Technical due diligence for development sites
By 'technical due diligence' we are referring to the process of investigating a site to assess its suitability for a particular project and the risks involved before proceeding with that project. A due diligence checklist is presented below, providing a list of some of the aspects of a site and its context that it may be necessary to investigate.
- Site address (including post code).
- Site location map.
- Contact details for neighbours.
- Access assessment and arrangements.
- Site logistics assessment.
- Site security.
 Legal searches
- Deeds and title Information.
- Ownership (including boundaries and possible disputes).
- Central and local government planned works within the vicinity of the site.
- Possible compulsory purchase orders.
- Part wall appraisals and surveys.
- Rights of light appraisals and surveys.
- Way leave agreements (telecommunications, electrical networks etc ).
- Existing licences.
- Easements (rights of way, right to light, the right for underground services to pass beneath the land of a neighbouring property, right of support, the right to draw water etc).
- Restricted covenants.
- Tree Preservation Orders or other tree rights.
- Listed buildings.
- Conservation areas, or other designated areas (such as national parks, areas of outstanding natural beauty and the Norfolk and Suffolk Broads).
- Schedules monuments.
- Building regulations approvals.
- Statutory waterways and any associated restrictions.
- Railways and any associated restrictions.
- On site adverts.
- Civil Aviation Authority restrictions.
- Car parking licences and agreements.
- Existing occupants and illegal occupation.
- Topographical survey.
- Existing building survey (including valuation, measured surveys, structural surveys, structural investigations, condition surveys and demolition surveys).
- Historic use report.
- Site investigations.
- Contamination survey.
- Boundary surveys.
- Structural survey (including retained structures, underground structures and obstructions).
- Unexploded bomb survey.
- Railway and tunnel search.
- Air quality.
- Archaeological survey.
- Asbestos and other deleterious materials surveys and registers.
- Local area transport infrastructure (adequacy and future use).
- Ecology survey.
- Local climate.
- Photographic survey.
- Fire hydrants.
- Wireless networks and satellite reception.
- Electrical infrastructure and capacity.
- Gas network infrastructure and capacity.
- Foul sewers and drains infrastructure and capacity.
- Existing water supply infrastructure and capacity.
- Planning applications and approvals for the site and within the vicinity of the site, including conditions and obligations (agreed or in draft).
- Social and economic desktop study.
- Access statement.
- Statement of community involvement.
- Cumulative impact report.
- Visual impact assessment.
- Sustainability statement.
- Heritage report.
- Traffic assessment.
- Flood risk.
- Air quality.
- Acoustic environment and noise.
 Related articles on Designing Buildings Wiki
- Applying for new postal addresses.
- Caveat emptor.
- Condition survey.
- Contaminated land.
- Deleterious materials
- Development appraisal.
- Due diligence.
- Ecological survey.
- Environmental Impact Assessment.
- Feasibility studies.
- Ground conditions.
- Japanese knotweed.
- Lawful development certificate.
- Planning permission
- Pre construction information.
- Rights of way.
- Site appraisals.
- Site information.
- Site selection and acquisition.
- Site surveys.
- Soil survey.
- Tree preservation orders.
- Tree rights.
- Vendor survey.
 External references
- RICS Best Practice & Guidance Note for Technical Due Diligence of Commercial, Industrial & Residential Property in Continental Europe.
Featured articles and news
This article explains the Buildings Regulations completion certificate, what it is, and when its needed.
Graphene has many potential applications, but when will it start being used in civil engineering?
Increasing productivity – now more than ever as we lead up to Brexit – should be the sector’s number one priority in 2018.
Carillion's collapse causes Construction Leadership Council to delay the construction sector deal report.
Urban Heritage, Development and Sustainability: international frameworks, national and local guidance.
What will the General Data Protection Regulations (GDPR) mean for you when they come into force in May?
Business Secretary chairs a new taskforce to monitor and advise on mitigating the impacts of Carillion’s liquidation.
Sir John Armitt is appointed the new chair of the National Infrastructure Commission.
High quality and high density homes - is it what we need or is it storing up trouble?
Government announces its intention to strengthen planning rules to protect music venues and neighbours.
National Audit Office reports that there is little evidence that PFI offers better value than other forms of contracting.
What is liquidation and how does it apply to contractors in the construction industry?