Scope
Downwell was engaged to deliver the full demolition package across the former HMP Holloway Estate, comprising multiple two- to five-storey buildings previously used for accommodation, offices, welfare areas and a visitors’ centre. The scope of works included:
- Completion of a fully intrusive Refurbishment and Demolition (R&D) survey
- Internal strip-out and asbestos removal prior to structural works
- Full demolition of existing buildings and removal of ground slabs and foundations
- On-site crushing and processing of arisings for reuse in future construction phases
- Careful sequencing of works within a large, sensitive urban environment
- Implementation of strict environmental and safety controls throughout delivery
Challenges and Expertise
The discovery of bat roosts within parts of the site required an immediate pause in works and the introduction of a comprehensive ecological protection plan. Bat boxes were installed in nearby trees as safe alternative habitats, with affected structures regularly monitored to ensure compliance. Downwell’s resident liaison team maintained proactive engagement with local neighbours and stakeholders to minimise disruption and uphold strong community relations..
Outcome
The project was delivered safely, sensitively and in full compliance with ecological and community requirements, leaving the site ready for its next phase of redevelopment.

