
Certainty before you commit.
Complete pre-acquisition due diligence surveys giving buyers and occupiers full visibility of structural condition, compliance risk, and future liabilities before committing to a commercial transaction.

What our Due Diligence service delivers.
Our pre-acquisition due diligence surveys give buyers and occupiers a complete picture of structural condition, compliance risk, and future liabilities before committing to a commercial property transaction. We work across all asset classes throughout the UK.

Full Risk Picture Before Commitment
Structural, compliance, and liability risks are fully assessed before you exchange or commit to a transaction.
Protection Against Hidden Liabilities
Pre-existing defects, compliance gaps, and future capex requirements are identified and costed before you take ownership.
Strengthens Your Negotiating Position
Independent findings give you the evidence base to renegotiate price, seek price adjustments, or require remedial works as a condition of purchase.
Due Diligence in Practice
Pre-acquisition instructions. Drag to explore

Project Management External Refurbishment
location_onOxford Street, W1

Technical Due Diligence
location_onShoreditch, London

Technical Due Diligence
location_onSoho, W1

Building Survey
location_onRegent Street, W1

Building Survey
location_onFitzrovia, W1

Pre-Acquisition Building Survey
location_onLondon, W1

Planned Preventative Maintenance Advice
location_onShoreditch, London

Maintenance Advice
location_onPaddington, W2

Building Survey
location_onLondon Bridge, SE1

Maintenance Advice
location_onRegent Street, W1

Building Survey
location_onWigmore Street, W1

Planned Maintenance Schedule
location_onManchester Square, W1
RICS pre-acquisition due diligence surveys for commercial property purchases and lease acquisitions across London and the UK. This service is typically instructed by Institutional Investors, Private Equity, Developers, Commercial Tenants, Lenders & Funders, and Private Investors.
The trusted choice for commercial property clients.
RICS Regulated
Every surveyor is RICS-chartered and subject to mandatory CPD and professional standards.
Fully Insured
All instructions are covered by comprehensive professional indemnity insurance for your protection.
Independent Advice
No conflicts of interest. Our advice is always in your interests as our client.
24-Hour Response
We respond to every enquiry within 24 hours and deliver on the timescales we agree.
Ready to discuss your Due Diligence requirements?
Phone
020 3178 8099Address
17 Hanover Square, London W1S 1BN

RICS regulation means professional indemnity insurance, a formal complaints procedure, and surveys to RICS-mandated standards.
Related services

Building Surveys
RICS building surveys for commercial and residential property in London and across the UK, identifying defects before purchase or lease.
Learn morearrow_forward
Project Monitoring
Independent RICS project monitoring for funders, purchasers and lenders on developments across London and the UK.
Learn morearrow_forward
Schedules of Condition
RICS schedules of condition protecting landlords and tenants at lease commencement and end, across London and the UK.
Learn morearrow_forwardFrequently Asked Questions
Common questions from London property owners, investors and occupiers about our RICS Due Diligence service, answered by Botley Byrne's chartered surveyors.
What is technical due diligence in commercial property?
Technical due diligence (TDD) is a pre-acquisition assessment of a commercial property’s physical condition and compliance, carried out for a buyer, investor, or incoming tenant. It reviews structure, fabric, services, statutory compliance, environmental and title-related building issues, and future capital liabilities, so you understand exactly what you are acquiring before you commit.
What does a pre-acquisition survey involve?
It combines a physical inspection with a review of available documentation: plans, warranties, service records, and compliance certificates. We report on condition, defects, outstanding statutory items, and forecast repair and maintenance costs, flagging anything that should influence price, warranties, or your legal advisers’ enquiries.
How much does commercial due diligence cost in London and the UK?
Fees are set against the size, complexity, and value of the asset and the depth of due diligence required. It is a modest cost relative to the transaction and the liabilities it uncovers. We agree a fixed fee and scope at the outset. Contact us for a tailored quotation; we respond within 24 hours.
How long does due diligence take before completion?
For most single commercial assets we can inspect and report within one to two weeks, and we routinely work to tight exchange and completion deadlines. Portfolios or complex buildings take longer. Tell us your timetable and we will confirm a delivery date up front.
What is the difference between due diligence and a building survey?
A building survey focuses on the physical condition and defects of a property. Due diligence is broader and transaction-focused. It also weighs compliance, capital liabilities, documentation, and acquisition risk, framed to support your purchase decision, price negotiation, and solicitors’ enquiries.
Are your due diligence reports RICS-regulated?
Yes. Our pre-acquisition and technical due diligence reports are prepared by RICS-chartered surveyors within a RICS-regulated firm, backed by professional indemnity insurance, the standard commercial funders, investors, and lenders across the UK expect.