Quick Facts

Annual Saving of £331,000

23.7% saving of HVAC energy

Analysed base line data and energy profiles through Optimised Analytics

BeMS improvements & optimisation in the Great Room to ensure constant comfort and efficiency

Modified control strategies to improve energy efficiency while improving guest comfort

Optimised Bureau provides continous monitoring to identify anomalies

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overall energy



The Grosvenor, A JW Marriott hotel, is a luxury 5-star hotel on Park Lane in central London The hotel accommodation includes over 600 rooms and suites delivering the highest levels of comfort expected in such an establishment. The Great Room is the largest banqueting space, in a 5-star hotel in Europe, hosting major events such as the BAFTAs. The property has evolved over the years as the needs have changed to meet the demands of the modern traveller and hotel operator. The property consists of three elements, north, south and central with building services split between north and south serving the entire facility. Over time the systems have become more challenging to maintain and operate to their optimum level.


Optimised Buildings were tasked with carrying out remedial works, upgrading existing system and reducing energy consumption in an effort to improve the guest experience. Due to its age and vast size this is not easily done, and solutions needed to be tailored to the individual challenges presented throughout the hotel.


In order to bring the site up to the latest specification to allow optimum control, the ageing Honeywell Excel BMS was upgraded to the latest Tridium N4 platform one area at a time.


The new software platform allows the maintenance team to deliver a programme of preventative planned maintenance. The improved network architecture has allowed for a central command and control room to be setp in the hotel that offers centralised monitoring and control, complemented by alarms and alerts that enable the hotel team to deliver reactive works as they are highlighted by the dashboards. This ensures systems are always functioning optimally and are maintained when needed.

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Analytics and Optimisation

An initial assessment of the site complemented by Optimised Analytics platform enabled us to make immediate adjustments for instant savings and optimisation of the assets. Strategies were agreed and implemented, this included:


  • analysing the base line data and energy profile

  • identifying energy usage throughout the day

  • aligning time schedules to match usage 

  • operating at suitable temperatures during the use periods without affecting the comfort conditions

  • ensuring correct use of override switches

  • preventing heating and cooling systems do not conflict with each other


Once these areas were addressed, the Optimised Bureau managed service could now remotely monitor the performance of the HVAC, BeMS and lighting systems to ensure continuous operational efficiency.


The hotel is also supported remotely though the Optimised Bureau that is providing continuous monitoring to identify anomalies and generate reports, alerts and ongoing energy management recommendations, with reactive support where needed.


The hotel and Optimised Building teams continue to work closely together monitoring the building systems, playing an active role in assisting the key stakeholders in making the right decisions to improve the operation of the property. The optimisation process is on going and to date the hotel has achieved an 23.7% reduction in HVAC energy consumption resulting in a pay back for the hotel of less than 11 months.

Grosvenor House Results

"Optimised Buildings have been instrumental in transforming the way we operate the hotel from an engineering perspective while significantly reducing our energy expenditure and improving guest comfort."

Gordon Ormond, Direct Engineering Grovenor House Hotel

If you are to create better returns from your property portfolio, then minimising operational costs is essential. Expert building and utilities management can help you do that, yet cost efficiencies need to be balanced against the need to provide a quality space and environment to tenants that ensures you meet your responsibilities, while creating high occupancy, as well as cost-efficiency. At Optimised Buildings we have pulled together best of breed technologies and services to bring many aspects of managing energy for real estate owners and operators under a single umbrella which we strongly believe will help you on your journey.

About Optimised Buildings

Discover our tailored approach to your energy needs 

Contact or call us on +44(0)333 370 2021



109-112 Lancaster House,

Amy Johnson Way



01253 209000


Kings Court,

87 High Street

Nailsea, Bristol

BS48 1AW

01275 859100


1 Ivanhoe Office Park,

Ivanhoe Park Way,

Ashby de la Zouch, Leicestershire LE65 2AB

0333 370 2021


The Oast

62 Bell Road


Kent ME10 4HE

0333 370 2023

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