Plans for the redevelopment of Hillingdon Hospital are progressing well and we are currently developing our Outline Business Case.   This page provides update on the key areas of work and is updated as new detail is available.    Progress on architectural plans and internal layouts is being shared through our online public exhibition and we look forward to receiving your feedback.


Strategic Outline Case

Out Strategic Outline Case has been approved by the DHSC and NHSEI Joint Investment Committee (JIC). 


During the initial stages of developing the Strategic Outline Case, potential options to address the issues with the estate were identified including:   

a)    A ‘Do Minimum’ option involving safety critical refurbishment and replacement of temporary accommodations 

b)    A part refurbishment and part rebuild of the current hospital 

c)    A full redevelopment of Hillingdon Hospital on the current site 

d)    A full redevelopment of Hillingdon Hospital on the Mount Vernon Hospital site, with the current Mount Vernon Hospital remaining as-is 

e)    A full redevelopment of Hillingdon Hospital on the Brunel University London site 

f)      No Hillingdon Hospital 

g)    A ‘Business as Usual’ option, where the Trust would fulfil existing planning commitments it has to replace temporary accommodations on the Hillingdon Hospital site, and would continue to reply on emergency capital funding to make reactive investments required to keep the hospital running.   

These options were evaluated to understand which ones would be the most feasible to take forward to a shortlist.   

Option d was not taken forward to the shortlist as there is not enough space on the Mount Vernon site to be able to fit all of the services we would need to provide there and given its location in the north side of the borough, a lot of our patients would be at a disadvantage.   


Option f was also not taken forward to the shortlist as this option would cause significant disruption to local healthcare and is not consistent with the strategy of the wider North West London health and care system.   


The shortlist of options which were evaluated were: 

a)    A ‘Do Minimum’ option involving safety critical refurbishment and replacement of temporary accommodation 

b)    A part refurbishment and part rebuild of the current hospital 

c)    A full redevelopment of Hillingdon Hospital on the current site 

d)    A full redevelopment of Hillingdon Hospital on the Brunel University London site   


A Business As Usual (no change) option was also considered as this is required as part of the business case process.   


An evaluation of these options was undertaken against qualitative and financial criteria to identify a preferred way forward. 


The qualitative assessment was undertaken by a panel including hospital clinicians and key local stakeholders such as Healthwatch Hillingdon, Hillingdon CCG, NW London STP, Hillingdon Local Authority, Brunel University London and Central and NW London Community Healthcare Trust. 


Feedback from our Council of Governors and patient panels fed into the evidence that we used to inform the qualitative assessment of options.   


Based on a comprehensive assessment of options, a full redevelopment of Hillingdon Hospital involving a new build on the current site was identified as the preferred way forward.

Schedule of accomodation

The schedule of accommodation (SoA) is a detailed list of facilities which are required to be in the final building.  This was developed through extensive engagement with clinical and operational teams and with external partners.


The final SoA has informed the 1:500 scale design layouts and reflected agreements on departmental accommodation reached at the Programme Board in November 2020 and subsequent adjustments agreed the January Working Group and Programme Board. 

First stage floor plans (1:500 scale drawings)

These scale drawings are the first drawings made on the internal design.  They bring together all the work done to date and detail which departments will go where and identify elements such as lift shafts, stair wells and ventilation.


Significant work has been undertaken through the Clinical and Operational Working Groups to develop the 1:500 scale design drawings, which outline the floor by floor layout of the new Hillingdon Hospital, identifying the key clinical adjacencies - which areas need to be next to each other. These are informed by the schedule of accommodation.


Since the start of the year, adjustments to the design layouts have been made in order to fully meet the clinical requirements and design need of the new hospital; ensure plans adhere to the latest national guidance for new hospital builds; and to improve the overall economy of the new hospital scheme.

There were a number of key drivers for this first stage of floor planning including:

  • Putting inpatients floors at the top of the building to maximise views and daylight
  • Placing the urgent and emergency care department on the ground floor as a fully integrated department
  • Wanting to ensure we can keep the current hospital open and fully functioning through out the build.

Work has now started on the more detailed 1:200 drawings.  

You can view the early floor plans below.  Towards the end of June, a public exhibition will be held to hear your feedback.  The exhibition will provide a first look at a range of aspects including what the building could look like, size, location, car parking plans, green space and sustainability.

Clinical developments

This redevelopment is not just about improving the physical building.   It is an exciting opportunity to improve the services we offer and the way we offer them, as well as ensuring the hospital is ready for the future. Working with staff and our Public Participation Forum, our clinical cabinet have identified a number of key improvements for the future hospital including:

Ward sizes and single room provision

Currently in Hillingdon there is a mix of ward sizes.  In the Tower the wards are mainly 6 bedded bays with between 4 and 6 side rooms. The hospital also has some 10 bedded wards and 28% of beds are single rooms.


In the new hospital, we anticipate wards will have 4 bedded bays with a minimum of 70% single rooms on each ward. This includes 1 isolation room per 8 bed cluster.  The mix supports patient choice – where medically appropriate.


Urgent and emergency care floor

There are many services which make up the urgent and emergency care floor  including surgical specialties, gynaecology, frailty unit, same day emergency care (SDEC), emergency assessment area, medical specialties and children, acute resuscitation, and acute mental health.

Services are being re-designed to ensure early assessment for patients to enable them to be directed to most appropriate place within the department and access to specialist treatment earlier


In the new building, there will be core diagnostics – such as CT scans, ultrasound and plain film x-rays – located within the ED.

This will mean faster access to diagnostics and reduce the need for patients to be sent across the hospital during their assessment.  It is also  beneficial for future pandemic planning as it provides a second diagnostic area within the hospital.


Elective care

Multi-functional treatment rooms will be provided.  These will be larger flexible spaces which enable them to be used for consultations and day case procedures for a range of specialities.


This will enable some patients to be seen and treated more quickly and prevent unnecessary admission



In addition to the labour ward, we are planning for a standalone midwife led unit.


The midwife led unit will have its own identity and space but be next door to the labour ward to allow seamless and safe transfer of women when this is needed



We will be moving to electronic patient records.  This prevents delays and cancellations caused by lack of relevant information.


It also ensures that the whole picture of your care is available to any clinician treating you in any location.


Critical care

There are plans for a larger unit which would be co-located with a medical high dependency unit (HDU).  This provides a flexible response to surges in demand and it allows safe and efficient step up and step down of our sickest patients with minimal distance to move across the hospital. 


Children and young people

The new build will see the development of distinct separate bespoke ward facilities for adolescents and younger children.


This means older children have a separate in-patient space to that of our younger patients, allowing an appropriate social space and the facilities to continue their education whilst in hospital.


There will also be specially designed cubicles to treat children and young people in the ED as well as dedicated out-patient and day care areas for children and young people