ADHD Assessment London:
A Comprehensive Guide

Ruth Kennedy - 7 March 2024

[Reading Time: 4 Minutes]

tower bridge London at night

Are you or someone you know grappling with the challenges of ADHD in London? You're not alone. In a bustling city like London, managing ADHD can feel like navigating a maze without a map. But fret not, this guide is your compass.

Consider this: ADHD affects not just individuals but entire communities, impacting work, relationships, and overall well-being. Yet, despite its prevalence, accessing accurate assessments remains a hurdle for many.

In this comprehensive piece, we'll delve into the intricacies of adult ADHD assessments in London. Shedding light on NHS wait times and private diagnosis costs as well as listing the options available to you for where to go.

But that's not all. We understand the urgency of dealing with ADHD symptoms, so we'll also provide practical tips for managing the worst of them.

Plus, in the end, we'll give you our recommendation for how to cope with those pesky focus and attention issues  while waiting for your own assessment.


  • How Do I Get Tested for ADHD in London?
  • Where Can I Get an Adult ADHD Assessment in London?
  • How Long is the NHS Waiting List for ADHD Diagnosis in London?
  • NHS ADHD Assessments London
  • How Much Do Private ADHD Assessments Cost in London?
  • Private ADHD Assessments London
  • Tips for Managing ADHD Symptoms While You Wait for Your Assessment
  • How to Cope With Focus and Attention Issues While You Wait for Your Assessment
  • Conclusion

How Do I Get Tested for ADHD in London?

If you suspect that you or a loved one may have ADHD, getting tested is the first step towards receiving an accurate diagnosis and finding the proper treatment. In London, there are several options for getting tested for ADHD; you just have to find the one that suits you best.

The first step in getting ADHD testing is to visit your GP. Your GP can conduct a preliminary assessment and rule out other possible causes of your symptoms. If your GP suspects you may have ADHD, they will refer you to a specialist for a more comprehensive assessment.

These specialists are trained to diagnose and treat ADHD and will conduct a comprehensive assessment, which may include interviews, questionnaires, and observation.

It's important to note that getting an accurate diagnosis of ADHD is a process that may involve multiple assessments and evaluations from different professionals. Remember that ADHD assessment should be done by professionals specialising in ADHD diagnosis, as the process is more complex than a standard psychological assessment. The diagnosis can not be made by your GP only.

If you think you might have ADHD, take our self-assessment today to see whether or not you present key symptoms.

Where Can I Get an Adult ADHD Assessment in London?

There are really two options available when it comes to getting an ADHD assessment. One, you could get a referral from your GP to receive a free diagnostic service from the National Health Service.

This process can take up to several years and often involves additional tests, such as cognitive assessments, before reaching an official diagnosis. The upside of this type of assessment is that it's free under the NHS; however, these services are often under-subscribed, and it can be difficult to get an appointment due to long waiting lists in some areas.

Or two, you can find private ADHD assessments available from private clinics or ADHD specialists. Private assessment for ADHD often requires an evaluation from a specialist. This may be done by a healthcare professional such as a clinical psychologist or psychiatrist. Private ADHD assessments typically follow the same steps as NHS ADHD assessments and involve an initial consultation followed by further testing if necessary.

female adhd specialist talking to female patient

The major difference between getting an assessment done by the NHS or privately is that you would need to pay for a private ADHD diagnosis.

It's important to note that since 2018 if you are registered with a GP surgery in England, and you are referred by a GP to an appropriately qualified healthcare professional, you have the right to choose the provider (qualified provider) to whom you are referred, as long as that provider is providing that service in other parts of England.

Learn more about my recommended solution for coping with focus and attention issues while you wait to be assessed for ADHD, or take advantage and save time today by using the quick buy function.

How Long is the NHS Waiting List for ADHD Diagnosis in London?

The waiting time for an initial ADHD assessment through the National Health Service (NHS) in London can vary depending on several factors, including the availability of specialists or resources and the pressure on the NHS. This means that the waiting time may be longer during certain times of the year or in areas with high demand for services.

According to the NHS, the waiting time for an ADHD assessment in most boroughs of London is a minimum of 6 months. However, the reality is that it is more likely you would be waiting at least 2 years to be seen by a specialist.

In fact, many of the NHS clinics are currently so backed up that they have had to suspend even receiving referrals for up to 6 months, pushing wait times even further back.

Watch: First patient diagnosed at ADHD clinic created to beat health service waiting lists – BBC News

Another factor waiting times can depend on is the urgency of your case. If your symptoms are severe or impacting your daily life, your GP or referral professional may prioritise your case and help you get an appointment sooner.

It's recommended that you inquire about the waiting time for an ADHD assessment with your GP or the NHS clinic that you are referred to. They will be able to provide you with more accurate information about the waiting time for an assessment in your area.

NHS ADHD Assessments London

Looking for where to go in London for your initial adult ADHD assessment? Below we have collected information on where you can get assessed for ADHD across London through the NHS.

Central & NW London NHS FT - CNWL ADHD Service

  • Services Provided: The CNWL Attention Deficit Hyperactivity Disorder (ADHD) clinic offers diagnosis and medication stabilisation for adults with ADHD in preparation for discharge back to their GP for continued prescribing and monitoring.
  • Current Waiting List Time: 2 years
  • Postcode: HA1 3UJ

SW London & St George's Mental Health NHS Trust- Richmond ADHD Services

  • Services Provided: They offer specialist assessment and diagnosis of ADHD, ADHD medication initiation and titration, focussed psychological work for ADHD (group based for the majority) and specialist medical review for those with an established diagnosis who are taking medication for ADHD.
  • Current Waiting List Time: 1.5 years
  • Postcode: SW17 7DJ

SW London & St George's Mental Health NHS Trust - Sutton ADHD/ASD Diagnostic Service

  • Services Provided: They offer specialist assessment and diagnosis of ADHD and ASD, ADHD medication initiation and titration. focussed OT work for ADHD (group based for the majority) and specialist medical review for those with an established diagnosis who are taking medication for ADHD.
  • Current Waiting List Time: 1.5 years
  • Postcode: SM6 OEX

South London & Maudsley NHS Foundation Trust - Adult ADHD & Autism Outpatient Services

  • Services Provided: The initial assessment will include a diagnostic interview (DIVA) with the patient and informant(s) to identify potential ADHD symptoms and impairments. This will be done by a neurodevelopmental specialist or other trained clinical team member.
  • Current Waiting List Time: 4 years
  • Postcode: SE5 8AZ

Camden & Islington NHS FT - Adult ADHD Clinic

  • Services Provided: The Adult Attention Deficit Hyperactivity Disorder (ADHD) Clinic provides specialist assessment, medical and psychological interventions for adults who are referred with possible ADHD presentations.
  • Current Waiting List Time: 4 years
  • Postcode: NW1 0PE

Barnet, Enfield & Haringey MH NHS Trust - Adult ADHD Service

  • Services Provided: They offer new patient assessment, diagnosis, medication testing and titration with 12-month annual reviews. They are also currently working towards developing non-pharmaceutical services such as group therapy, activities and psychoeducation.
  • Current Waiting List Time: 2 years
  • Postcode: N15 3TH

If you think you have ADHD and are waiting for an official diagnosis but are looking for relief from focus and attention issues, we recommend trying the Brainzyme® FOCUS™ Starter Bundle to see if one of the three formulas might work for you.

How Much Do Private ADHD Assessments Cost in London?

Based on the assessment costs listed below, the average cost of a private ADHD assessment in London is £1,125. However, the cost of a private ADHD assessment in London can vary depending on the type of assessment, the qualifications of the professional conducting the assessment, and the location of the clinic or practice.

It's important to note that the cost of a private ADHD assessment may also depend on the type of assessment you seek. A full diagnostic assessment, which typically includes cognitive, academic, and neuropsychological testing, may cost more than a more basic assessment.

With prices like those, it is no wonder not many people go the private route unless they absolutely have to. Unfortunately, with NHS waiting times steadily increasing, that is becoming a reality for many people with ADHD symptoms.

Private ADHD Assessments London

Don't want to deal with the long wait times of the NHS and are considering going down the private route? Here is a list of private clinics and ADHD specialists available in the Greater London Area.

Ciconia Recovery Ltd - Ciconia Recovery London

  • Services Provided: Based on evidence-based best practices and meeting NICE guidelines. CRL provides a very detailed and fully comprehensive ADHD assessment that includes: a full cognitive functioning assessment, 60 minutes consultation with the psychiatrist, screening for other common mental health conditions, a psychiatric report after the assessment and a treatment plan and recommendations.
  • Assessment Cost: £595
  • Postcode: HA3 9HT

The Sloane Court Clinic

  • Services Provided: The Sloane Court Clinic offers a comprehensive diagnostic service and offers treatment for inattention, impulsivity and hyperactivity, as well as problems with organisation and planning where there is significant functional impairment.
  • Assessment Cost: £950
  • Postcode: SW3 4TD

The Effra Clinic

  • Services Provided: The Effra Clinic offers an Adult ADHD Diagnostic Assessment suitable for someone where ADHD is suspected, but they have not previously been diagnosed with ADHD. This includes the use of gold-standard diagnostic tools (DIVA 5.0), thorough psychiatric assessment and QbTest. Following the assessment, you will receive a comprehensive report.
  • Assessment Cost: £1050
  • Postcode: W1G 6HX
doctor testing a female patient for adhd

Psymplicity Healthcare

  • Services Provided: Psymplicity Healthcare provides an integrated approach to adult ADD and ADHD treatment. They tailor a treatment plan to suit your needs using an advanced combination of medication and modern psychological and coaching techniques.
  • Assessment Cost: Unknown
  • Postcode: W1G 9QD

Harley Therapy

  • Services Provided: A 90-minute comprehensive testing assessment & report and a 20-minute follow-up appointment thereafter. If you are found to have ADHD, your ADHD specialist will create a multidisciplinary treatment plan which will address your psychological, behavioural, and occupational/educational needs.
  • Assessment Cost: £2240
  • Postcode: W1G 9QD

Giaroli Centre Neurodevelopmental Psychiatry

  • Services Provided: Each clinician at this centre has their own approach to assessments and treatment and may tailor their approach depending on the patient's clinical presentation.
  • Assessment Cost: £790
  • Postcode: W1G 9QW

Tips for Managing ADHD Symptoms While You Wait for Your Assessment

Waiting for an ADHD assessment can feel like being in limbo, especially when symptoms are causing daily struggles. However, there are proactive steps you can take to manage symptoms and improve your quality of life during this waiting period. Here are some tips to consider:

1. Stay Active: Regular exercise is beneficial for managing ADHD symptoms by increasing dopamine levels and reducing hyperactivity. Find activities you enjoy, whether it's walking, cycling, or dancing, and incorporate them into your routine.

2. Limit Distractions: Create an environment conducive to concentration by minimising distractions. Turn off notifications on your phone, designate a quiet workspace, and use noise-cancelling headphones if necessary.

3. Explore Supplement Stacks: Some individuals find additional support from supplement stacks specifically formulated to support cognitive function and attention. Ingredients like L-theanine, Ginkgo biloba, and acetyl-L-carnitine are commonly included in such stacks and may offer benefits in managing ADHD symptoms.

 Remember, while these tips can help alleviate symptoms, they are not a substitute for professional evaluation and treatment. Keep communication lines open with your healthcare provider and prioritise self-care as you navigate the journey towards understanding and managing ADHD.

How to Cope With Focus and Attention Issues 

Whether it's the time spent waiting on the NHS or taking the time to be able to financially afford a private ADHD diagnosis, waiting for an ADHD assessment can be a stressful and challenging time.

While waiting for your ADHD assessment, it's essential to take care of yourself physically and emotionally, keep a record of your symptoms, educate yourself about ADHD, and seek additional support. These steps can help you manage your symptoms and improve your quality of life while you wait for an assessment.

As someone who has been in your shoes, I'd like to give you my personal recommendation on what helped keep my focus and get me through my waiting period.

Natural focus supplements.

That's right; I took natural food supplements to manage my focus and attention. And let me tell you, the one that worked best was Brainzyme® FOCUS™, a range of natural supplements formulated to Improve focus, concentration and energy for a sustained period whilst supporting mood and memory.


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Brainzyme® FOCUS™ contains plant-powered ingredients that have been scientifically proven to support concentration, cognition, energy, memory and mental performance.

That means that if you suffer from focus or attention issues, Brainzyme® FOCUS™ could help.  


With the waiting lists for ADHD assessments for adults growing ever longer with each passing month and the costs for private assessments so high, trying one of the powerful Brainzyme® FOCUS™ formulas is a convenient and affordable way to manage your focus and attention sooner rather than later.

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In conclusion, navigating the complexities of ADHD assessments in London can be daunting, with lengthy NHS wait times or expensive private options presenting significant challenges. However, amidst this uncertainty, it's crucial to prioritise self-care and seek support while awaiting assessment results.

Remember, ADHD affects not just individuals but entire communities, impacting various aspects of life. Whether it's struggling at work, in relationships, or with overall well-being, the need for accurate assessment and treatment is paramount.

While waiting for your ADHD assessment, consider taking proactive steps to manage symptoms. This includes recording your experiences, educating yourself about ADHD, and seeking additional support from friends, family, or support groups.

As a recommendation, consider trying a natural supplement like Brainzyme® FOCUS™ formulas to aid in managing focus and attention during this waiting period. With options like Brainzyme® FOCUS ORIGINAL™, PRO™, and ELITE™, there's a solution for your needs.

Don't let ADHD hold you back. Take charge of your journey towards understanding ADHD and managing your focus and attention struggles today by buying the Brainzyme® FOCUS™ Starter Bundle and discovering which formula works best for you.

Ruth Kennedy

Benjamin Martin is a nootropic and brain supplement enthusiast

Ruth Kennedy

Ruth Kennedy is a freelance life coach who, after being diagnosed with ADHD as an adult, strives to help others with ADHD manage their symptoms in the best way possible. Ruth takes Brainzyme® FOCUS PRO™ daily and swears by it to help her stay focused and productive. She uses her experience as an ADHD life coach to contribute to the Brainzyme® blogs.

An American Expat living in Edinburgh, Ruth loves exploring the beautiful city and surrounding countryside with her husband and two dogs.

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ADHD Assessment and Treatment Service :: Central and North West London NHS Foundation Trust. (n.d.).

Admin, V. (n.d.). Service Detail - South London and Maudsley.

Adult ADHD - Fast and Affordable Assessment and Treatment in London. (2022, June 20). Ciconia Recovery.

Adult ADHD Service. (n.d.).

Adult Attention Deficit Hyperactivity Disorder (ADD/ADHD) Clinic →. (n.d.). Sloane Court Clinic.

Home. (n.d.). The Giaroli Centre.

Neuro Developmental Disorders (NDD) | Camden and Islington NHS Foundation Trust. (n.d.).

Psymplicity Healthcare. (2022, August 19). Private Adult ADHD Specialists in London | Psymplicity Healthcare. Psymplicity.

Richmond Adult ADHD. (n.d.). South West London and St George’s Mental Health NHS Trust. Retrieved January 24, 2023, from

Sutton ADHD/ASD Diagnostic Service. (n.d.). South West London and St George’s Mental Health NHS Trust. Retrieved January 24, 2023, from

The Effra Clinic - Experts in ADHD and Autism. (n.d.).

Thomas, K. (n.d.). ADHD and ADD Test London • Private Psychology • Harley TherapyTM. Copyright ©2006-2021 Harley Therapy, All Rights Reserved.

*Customers have anecdotally expressed that Brainzyme® FOCUS™ products have helped with “ADHD-like symptoms"

*Mood claims are anecdotal.

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