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The Investor’s Checklist

Your 20-point due diligence framework for UK property acquisitions. Download the PDF and take it to your next viewing.

20-Point Due Diligence Framework

The Investor’s Checklist

20-Point Due Diligence

A comprehensive 20-point due diligence framework for UK property acquisitions. Never exchange contracts without verifying these critical elements.

Phase 1: Financial Viability

01.

True Yield Calculation

Calculate both gross and net yield. Factor in realistic void periods (typically 3-4 weeks per year), management fees, maintenance sinking funds, and landlord insurance.

02.

Mortgage Stress-Testing

Can the investment survive a 2-3% interest rate hike? Ensure the rental income provides at least a 125% (or 145% for higher-rate taxpayers) interest cover ratio (ICR) at a stressed rate.

03.

Hidden Leasehold Costs

If acquiring a flat, scrutinise the ground rent and service charges. Are there upcoming Section 20 major works notices? Is the ground rent subject to aggressive review clauses?

04.

Stamp Duty Land Tax (SDLT)

Accurately model the 5% SDLT surcharge for second homes and buy-to-lets. If purchasing through a Limited Company, the surcharge applies immediately.

05.

Capital Growth Potential

Review historical Land Registry data for the specific postcode. Look for leading indicators of growth: new transport links, regeneration projects, or major employers moving to the area.

Phase 2: Legal & Compliance

06.

Tenure & Lease Length

Confirm if the property is Freehold, Leasehold, or Share of Freehold. For leaseholds, ensure there are at least 80 years remaining to avoid marriage value kicking in during extension.

07.

EPC Rating & Future-Proofing

The property must be an EPC rating of E or above to be legally let. Assess the cost of upgrading it to a C rating to future-proof against upcoming legislation.

08.

Local Authority Licensing

Check the local council's website for Selective, Additional, or Mandatory HMO licensing requirements. Operating without a required licence is a criminal offence.

09.

Planning & Building Regulations

Verify that any extensions, loft conversions, or structural alterations have the correct planning permissions and building control sign-off. Indemnity policies don't fix poor building work.

10.

Restrictive Covenants

Instruct your solicitor to check the title deeds for restrictive covenants. Some estates or leases explicitly forbid subletting, short-term lets (like Airbnb), or running a business.

Phase 3: Physical Condition

11.

Structural Integrity

Always commission a RICS Level 2 (Homebuyer) or Level 3 (Building) survey. Look specifically for subsidence, rising damp, penetrating damp, and roof spread.

12.

Boiler & Heating System

Check the age and service history of the boiler. A replacement costs £2,000+. Ensure the system can pass an annual Gas Safety Certificate without major remedial work.

13.

Electrical Safety (EICR)

Landlords must provide a satisfactory Electrical Installation Condition Report (EICR). Check the age of the consumer unit (fuse box) and whether the wiring is modern PVC.

14.

Environmental Risks

Check the Environment Agency website for flood risk. Look out for Japanese Knotweed in the garden or neighbouring plots, which can make the property unmortgageable.

15.

Roof, Glazing & Exterior

Inspect the condition of flat roofs (which have a limited lifespan), the pointing on brickwork, and whether the double glazing has blown (condensation between panes).

Phase 4: Location & Market

16.

Transport Links

Proximity to reliable transport is the number one driver of tenant demand. Walk the route to the nearest train station, tube, or major bus stop yourself.

17.

Local Amenities & Schools

Check the distance to supermarkets, gyms, and green spaces. If targeting families, verify the Ofsted ratings of local catchment schools.

18.

Rental Demand Verification

Don't rely solely on Rightmove. Call three local letting agents pretending to be a landlord. Ask about average void periods and what type of tenant is currently looking in that specific street.

19.

Crime Rates & Anti-Social Behaviour

Use the police.uk website to check reported crime in the immediate postcode. High rates of anti-social behaviour will lead to high tenant turnover.

20.

Neighbourhood Dynamics

Visit the street at different times (e.g., Tuesday afternoon vs. Friday night). Note the ratio of owner-occupiers to renters, the condition of neighbouring front gardens, and parking availability.