Technical due diligence for development sites
Contents |
[edit] Introduction
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.
[edit] Site information
- Site address (including post code).
- Site location map.
- Contact details for neighbours.
- Access assessment and arrangements.
- Site logistics assessment.
- Site security.
[edit] 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).
- Scheduled 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.
[edit] Surveys
- 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.
[edit] Site services
- Fire hydrants.
- Telecommunications.
- 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.
[edit] Planning
- 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.
[edit] Related articles on Designing Buildings Wiki
- Applying for new postal addresses.
- Building People.
- Caveat emptor.
- Condition.
- Condition Report.
- Condition survey.
- Contaminated land.
- Deleterious materials
- Demolition.
- Development appraisal.
- Due diligence.
- Easements.
- Ecological survey.
- Environmental Impact Assessment.
- Feasibility studies.
- Ground conditions.
- Gross development value.
- 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.
[edit] External references
- RICS Best Practice & Guidance Note for Technical Due Diligence of Commercial, Industrial & Residential Property in Continental Europe.
Featured articles and news
The Architectural Technology podcast: Where it's AT
Catch up for free, subscribe and share with your network.
The Association of Consultant Architects recap
A reintroduction and recap of ACA President; Patrick Inglis' Autumn update.
The Home Energy Model and its wrappers
From SAP to HEM, EPC for MEES and FHS assessment wrappers.
Future Homes Standard Essentials launched
Future Homes Hub launches new campaign to help sector prepare for the implementation of new building standards.
Building Safety recap February, 2026
Our regular run-down of key building safety related events of the month.
Planning reform: draft NPPF and industry responses.
Last chance to comment on proposed changes to the NPPF.
A Regency palace of colour and sensation. Book review.
Delayed, derailed and devalued
How the UK’s planning crisis is undermining British manufacturing.
How much does it cost to build a house?
A brief run down of key considerations from a London based practice.
The need for a National construction careers campaign
Highlighted by CIOB to cut unemployment, reduce skills gap and deliver on housing and infrastructure ambitions.
AI-Driven automation; reducing time, enhancing compliance
Sustainability; not just compliance but rethinking design, material selection, and the supply chains to support them.
Climate Resilience and Adaptation In the Built Environment
New CIOB Technical Information Sheet by Colin Booth, Professor of Smart and Sustainable Infrastructure.
Turning Enquiries into Profitable Construction Projects
Founder of Develop Coaching and author of Building Your Future; Greg Wilkes shares his insights.
IHBC Signpost: Poetry from concrete
Scotland’s fascinating historic concrete and brutalist architecture with the Engine Shed.
Demonstrating that apprenticeships work for business, people and Scotland’s economy.
Scottish parents prioritise construction and apprenticeships
CIOB data released for Scottish Apprenticeship Week shows construction as top potential career path.
From a Green to a White Paper and the proposal of a General Safety Requirement for construction products.
Creativity, conservation and craft at Barley Studio. Book review.
The challenge as PFI agreements come to an end
How construction deals with inherited assets built under long-term contracts.
Skills plan for engineering and building services
Comprehensive industry report highlights persistent skills challenges across the sector.
Choosing the right design team for a D&B Contract
An architect explains the nature and needs of working within this common procurement route.
Statement from the Interim Chief Construction Advisor
Thouria Istephan; Architect and inquiry panel member outlines ongoing work, priorities and next steps.



























