safety chief appointment means for construction
The Chief Construction and Scientific Adviser, known as the CCSA, will give independent construction, engineering and scientific advice on the safety, quality and resilience of buildings. The role also covers productivity across the built environment sector. It sits within the Ministry of Housing, Communities and Local Government and forms part of the wider network of government scientific advisers.
According to GOV.UK, the adviser will support delivery of the remaining Inquiry recommendations and regulatory reform. The post is meant to act as a bridge between government, regulators, industry, professional and trade bodies, academia and residents.
Professor Cavalaro will work full time and will spend the next month alongside the Interim Chief Construction Adviser, Thouria Istephan, for a handover. He was appointed through an open Civil Service recruitment process. In his own statement he said he would provide “independent advice and constructive challenge”.
Building safety levy 2026: what has started
The Building Safety Levy is a tax on new eligible residential developments of more than 10 units. It applies to new building control applications on eligible new residential developments and on eligible purpose-built student accommodation. It came into force on 1 October 2026.
The government says the money will support building safety works and ensure the industry contributes to fixing defects while protecting leaseholders and taxpayers. It expects the levy to raise around £3.4 billion over the next ten years.
| Item | Detail |
|---|---|
| In force from | 1 October 2026 |
| Applies to | Eligible new residential developments over 10 units, and eligible purpose-built student accommodation |
| Expected income, ten years | Around £3.4 billion |
| Simple yearly average (our calculation) | Around £340 million |
The yearly figure is our own division of the government’s ten-year estimate. It is not an official forecast, and actual receipts will depend on how many eligible schemes start.
Who is affected by the construction industry reforms
Developers of eligible new schemes are the group directly charged. The sources do not set out the levy rates or say how any cost might be passed on, so buyers of new flats should not assume a particular effect on prices.
Leaseholders in buildings with defects are the intended beneficiaries. The government says the levy is part of making the industry contribute to fixing safety defects, with the aim of shielding leaseholders and taxpayers from the bill. The £3.4 billion is described as funding to remove dangerous cladding.
Residents more broadly are also named in the CCSA’s remit. The adviser is expected to act as a link to residents as well as to industry and regulators. Professor Cavalaro has said he is committed to working with the Building Safety Regulator, which is chaired by Lord Roe, and across the wider sector.
Support, scrutiny and what the announcement leaves out
Support in the announcement comes from government and its advisers. Baroness Blake, Minister for Building Safety, Fire and Resilience, said Professor Cavalaro “will play a vital role in shaping our reforms”. Professor Dame Angela McLean, the Government Chief Scientific Adviser, said his expertise “will be of great value”. Lord Roe said the Building Safety Regulator welcomed the appointment to what he called a “critical role”.
The source material contains no comment from leaseholder groups, developers or opposition parties, so we cannot report their views. It also does not say how many buildings still need remediation, set deadlines for completing the work, or list the regulatory changes the adviser will help shape. Readers should treat the appointment as a statement of direction rather than a change to their own position.
The professor is a civil engineer with a PhD in construction engineering. According to GOV.UK, he played a central role in the structural evaluations of reinforced autoclaved aerated concrete, known as RAAC, and has led work on modern methods of construction and on repair and remediation approaches.
What to do now
Nothing in the announcement requires action from individual owners. There are still sensible steps. Leaseholders in a building with safety defects can ask their managing agent or freeholder for the current remediation plan and the next dated milestone, and keep the replies in writing.
Buyers of new flats can ask the developer whether the scheme falls within the levy and whether it was submitted for building control on or after 1 October 2026. A conveyancing solicitor can advise on the answer and on any wider safety paperwork.
For the next few weeks the main event is the handover between Ms Istephan and Professor Cavalaro. Further detail on regulatory reform would be expected from the Ministry of Housing, Communities and Local Government, but the sources give no dates.
Your questions answered
What are the key changes to building regulations in 2026?
The announcement does not list specific changes to the regulations. What it confirms is a new independent adviser who will help shape regulatory reform and support the remaining Grenfell Inquiry recommendations. It also confirms the Building Safety Levy now applies to eligible new building control applications.
What is the building safety levy 2026?
It is a tax on new eligible residential developments of more than 10 units and on eligible purpose-built student accommodation. It came into force on 1 October 2026. The government expects it to raise around £3.4 billion over ten years to help fund building safety works, including removing dangerous cladding.
What are the key changes to housing legislation in 2026?
The sources for this story do not cover housing legislation beyond building safety. On that front, the changes confirmed are the levy coming into force and the appointment of the Chief Construction and Scientific Adviser. Other housing measures would need to be checked against separate government announcements.
How this article was produced
This story was researched, written and fact-checked by the Reported.News AI newsroom and edited by Anthony Ivahand, our AI Property desk editor. Every claim is checked against the sources listed below. Our Editors, Jack Shaw, James Smith, Matthew Price and Suzy Eaton, oversee everything we publish. Read how we report.
Verification status
Sources (1)
- Chief Construction and Scientific Adviser appointed to improve building safety (GOV.UK, 6 Oct 2026)
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Desk View · Opinion · Anthony Ivahand (AiProperty)
An adviser does not fix a single flat, and nothing in this announcement gives leaseholders a deadline. Still, pairing a funded levy with an independent post is a sensible combination: one supplies money, the other expertise and, in Professor Cavalaro's words, constructive challenge. The test is whether that challenge becomes visible and whether remediation actually speeds up. Residents should judge the reforms by completed repairs, not by job titles or by a headline figure of £3.4 billion.
Opinion from our AI property desk, based on the verified facts above.
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