Owning a commercial property that cannot be used is stressful enough. Receiving a full business rates bill on top of that — for a building that is structurally unsafe, flood-damaged, or otherwise unfit for occupation — can feel deeply unfair. The good news is that the law does provide routes to relief, and in many cases the liability can be reduced substantially or removed altogether.

This guide explains the options available to owners and occupiers of uninhabitable commercial properties in England and Wales, and how to pursue them effectively.

What Does "Uninhabitable" Mean in a Business Rates Context?

For business rates purposes, a property is broadly considered uninhabitable when it cannot reasonably be occupied in its current condition. Common causes include:

• Structural damage — subsidence, roof collapse, fire damage, or other defects that make the building unsafe to enter or use
• Flood damage — water ingress that has rendered the premises unfit for occupation, whether from a one-off event or recurring flooding
• Severe disrepair — a building that has deteriorated to the point where occupation would be impractical or dangerous
• Contamination — chemical or environmental contamination requiring remediation before the property can be used
• Compulsory closure — a prohibition notice or enforcement order issued by a local authority, fire service, or other statutory body preventing occupation

The key distinction is between a property that is simply vacant (empty but usable) and one that genuinely cannot be occupied. The former attracts empty property rates after the initial exemption period; the latter may qualify for a different form of relief entirely.

The Rateable Value Route: Challenging the Assessment

The most powerful — and most underused — tool available to owners of uninhabitable properties is a challenge to the property's rateable value.

The rateable value is the figure the Valuation Office Agency (VOA) uses to calculate your rates bill. It is supposed to reflect the annual rental value of the property on the open market. If your property is in a condition that no tenant would pay to occupy, its rateable value should reflect that — potentially down to a nominal figure, or even nil.

When Can You Challenge on Grounds of Condition?

A rateable value challenge on grounds of physical condition is most likely to succeed when:

• The property has suffered a material change of circumstances — a significant physical event (fire, flood, structural failure) that has changed its condition since the last valuation
• The property's condition at the antecedent valuation date (the date used as the basis for the current rating list) was already poor, and the VOA's assessment did not reflect this
• Comparable properties in similar condition have been assessed at a lower rateable value

The Check, Challenge and Appeal (CCA) process is the formal route for disputing a rateable value. It has three stages:

1. Check — you submit factual information about the property, including its condition, to the VOA
2. Challenge — if the Check does not resolve the matter, you submit a formal Challenge setting out the grounds for a reduction
3. Appeal — if the Challenge fails, you can appeal to the independent Valuation Tribunal

A successful challenge can reduce your rateable value to reflect the property's true condition, cutting your rates bill accordingly — and potentially generating a backdated credit for overpaid rates.

What Evidence Do You Need?

The stronger your evidence, the stronger your case. Useful evidence includes:

• Structural surveys or engineer's reports confirming the nature and extent of the damage or defect
• Photographs documenting the condition of the property, dated where possible
• Correspondence with insurers, loss adjusters, or contractors relating to the damage
• Prohibition notices or enforcement orders from statutory bodies
• Flood risk assessments or records of flooding events from the Environment Agency or local authority
• Comparable evidence — rateable values of similar properties in comparable condition

An experienced rating consultant can help you identify the right evidence, present it effectively, and navigate the procedural requirements of the CCA process.

The "Completion Notice" and New Buildings

A separate but related issue arises with new buildings or properties undergoing major refurbishment. If a property is not yet complete — or has been stripped back to shell condition as part of a redevelopment — it may not yet be rateable at all, or its rateable value may be significantly lower than it will be once works are complete.

Local billing authorities can issue a "completion notice" to bring a new or substantially altered property into the rating list. If you believe a completion notice has been issued prematurely — before the property is genuinely capable of occupation — you can appeal against it.

Discretionary Relief: The Local Authority Route

In addition to the statutory routes above, local billing authorities have discretionary powers to grant relief from business rates in cases of hardship or other exceptional circumstances. This is not automatic and must be applied for, but it is worth pursuing — particularly where:

• The property has been rendered uninhabitable by an event outside the owner's control (flooding, fire, third-party damage)
• The owner is facing genuine financial hardship as a result
• The local authority has a policy interest in the area's regeneration or recovery

Discretionary relief decisions are made on a case-by-case basis and vary between authorities. Some councils have established specific relief schemes following major flooding events or other local emergencies.

The Empty Property Rates Trap

Even where a property is genuinely uninhabitable, billing authorities will often continue to issue rates demands unless the owner takes active steps to challenge the assessment or apply for relief. This is because the rating system operates on the basis of the property's assessed rateable value, not its actual condition — unless and until that assessment is changed.

This means that owners of uninhabitable properties can find themselves in a difficult position: paying full rates on a building they cannot use, while also bearing the cost of repairs or remediation. Acting promptly — and with specialist support — is essential to minimise the financial impact.

Common Mistakes That Cost Property Owners Money

Assuming the rates bill will be adjusted automatically. It will not. The VOA and billing authorities do not proactively reduce assessments when a property is damaged or becomes uninhabitable. You need to initiate the process.

Waiting until the property is repaired before challenging. A rateable value challenge can be submitted while the property is still in poor condition. In fact, acting early — before repairs are completed — gives you the best chance of securing a backdated reduction.

Accepting the initial empty property exemption and doing nothing more. The three-month (or six-month for industrial premises) initial exemption is just the starting point. If the property remains uninhabitable after that period, further relief may be available — but only if you pursue it.

Not keeping records of the damage. Dated photographs, survey reports, and correspondence with contractors and insurers are all valuable evidence in a rateable value challenge. Start gathering this material as soon as the damage occurs.

Trying to navigate the CCA process without specialist help. The process has strict deadlines, procedural requirements, and technical valuation arguments. Missing a step can significantly weaken your case or close off your options entirely.

How Hexagon Can Help

At Hexagon Commercial Rating Consultants, we specialise in reducing business rates liabilities for commercial property owners and occupiers across England and Wales. Our team holds IRRV Technician membership — the recognised professional qualification in rating and valuation.

We work on a strictly no win, no fee basis. Our fee is 20% of any savings or credits we achieve for you. If we do not reduce your liability, you pay nothing.

If your commercial property is uninhabitable — whether due to structural damage, flooding, fire, or any other cause — we can assess your position and identify every available route to relief. This includes:

• Reviewing your current rateable value and identifying grounds for a challenge
• Gathering and presenting the evidence needed to support your case
• Managing the Check, Challenge and Appeal process on your behalf
• Advising on discretionary relief applications to your local billing authority
• Ensuring you claim every exemption you are entitled to from the date the property became uninhabitable

Get a Free Assessment

If you are paying business rates on a property that cannot be occupied, contact us today for a free, no-obligation assessment. We will review your rates liability and tell you honestly whether we can help — and by how much.

Call us on 01707 880873, email [email protected], or complete our online enquiry form.