Institutional Advisory
UK Portfolio Acquisition Due Diligence
Buyer acquiring a portfolio or corporate holding UK property.
Mandates from £50m
Key facts
- A portfolio is not the sum of its assets — it is the sum of its correlations.
- The weakest assets in a portfolio are usually the ones bundled deliberately.
- Compliance capex across a portfolio compounds: one EPC pathway per asset becomes a programme.
- Debt maturity clustering is a portfolio-level risk that asset-level diligence never surfaces.
- Share purchase versus asset purchase changes tax, liability inheritance and timetable materially.
- Overseas entities acquiring UK property must be on the Register of Overseas Entities to be registered as proprietor.
- Institutional mandates from £50m. Private-investor engagements are handled on our advisory track.
Portfolio deals are sold on the blended yield. That blend is where the problems hide: the two assets carrying the concentration risk, the three with a compliance liability, and the refinancing window that lands on all of them at once. Portfolio diligence is a different exercise from doing asset diligence several times.
What does portfolio-level due diligence add over asset-level review?
Correlation. Asset diligence tells you each building is acceptable. Portfolio diligence tells you what happens when the same employer, the same city economy, the same lease expiry year or the same refinancing window affects several of them simultaneously. That is the exposure that turns a soft market into a forced sale.
How do you verify the income across a portfolio?
From the leases, not the schedule. Rent schedules are prepared by the vendor and reconcile to the marketing, not necessarily to the documents. We sample and reconcile: passing rent, review dates, breaks, incentives still running, service charge caps and irrecoverables, then rebuild the net income line.
Should you buy the assets or the company?
It changes tax, liability and timetable. A share purchase can carry a different SDLT position but inherits the company's history, including tax, employment, environmental and litigation exposure. An asset purchase leaves that behind but is usually slower and taxed differently. Both should be modelled before the structure is agreed.
What is the most commonly missed portfolio risk?
Debt maturity clustering. Several facilities maturing within the same short window force a simultaneous refinancing into whatever market exists then. Spread maturities, or price the risk of refinancing all of it at once at a materially higher cost.
Portfolio diligence workstreams
| Workstream | Question | Evidence |
|---|---|---|
| Income | Is the rent roll real? | Leases sampled and reconciled to the schedule |
| Concentration | What correlates? | Tenant, sector, geography and expiry mapping |
| Compliance | What must be spent? | EPC/MEES pathway per asset, aggregated to a programme |
| Debt | When does it mature? | Facility maturity profile across the portfolio |
| Structure | Shares or assets? | Tax and inherited liability modelled both ways |
How the review works
- 1
Data room triage
What has been provided, what is missing, and what the gaps imply.
- 2
Income reconciliation
Sampled leases rebuilt against the vendor rent schedule.
- 3
Correlation mapping
Tenant, sector, geography, expiry and debt maturity overlaid.
- 4
Capex programme
Asset-level compliance requirements aggregated with timing and cost.
- 5
Structure modelling
Share versus asset purchase, tested with your tax adviser.
- 6
Written position
Price, structure and conditions we would require before exchange.
Request a mandate review
Independent, fee-based and separate from any transaction. Tell us the decision and we will tell you what we would need to review it properly.
Frequently asked questions
Sources
- Register of Overseas Entities — GOV.UK
- Minimum Energy Efficiency Standard (non-domestic) — GOV.UK
- SDLT rates — GOV.UK
- HM Land Registry Price Paid Data
Checked 13 August 2026. Tax and regulatory points on this page reflect published HMRC and GOV.UK guidance at the date shown. They are general information, not tax advice — confirm your position with a qualified UK tax adviser before committing capital.
Related reading
- Commercial Property Investment in the UKInstitutional or overseas capital assessing a UK commercial acquisition before committing.
- Independent Commercial Real Estate AdvisoryBuyer looking for advice that is not attached to a transaction fee.
- Property Investment ConsultancyCapital allocator looking for consultancy rather than transaction services.
- Student Accommodation Investment in the UKInstitutional buyer assessing UK PBSA before commitment.