How Dilapidations Are Calculated in Practice

Dilapidations numbers can look frightening when they land in your inbox. A schedule arrives, every item has a cost next to it, and the total can feel like it has been pulled from thin air. Tenants often assume the figure is final. Landlords often assume the tenant will either pay or carry out the works. In reality, the calculation behind a dilapidations claim is more layered than most people expect.

A proper claim should be based on the lease, the property condition, and the realistic cost of putting breaches right. But even when a claim is prepared professionally, there are still areas where assumptions creep in. That’s why understanding how dilapidations are calculated is useful, even if you plan to instruct surveyors. It helps you spot what is reasonable, what needs evidence, and what is likely to be negotiated.

This is also why early input through dilapidations survey advice tends to save money, because a claim becomes a discussion based on facts rather than a stressful reaction to a headline figure.

It starts with the lease, not the defects

The first step in any calculation is establishing what the tenant is actually obliged to do.

Surveyors will look for repair clauses, decoration clauses, reinstatement obligations, and yield up wording. They’ll also check licences to alter, schedules of condition, and any side letters that affect responsibility.

This matters because the same defect can mean different things depending on the lease. A scuffed wall might be irrelevant in one lease, and a clear breach in another if redecoration is due at lease end. Calculations that ignore the lease are guesswork. Calculations that tie each item back to the right clause are far easier to defend.

The schedule is built item by item

A dilapidations schedule is usually structured line by line. Each line sets out:

• The alleged breach
  
• The lease clause relied on
  
• The remedial work required
  
• A cost allowance
  
• Often a note on why it’s considered a breach

The cost is usually the part that gets the most attention, but the breach and the clause are the foundation. If the clause is weak or the breach is not clearly evidenced, the cost line becomes easier to challenge.

Why offices often produce higher claims than expected

Office claims can jump quickly because the visible defects are only part of the story.

Ceilings hide services, data, fire stopping, lighting changes, and altered layouts. Floor boxes, raised access floors, and partition changes often have knock on costs. A tenant might see a simple open plan space. A surveyor sees a space that has been altered, adapted, and potentially needs reinstatement to a landlord standard.

This is why office schedules often include electrical testing, mechanical servicing, and reinstatement allowances, because landlords want the space to be safe, lettable, and documented properly.

Decoration and redecoration cycles are calculated differently

Decoration claims are usually calculated in a straightforward way, but they still cause arguments because they’re linked to lease wording.

If the lease requires redecoration at lease end, surveyors will often include full redecoration of the relevant areas, even if parts look acceptable. They will price for preparation, minor repairs, and finishes across walls, ceilings, and woodwork.

Tenants often want to argue decoration down to patches. Landlords often want consistency. The lease usually decides who wins that argument, but condition evidence and commercial reality also play a role in settlement discussions.

Reinstatement can be the biggest swing factor in the number

Reinstatement costs are often where the total claim jumps.

If partitions were installed and removed, ceilings patched, lighting altered, and cabling routed, reinstatement often involves more than simply taking items out. It includes making good to a consistent finish so the space can be marketed and re let.

The calculation here should consider what was altered, what consent was granted, what the licence to alter says, and what the landlord is asking for at lease end.

A common negotiation point is whether reinstatement is genuinely required or whether the landlord is likely to refurbish anyway. That debate is easier to handle when the lease obligations are clear and the landlord’s intentions are understood.

The legal and valuation limit that sits behind many negotiations

A lot of people only hear about this once they’re in dispute, but it influences many settlements.

In simple terms, landlords cannot always recover the full cost of works if those works do not reflect their actual loss. If a landlord is planning to strip out and refurbish immediately, some repair items may not translate into real loss. Tenants often use this as part of negotiation, landlords may push back, and survey evidence becomes critical.

This does not mean dilapidations can be ignored. It means the final settlement figure is often shaped by what is commercially sensible, not just by the theoretical cost of every repair.

If you would like to discuss more about construction consultants and contractors in London, please call our office on 020 7391 7100 or email us at surveyor@fandt.com.