2.1 Strategic
The A212 road above the subway is a busy route with daily flow estimated in April 2026 to be around 18,510 motor vehicles. It is also a significant bus route contributing to local public transport network. 8 No TfL bus routes use this route. Crystal Palace Bus Station is located on Crystal Palace Parade just to the south of the subway structure, opposite Farquhar Road.
The adjacent Crystal Palace Park is located at the junction of five south London boroughs (Bromley, Southwark, Lambeth, Croydon and Lewisham), and attracts around one million visitors annually, many from nearby communities.
While alternative routes are available, any prolonged closure would require traffic, bus services and other road users to divert via surrounding roads, increasing journey times and reducing network resilience. This would particularly affect residents who rely on public transport to access local services, employment and education opportunities. Increased congestion on diversion routes could also adversely affect journey reliability and accessibility for local communities and businesses.
The proposed refurbishment will preserve the long-term operation of this route and reduce the risk of future restrictions or closure arising from structural deterioration.
2.2 Economic
The main economic benefits come from the journey-time savings (estimated minimum 5min) particularly due to the volume of traffic, associated decongestion and maintenance whole life costs.
Operating and maintenance costs without the scheme are significantly higher due to need of continuous monitoring of the structure, and potential requirement for installing and maintaining contingency temporary works in the long term.
Once the subway has been put in good order, there are plenty of opportunities for having income generating public events which is a secondary benefit.
2.3 Commercial
The council proposes to deliver the scheme through a structured programme comprising design development, statutory approvals, procurement and construction. Initial activities will include detailed investigation to confirm the feasibility of a top-down waterproofing solution.
Detailed design of both waterproofing and masonry repair will be undertaken in consultation with the council's Conservation Officer, Historic England and other relevant stakeholders to ensure that the proposed works preserve the structure's historic significance while restoring its structural integrity.
The project will require Listed Building Consent prior to commencement of construction. Specialist design and construction services will be procured through the council's compliant procurement arrangements.
Works will be delivered under appropriate traffic and pedestrian management arrangements and are expected to include structural repairs, conservation and masonry restoration works, waterproofing and drainage improvements, and reinstatement of affected areas. The council's Client will lead overall project delivery with broad technical support from the council’s Consulting Engineering Team. This approach will ensure the scheme is delivered efficiently, achieves value for money and secures a sustainable long-term outcome for this important heritage asset.
2.4 Financial
The council has sought to manage the condition of the structure through its existing highway structures revenue budget and an award received from TfL via pan London prioritisation operated by the London Bridges Engineering Group. The council have undertaken routine inspections, special inspections, monitoring, minor repairs and essential maintenance works following a risk-based asset management approach. However, recent accelerated deterioration has meant the scale and cost of a comprehensive restoration scheme (estimated outturn £1.676m) is beyond that which can be accommodated within the council's existing structures programme. Accordingly, the scheme is being submitted for a funding award via DfT Structures Fund.
2.5 Management
The anticipated start date for construction of the scheme is April 2028 with the anticipated end date of construction August 2029.
In between there will be a structured delivery programme beginning with site investigations leading to design, approvals, procurement and implementation stages.
