Warning alert

This page contains materials produced by Hounslow and Richmond Community Healthcare NHS Trust (HRCH). On 1 July 2024, all adult and children’s community services in the London Borough of Hounslow provided by HRCH transferred to West London NHS Trust. Whilst we are in the process of re-producing these materials, patients and referrers can still refer to the information contained within them.

The Hounslow Adult Autism Assessment and Diagnostic Service provides specialist diagnostic assessments for adults living in Hounslow or who have a Hounslow GP who may benefit from the clarification of a possible diagnosis of autism spectrum condition (ASC).

Assessments will be carried out by clinical psychologists with training in specialist assessments for ASCs.

The service also provides training on autism awareness and working with autism. This training will be offered not only to health and care professionals, but also to other workers from a range of services in Hounslow who may work with adults with an autism spectrum condition.

Autism information for patients and carers

What is autism? Patient information

Information on use of audio-visual recordings


Referrals can be made by health and social care professionals, such as GPs, psychiatrists and social workers and sent to hrch.autismhounslow@nhs.net

Adult autism assessment referral form

To discuss a potential referral, please call 020 8614 5420.

The current waiting time for assessments is 2 years.

Missed appointment policy

If you cannot attend your appointment for any reason please let us know as soon as possible, giving at least 24 hours’ notice. We can then offer the appointment to someone else.

Appointments that are not cancelled at least 24 hours ahead of the scheduled appointment time are considered as 'did not attend' (DNA).

People who miss (DNA) two appointments will be discharged from the service and their referrer will be notified.  This is to be done to ensure equity and timely access to the service.

Online support for residents of North-West London

For parents / carers of ADHD / autistic young people (25 and under)

These online drop-in support groups, run by the Centre for ADHD and Autism Support, are an opportunity to talk to the family support team, who can offer guidance and support.

You can connect with other parents to share stories, offer advice, and build a supportive community.

You are welcome whether your child is formally diagnosed, on the pathway, or if you suspect your child might need an assessment and want to know the next steps.

Use the links below to register. The groups meet on Zoom.

Mondays, 10am - 12pm

Wednesdays, 7pm - 8.30pm

Contact enquiries@adhdandautism.org for more information.