The Questions to Ask Before You Exchange

Commercial property acquisition is where returns are made — and where costly assumptions quietly take root. The technical due diligence you commission before you exchange shapes everything that comes after.

The deal looks good on paper. The yield is there, the location is right, the vendor seems motivated. But commercial property is physical, and the physical condition of an asset has a way of surfacing at exactly the wrong time.

The landlords and investors who consistently make good acquisitions aren’t just better at reading the market. They’re better at understanding what they’re actually buying, which is where a pre-acquisition survey earns its place in every transaction.

👉 What commercial building due diligence doesn’t always capture

A financial model will show projected income, yield and return on capital. It won’t show you the condition of the building fabric — a roof concealing years of deferred maintenance, defects from poor past repairs or inherent material failure, structural movement from previous alterations, deteriorating brickwork or concrete, or the impact of works carried out close enough to the building to have caused damage. It won’t show you the compliance exposure in the M&E systems, or the service charge deficit the previous owner has been quietly managing around.

These aren’t hypothetical risks. They’re the kinds of issues that regularly surface post-acquisition and erode returns that looked solid at heads of terms. The difference between finding them before exchange and after can be hundreds of thousands of pounds.

The best commercial property acquisitions are rarely the cheapest — they’re the ones where the buyer knew exactly what they were getting and priced accordingly.

👉 What a thorough pre-acquisition building survey covers

• Current physical condition of the building fabric, structure and envelope
• Mechanical and electrical systems — a high-level assessment, with specialist M&E input appointed where a deeper review is required
• Compliance exposure — fire safety, asbestos, health and safety obligations
• Capital expenditure requirements in the near, medium and long term
• Any defects that affect value, liability or the ability to let and manage the asset

👉 Renegotiate, replan, or walk away informed

The purpose of a pre-acquisition survey for commercial is the make sure that when you proceed, you do so with a clear understanding of what you own, what it will cost to maintain and whether the price reflects reality. Defects are categorised by priority, so you know immediately what needs addressing, what can wait and what to factor into the numbers. Sometimes that means renegotiating. Sometimes it means adjusting the business plan. Occasionally, it means walking away from something that looked better than it was.

All of those are better outcomes than finding out after exchange.

TSP’s building consultancy team provides pre-acquisition surveys for commercial and mixed-use assets, giving investors and landlords the technical clarity to make confident, informed decisions.

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