Project Type: Traditional Mechanical & Public Health Services
Contractor: Bouygues UK
Client: Private Client
Value: £2.1 Million

Project Scope

This project involved the installation of services into a Grade II listed property on the inner circle of Regents Park. Requiring refurbishment to the highest level, it included family accommodation, staff accommodation, a swimming pool and commercial kitchen. In addition, the cooling plant needed to be renewed. This was remote to the main property at the lodge building and required the replacement of interconnecting buried pipework.

The project consisted of the complete replacement and upgrade of all mechanical and public health services; the works included:

Gas distribution to boilers, kitchen and fires in the reception rooms Heating of pool seating area by wet underfloor heating system Condensate drainage system
Heating by gas-fired boilers with associated gas supply, flues, and pumped LTHW distribution Air handling units and ducted supply and extract ventilation to occupied areas Soil and waste disposal systems to below ground drainage
Cooling by condenserless chiller with separate remote air-cooled condensers, located at the lodge building Local supply and extract ventilation units ducted to serve local areas Automatic controls, building management system and controls wiring
Refrigerant pipework between chiller and condensers Dedicated supply and extract ventilation to the kitchen BMS network cable across the site
Pre-insulated buried chilled water pipework between the lodge building and main house Anti-condensation system to conservatory roof glazing Thermal and acoustic insulation
Pumped chilled water distribution Domestic cold water storage and boosted supply to all demands Flushing and chemical cleaning of pipework
Comfort cooling and heating by four-pipe fan coil units Hot water generation and storage and supply to all demands Chlorination of water services
Heating of bathrooms by electric underfloor heating Separate Cat 5 hot and cold supplies to douche showers Permanent maintenance access ladders and platforms to services where required to safely maintain plant
Heating by radiators, trench heaters and towel rails Separate Cat 5 cold supply to the Refuse Store Acoustic noise and vibration treatment to the services

The Priory Approach

This project was uniquely complex because the majority of the main plant – air, water and electrical – was located in the basement area of the property. Distribution had to be carefully integrated into the walls and floors.

Because a standard approach of using 2D drawings with sectional views was not a practical solution, we carried out detailed surveys of the building including floor, ceiling and wall voids. We then fed this information back to our drawing / coordination department, using Revit and Navis works technology. This meant our engineers could view a number of different options for the services installation and then carry out the most suitable option.
Using 3D technology had another benefit; it allowed us to create an accurate planned preventative maintenance plan for future upkeep. We were able to plot the positions of vital valves and dampers and liaised with the design team to locate discreet access panels for ease of maintenance.

The planned works could easily create a lot of disruption to the building. To minimise this, we implemented bespoke routing and fixing methods. We took extra care of the listed finishes by carefully removing them during the works and then replacing them once the services had been installed.

“I have worked with Priory now on a number of projects over the last twelve years with each one being a success and the project in Regent’s Park Inner Circle was no different. A complex refurbishment of a listed private residence with existing finishes and listed elements can be very challenging but Priory made it look almost effortless and took everything in their stride. The high level of detail put into the drawings and coordination meetings for all the services within the existing historical structural elements allowed for possible problems to be identified early and resolutions put in place.

The onsite supervision and installation engineers were very diligent and respectful of the existing parts of the property and clearly took pride in their work, even when this was to be enclosed and never seen again. All of this led to a smooth commissioning period and an easy completion to the project. I would happily have Priory on any of the projects I am involved with.”

Craig Batterham, M&E Manager