Converting a building for healthcare uses

OpEd kindly provided by Nigel Booen, Director of Design, Boyer (part of Leaders Romans Group)

In November, the controversial Darzi Report in its recommendations for the future of the NHS, stated that, “Too great a share [of NHS funding] is being spent in hospitals, too little in the community,” and emphasised the importance of locating healthcare facilities on the high street – closer to where people live, work, and shop.

The benefits of locating healthcare services in town centres and high streets has been widely recognised for many years. The reasoning was conveyed very comprehensively in a 2020 report by the NHS Confederation, Health on the High Street which recognises, among other benefits, the role that public healthcare performs in broadening the range of services within communities, supporting and participating in the design of healthy communities and utilising vacant properties. Specifically, the report states that, “Health and wellbeing are central to community life and a new vision of a civic, more community-centred high street must have health services at its heart and promote healthy living”.

The same year the then government added greater flexibility to the planning system, introducing a new planning use class, Class E, which encompasses commercial, business and service (including healthcare) sectors. As such, Class E enables the repurposing of buildings on high streets and town centres from retail or office use to use as a GP surgery or community health hub without the need for a full planning application.

The timing of the Covid 19 pandemic acted as a timely opportunity to re-think NHS services, specifically in relation to community development, and to support ailing high streets.

Adapting commercial spaces as healthcare facilities offers several practical benefits: typically these are large units with high ceilings which enable the installation of the necessary mechanical and electrical systems, such as ventilation, air conditioning, and air quality controls. Reuse over rebuild has numerous sustainability and economic benefits.

The potential for change opens new and timely opportunities, linking to a nation-wide rethink of the UK’s high streets and the role that health services and communities can play.

It’s a win-win situation: from a healthcare point of view, the move to high street premises can help address health inequalities while offering much-needed additional capacity for health service delivery. From a regeneration perspective, encouraging a more diverse group of people to visit and use high streets can be of considerable benefit to existing businesses. Furthermore, placing healthcare services in central areas can reduce carbon emissions by reducing the need to travel to distant hospitals.

When converting a building, there are a number of considerations that must be taken into account from an architectural perspective:

• Ensure there is adequate access to natural light, as commercial buildings often have deep floorplans with windows only on the narrow elevations. The existing availability of daylight can be improved by installation of rooflights or new windows, however there is a limit to how much of this can be done under permitted development rights, as any external changes to an existing building are subject to an additional planning application. It is therefore more cost effective to select buildings that have sufficiently sized and orientated windows on most or all elevations.
• The quality of the existing building fabric, in terms of thermal and sound performance, must be considered. Thermal insulation, either by retrofit or upgrading the existing fabric, is almost always required to meet current building regulations. Single pane windows and single skin buildings will usually require more work to meet current performance thresholds, although some older buildings make good conversions if they are of good build quality. Upgrading an existing building’s thermal performance can be demanding as older buildings often have crooked walls and are prone to air leakage, therefore not best suited for high thermal performance.
• Sound insulation is also difficult to improve without significant alterations to an existing building. Replacing windows, for instance, will be subject to a further planning application and will likely be required to meet current building regulations and provide a comfortable space for healthcare uses. An alternative can be secondary glazing; however, the cost and user convenience must be considered.
• Windows of commercial buildings are likely to be the sole means of ventilation in a conversion. If it is impractical to keep windows open, for instance if the building is public facing with no or little separation from public realm, there may be little or no ventilation. If this is the case, it may be best to submit an additional planning application to enable increased ventilation, either passively through more windows or through additional mechanical systems.
• Landscaping can provide external amenity space, which is not easily found with existing commercial buildings: an opportunity to utilise a commercial building with external spaces would almost certainly be of benefit, albeit the maintenance aspect must be considered in advance.
• Privacy is a key consideration for buildings of healthcare use. Patients and healthcare professionals will not want to feel exposed to either external onlookers or other building users. Commercial buildings often do not make provision for providing levels of privacy required for healthcare use. This should therefore be considered as significant external amendments will likely be required.

Of course where existing buildings fall short of potential for conversion under change of use, this can be compensated for by the submission of further planning applications. While change of use is an easier route for a simple conversion, we should not dismiss planning applications on the basis of being needlessly complicated, as a more comprehensive conversion can create a more valuable end product and help achieve greater opportunities for natural light, ventilation, amenity space and security. If there are too many constraints, such as contamination or a poor existing structure, then it may well be better to demolish and rebuild.

Whether through new build development, conversion or simply the short-term use of a retail unit, the opportunities for healthcare services to relocate to high street settings are considerable and well worth further consideration, both on a national and a local level.