Building & Technical Due Diligence (TDD) Surveys
Fully comprehensive reports covering all aspects of a commercial property
What Is a Commercial Building Survey or TDD Survey?
A commercial building survey, sometimes referred to as technical due diligence survey, helps you understand the condition, risk and potential liabilities attached to a commercial property.
This type of survey is often arranged before purchasing a commercial building, acquiring a business with property assets, taking on a lease, reviewing an existing property portfolio or planning future maintenance.
Commercial property decisions often involve a combination of building condition, lease responsibilities, statutory information and future repair costs. Our role is to provide clear, practical advice so you can understand the issues that may affect the property before agreeing terms, completing a purchase or taking on new obligations.
What our Commercial Building Survey Covers
The scope of the survey will depend on the property, the reason for instruction, access arrangements and the information available. we may consider:
- Building condition and fabric: Visible internal and external elements, construction materials, defects, cracking, movement or distortion.
- Repair and maintenance considerations: Repair costs, likely maintenance requirements and issues that may need further investigation.
- Lease and liability matters: Relevant lease information and potential dilapidations liability where existing leases apply.
- Planning and statutory information: Planning history, statutory records and available documentation that may affect risk or obligations.
- Fire, asbestos and repair records: Available fire risk assessments, asbestos surveys, refurbishment records and information on recent repairs.
Why Arrange a Commercial Building Survey Before You Commit?
Without a Building Survey
- Hidden defects may only become clear after purchase or lease completion.
- Repair liabilities can be underestimated or missed entirely.
- Lease obligations may be agreed without a clear understanding of the building’s condition.
- Negotiations may be based on incomplete technical information.
With a Building Survey
- Visible defects and condition issues can be identified before key decisions are made.
- Potential repair costs and maintenance considerations are easier to understand.
- Lease, statutory and property documentation can be reviewed alongside the building condition.
- Clear findings can support negotiations, budgeting and future property planning.
Who This Is Suitable For
Our commercial building surveys and technical due diligence reports are suitable for a wide range of commercial property clients and transaction types. They are particularly useful for:
- Commercial property buyers who need to understand condition, defects and likely repair considerations before purchase.
- Tenants taking on a lease who want to understand the building and any potential repair liabilities before agreeing terms.
- Landlords and property owners who need a clearer view of their asset, maintenance requirements or potential risks.
- Investors and property funds reviewing commercial property before acquisition, disposal or portfolio decisions.
- Business owners acquiring premises who need practical advice before making a property commitment.
- Solicitors and professional advisers who require building condition information to support wider transaction advice.
Whether the property is an office, industrial unit, retail premises or wider commercial asset, a survey can provide useful technical context before important decisions are made.
Commercial Building Surveys Across London and The South West
Practical Surveying are based in Bristol and provide commercial building surveys and technical due diligence across London, Bristol and wider areas of the South and South West of England.
We regularly work in Bath, Cardiff, Cheltenham, Chippenham, Exeter, Gloucester, Somerset, Swindon, and the surrounding areas.
We support clients who need clear, practical advice before purchasing, leasing, managing or reviewing commercial property.
How Our Process Works
1. Tell us about the property
Send us the property details, the reason for the survey and any specific concerns you already have.
2. We agree the scope
We review your requirements and confirm the most suitable scope for the survey, so the advice is tailored to the property and the decision you need to make.
3. We inspect and review
We inspect the property and, where applicable, reviews any relevant documentation available, such as lease information, planning history, statutory records, fire risk assessments, asbestos surveys and records of refurbishment or repairs.
4. You receive clear advice
You receive clear written advice outlining the findings, risks and practical considerations. The report is designed to help you understand the condition of the property, identify issues that may require further investigation, and support your purchase, lease, negotiation or property management plans.
Once the report has been issued, we can discuss the findings and explain how they may affect your next steps.
Stuart Blick MRICS
Chartered Building Surveyor
Director
Leading Expertise You Can Trust
Founded by Stuart Blick MRICS, a Chartered Building Surveyor, Practical Surveying provides expert, reliable advice backed by years of industry experience.
Stuart’s commitment to high standards ensures clients receive personalised service and trusted guidance at every stage. With RICS regulation, you can rely on us for technical excellence and integrity in all your property needs.
Get in touch with Stuart today:
Why Choose Practical Surveying?
Clear, practical surveying advice for commercial and residential property decisions.
RICS-regulated
Professional surveying advice from a RICS-regulated practice, with clear standards and technical accountability.
Expert Advice
Technical surveying experience delivered with the responsiveness and direct communication of a smaller practice.
Clear guidance
Technical issues explained in straightforward terms, so you understand the risks, options and next steps.
Follow-up support
Follow-up advice is available after your report has been issued, helping you understand the findings before making decisions.
Commercial Building Survey FAQs
A commercial building survey and technical due diligence survey are closely related terms. Both are used to assess the condition, risk and potential liabilities attached to a commercial property.
“Technical due diligence” is often used in a wider transaction context, where the survey may also consider available documentation such as lease information, planning history, statutory records, fire risk assessments, asbestos surveys and repair records. The right scope will depend on the property, the transaction and the decision you need to make.
A commercial building survey reviews the wider condition, risks and potential repair considerations of a property, often before purchase, lease, acquisition or property review.
A schedule of condition records the property’s condition at a specific point in time. It is commonly used at the start of a lease to help clarify repairing obligations where it is properly agreed and referenced.
Yes. The findings from a commercial building survey may help inform negotiations by identifying visible defects, repair considerations, missing information or potential liabilities before terms are finalised.
The report can give buyers, tenants and advisers clearer technical information to consider when discussing price, lease terms, repairs, further investigations or future maintenance planning.
A commercial building survey is not always a legal requirement before signing a lease, but it can be valuable where repairing obligations may become the tenant’s responsibility.
It can help identify visible defects, maintenance concerns and potential liabilities before terms are agreed. A schedule of condition may also be recommended at lease commencement, depending on the property and lease position.
Useful documents may include lease information, planning history, statutory records, fire risk assessments, asbestos surveys, refurbishment details and records of recent repairs.
The documents needed will depend on the property, the transaction and the agreed scope of the instruction. Where available, these documents can help the survey findings sit within the wider property and transaction context.
No survey can identify every possible issue, particularly where defects are hidden, inaccessible or outside the agreed scope.
However, a well-scoped commercial building survey can provide a clearer understanding of the property’s visible condition, key risks, likely repair considerations and areas that may need further investigation before you make a decision.
After the report is issued, we can discuss the findings with you and explain how they may affect your next steps.
This may include talking through repair priorities, potential risks, further investigation, negotiation points or maintenance considerations, depending on the property and the reason for the survey.