Willmott Dixon WELL Platinum Herts HQ: design and services lessons for engineers
Reviewed by Joe Ashwell

First reported on The Construction Index
30 Second Briefing
Willmott Dixon has completed a £56m, 9,000 m² Hertfordshire Constabulary headquarters in Welwyn Garden City, the first UK police building to achieve Platinum under the WELL Building Standard. The SCAPE-delivered facility consolidates the major crime unit, victim services, dog unit, senior leadership and operational support previously dispersed across the 1960s Stanborough site. Key technical features include an in-situ reinforced concrete primary frame for thermal mass, air-source heat pumps with high-efficiency HVAC, future-proofed PV infrastructure and site-wide SuDS for water management.
Technical Brief
- Co-location of major crime, victim services, dog unit and leadership reduces inter-site travel and associated operational downtime.
- Replacement of a 1960s facility suggests upgrades in structural robustness, fire strategy and modern security zoning.
- Consolidated operational support spaces enable shared plant rooms and rationalised MEP distribution, reducing duplicated services.
Our Take
The use of the SCAPE Construction framework here mirrors Willmott Dixon’s reliance on major public frameworks such as the Southern Construction Framework at Wembley, which typically shortens procurement cycles and can lock in repeat work with regional authorities and blue-light services.
Within our 912 Infrastructure stories, relatively few police or blue-light facilities appear compared with schools and transport hubs, so a WELL-focused headquarters in Hertfordshire signals that health and sustainability standards seen in education projects are now starting to migrate into policing estates as well.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.


