Technical Due Diligence

What we survey: Commercial property acquisitions across the UK – offices, hotels, industrial facilities, logistics assets, student accommodation, heritage buildings, and mixed-use properties from £200K to £500M+

What you get:

  • Structure & fabric condition assessment

  • Building services evaluation

  • Compliance gap analysis

  • Deferred maintenance quantification

  • Risk ratings and cost implications for each issue

  • Reports written for investment committees, not just technical specialists

When you need us:

  • Single asset acquisitions

  • Multi-property portfolio transactions

  • Refinancing due diligence

  • Vendor due diligence (sell-side)

  • Peer reviews of vendor due diligence

Portfolio coordination:
For large or international portfolios, we coordinate technical, environmental, and ESG due diligence across your consultant network – managing timelines, consolidating findings, and delivering one coherent report.

Standard turnaround: 10-14 days (single asset)
Expedited service available for time-critical completions


How our team’s technical due diligence work has helped our clients make better property decisions

Technical due diligence building surveys of traditional buildings and modern buildings. Image shows view over rooftops in Edinburgh.

The case studies* below show the types of projects we handle – from single-asset acquisitions to 128-property pan-European portfolios, £200K deals to £500M+ transactions.

Each example shows what the client needed, what was found, and how it affected their decision or negotiation.

*Where indicated, projects were delivered by the team member indicated prior to them joining Slipperfield. We present these as examples of the breadth of experience of the individuals named and the value they added to their clients.
Technical due diligence building surveys of modern buildings and traditional buildings. Image shows view of London city buildings.
  • Project type: Vendor due diligence (sell-side)

    Asset type: Three 5-star hotels, England

    Services: Technical and environmental DD

    Timeline: Standard delivery

    What the client needed:

    The seller needed vendor DD reports to provide to prospective buyers, covering structural condition, building services, environmental compliance, and ESG performance across three premium hotels.

    What was found:

    Building services (M&E) and key fabric elements approaching end of life across two properties

    Environmental compliance gaps that would need addressing

    How it helped:

    The vendor DD reports allowed the seller to proactively address issues pre-launch, then disclose issues and prepare credible cost estimates for remediation, avoiding late-stage negotiation surprises. The transparency helped maintain buyer confidence through completion.

    Client type: Hotel operator / seller

    This example is of Gillian Murray’s work pre-Slipperfield

  • Project type: Investment transaction (buy-side)

    Asset type: Pan-European logistics portfolio

    Services: Technical and environmental DD coordination and delivery

    Timeline: Expedited delivery - initial reports eight weeks turnaround

    What the client needed:

    A variety of pre-acquisition due diligence across a selection of 128 logistics assets in seven European countries (France, Spain, Netherlands, Belgium, Italy, Germany, Poland, Ireland, UK) within a tight transaction timeline.

    Approach:

    Existing vendor DD reports reviewed, then conducted detailed site surveys on a sample of assets, coordinated technical and environmental specialists across all countries, and consolidated findings into one comprehensive report with portfolio-level cost analysis.

    What was found:

    Identified properties with significant deferred maintenance

    Flagged environmental compliance concerns requiring immediate action

    Quantified capex requirements across the portfolio for investment modelling purposes

    How it helped:

    The client had clear visibility of risk and cost across the entire portfolio before completion, enabling informed investment decisions and accurate financial modelling. The consolidated report format allowed their investment committee to assess the acquisition efficiently.

    Client type: Real Estate Investment Trust

    This example is of Gillian Murray’s work pre-Slipperfield

  • Project type: Ongoing M&A support

    Asset type: Cold store facilities across Europe

    Services: Technical and environmental DD for multiple acquisitions (2022-2025)

    Locations: Italy, Netherlands, Spain, Belgium, UK

    What the client needed:

    Client was acquiring multiple cold store logistics businesses with real estate assets across Europe as part of an M&A growth strategy. Each acquisition needed technical and environmental due diligence, often including Phase 2 ground investigations.

    Role:

    Gillian Murray served as their consistent DD provider across all acquisitions, coordinating local specialists where needed, maintaining consistent reporting standards, and building institutional knowledge of their portfolio and risk appetite.

    How it helped:

    The client had a trusted advisor who understood their business, could move quickly on new opportunities, and provided consistent quality across multiple transactions in different countries. This relationship-based approach streamlined their M&A process.

    Client type: Private equity-backed logistics investment vehicle

    This example is of Gillian Murray’s work pre-Slipperfield

  • Project type: Acquisition with conversion intent

    Asset type: Heritage office building, London (proposed conversion to life sciences labs)
    Services: Technical, environmental, ESG DD, reinstatement cost assessment, heritage advice, feasibility study
    Timeline: Extended for feasibility assessment

    What the client needed:

    Investor acquiring a heritage asset in London currently operated as offices, with plans to convert it to life sciences laboratories. They needed to understand not just current condition, but whether the conversion was feasible within heritage constraints, what it would cost, and what regulatory approvals would be required.

    What was provided:

    • Detailed assessment of historic fabric and structural condition

    • Heritage impact assessment of proposed laboratory alterations

    • Environmental compliance and ESG performance evaluation

    • Engineering advice on services infrastructure for lab conversion (critical for life sciences requirements)

    • Reinstatement cost assessment for insurance purposes

    • Feasibility study addressing listed building consent process and requirements

    What was found:

    • Heritage fabric constraints on proposed alterations

    • Structural capacity for life sciences services infrastructure

    • Listed building consent pathway and expected conditions

    • Realistic cost estimates for conversion within heritage constraints

    • Environmental compliance requirements for laboratory use

    How it helped:

    The client understood whether their intended use was feasible, had realistic costs, and could make an informed acquisition decision knowing the heritage compliance pathway. They proceeded with the purchase confident the conversion was achievable.

    Client type: Institutional investor (life sciences sector)

    This example is of Gillian Murray’s work pre-Slipperfield

  • Project type: Investment transaction (buy-side)

    Asset type: Three aparthotels, London

    Services: Technical, environmental, ESG DD plus fire safety, facades assessment

    Timeline: Transaction-driven

    What the client needed:

    Investor acquiring three London aparthotels needed comprehensive due diligence covering not just standard building condition, but also fire safety concerns, façade condition, environmental compliance, and ESG performance.

    The approach:

    Coordination of five specialist disciplines – building surveying, fire engineering, façade specialists, environmental consultants, and ESG assessors – managing the project timeline and consolidating all findings into one detailed report.

    What was found:

    • Fire safety upgrade requirements

    • Façade fire and maintenance concerns requiring attention

    • Environmental compliance actions needed

    • ESG baseline assessment with improvement pathway

    How it helped:

    The client had a complete picture of all technical risks and compliance requirements in one consolidated report, enabling accurate capex modelling and avoiding the coordination burden of managing five separate consultants.

    Client type: Institutional investor

    This example is of Gillian Murray’s work pre-Slipperfield

  • Project type: Investment transaction (buy-side)

    Asset type: Grade I listed building operated as hotel

    Services: Technical, environmental, ESG DD, fire safety, facades, reinstatement cost assessment, heritage advice

    Timeline: Extended due diligence period

    What the client needed:

    Acquisition of a nationally significant listed building currently operated as a hotel. The client needed to understand structural condition, heritage conservation requirements, regulatory compliance, and the full scope of ongoing maintenance obligations for such an important historic asset.

    The approach:

    Coordination of specialist surveys including heritage impact assessment, structural engineering review, building services assessment, fire safety review (critical for guest safety in historic building), and facades condition survey. Provided reinstatement cost assessment for insurance purposes.

    What was found:

    • Heritage fabric requiring ongoing specialist conservation

    • Fire safety modifications needed while respecting listed building constraints

    • Facades maintenance programme requirements

    • Long-term capital expenditure planning for historic building maintenance

    • Specific obligations around listed building consent for any future alterations

    How it helped:

    The client understood the unique challenges and costs of operating a Grade I listed hotel, had realistic budgets for ongoing conservation, and could factor heritage compliance into their business plan.

    Client type: Hotel operator / investor

    This example is of Gillian Murray’s work pre-Slipperfield

  • Project type: Vendor due diligence (sell-side)
    Asset type: 33 hotel and leisure complexes, UK-wide
    Services: Multi-discipline technical DD
    Timeline: Delivered within transaction deadline

    What the client needed:

    Hotel portfolio owner returning to Gillian for vendor DD after her team had surveyed the same portfolio for them during their acquisition two years earlier. They needed updated condition assessments across all 33 properties to provide to prospective buyers.

    Why they came back:

    The previous buy-side DD had been thorough, accurate, and helped them make an informed acquisition. When it came time to sell, they wanted the same quality and consistency for their vendor reports.

    The approach:

    All 33 properties surveyed and specialist input coordinated where needed. Gillian acted as report auditor to ensure consistency across the entire portfolio.

    How it helped:

    The vendor DD reports gave prospective buyers confidence in the portfolio condition, and the seller's familiarity with the work from the original acquisition meant they trusted the assessments. The transaction completed successfully.

    Client type: Hotel investment fund

    This example is of Gillian Murray’s work pre-Slipperfield

  • Project type: Refinance transaction

    Asset type: Theme parks portfolio, UK and Germany

    Services: Technical DD, specialist leisure engineering, health & safety consultancy

    Timeline: Lender-driven deadline

    What the client needed:

    Banking syndicate refinancing a portfolio of theme parks needed technical due diligence that went beyond standard building surveys to include specialist leisure equipment engineering assessments and health & safety compliance reviews.

    The approach:

    Coordination of leisure parks specialist engineering teams and health & safety consultants alongside the building surveying work, providing summative technical DD reports that covered buildings, infrastructure, and specialized leisure equipment.

    What was found:

    • Building and infrastructure condition across the portfolio

    • Leisure equipment maintenance requirements and compliance

    • Health & safety regulatory compliance status

    • Capital expenditure requirements for ongoing operations

    How it helped:

    The lending syndicate had comprehensive technical risk assessment covering both real estate and specialized theme park equipment, enabling confident refinancing decisions.

    Client type: Banking syndicate (lender)

    This example is of Gillian Murray’s work pre-Slipperfield

  • Project type: Refinance transaction

    Asset type: 21 hotels, UK and Ireland

    Services: Technical, environmental, and ESG DD including energy surveys

    Timeline: Coordinated across two countries

    What the client needed:

    Refinancing client needed updated technical, environmental, and ESG assessments across their 21-property hotel portfolio spanning UK and Ireland, including energy performance surveys to inform ESG strategy.

    The approach:

    Surveyed all 21 properties, providing detailed TEDD, ESG, and energy surveys for each asset, then authored a separate portfolio overview report summarizing key findings and associated cost analyses to give lenders and the client a consolidated view.

    What was delivered:

    • 21 individual detailed property reports

    • Portfolio overview report with consolidated risk assessment

    • Cost analyses across the portfolio

    • ESG baseline and improvement recommendations

    How it helped:

    The lender had clear visibility of technical risk and ESG performance across the portfolio. The client had a roadmap for ESG improvements and understood their capital expenditure requirements.

    Client type: Hotel portfolio owner / operator

    This example is of Gillian Murray’s work pre-Slipperfield

  • Project type: Freehold acquisition
    Asset type: Seven purpose-built student accommodation buildings, UK
    Services: Technical and environmental DD including fire engineering
    Timeline: Six weeks from surveys to final reports

    What the client needed:

    Specialist student accommodation investor acquiring seven PBSA assets around the UK. They needed technical DD completed within six weeks to meet their transaction deadline, including review of existing vendor reports, their own surveys, and specialist fire engineering advice (critical for student safety).

    The approach:

    Reviewed vendor DD reports for initial risk assessment, conducted TDD surveys across all seven properties, coordinated fire engineering specialists for detailed fire safety assessments, and delivered all reports within the six-week window.

    What was found:

    • Validation of vendor report findings with additional observations

    • Fire safety compliance status and any required upgrades

    • Building condition and maintenance requirements

    • Capital expenditure planning for the portfolio

    How it helped:

    The client met their completion deadline with confidence in the portfolio's condition and clear understanding of any fire safety works needed – critical for student accommodation operations and insurance.

    Client type: Specialist student accommodation investor

    This example is of Gillian Murray’s work pre-Slipperfield

  • Project type: Investment finance (buy-side DD for joint venture)
    Asset type: 33 hotel and leisure complexes, UK
    Services: Multi-discipline due diligence
    Timeline: Eight weeks to meet financing deadline

    What the client needed:

    Investment joint venture refinancing 33 hotel and leisure complexes around the UK. The client needed comprehensive technical DD across the entire portfolio within an eight-week window to meet their financing deadline.

    The approach:

    Delivery of multi-discipline due diligence across all 33 properties, coordinating specialist input where needed, and ensuring consistent reporting standards across the portfolio so the investment committee could compare properties and assess overall risk.

    Scale of work:

    • 33 properties surveyed across UK

    • Multiple survey teams coordinated

    • Consistent reporting format across all assets

    • Eight-week delivery from survey start to final reports

    How it helped:

    The investment joint venture had complete technical risk assessment across the portfolio within their deadline, enabling the financing to proceed. The consistent reporting format allowed easy comparison across properties and portfolio-level risk assessment was a useful executive summary for the transaction team.

    Client type: Investment joint venture / lender

    This example is of Gillian Murray’s work pre-Slipperfield