Private ADHD assessmentin London.
Start with a free screening, then get matched with a CQC-registered clinic in London for a full private assessment — clinically reviewed throughout.
Free to start · CQC-registered clinics · No referral needed
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- CQC-registered clinics
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Your local ADHD assessment options in London
London has some of the longest ADHD assessment waits in the country. Through the standard NHS pathway, waits commonly stretch from two to six years, and in parts of London and the South East they run longer still. NHS Right to Choose can be faster, but across England Integrated Care Boards have introduced funding limits on Right to Choose providers during 2025-2026, and in a number of areas new bookings have slowed or paused. For many Londoners, a private assessment is the realistic way to be seen in weeks rather than years.
- Assessments from
- £425
- Shortest published wait
- 14 days
- Nearest consulting room
- 1 miles · London
- Can assess you by video
- 13 clinics
From free screening to a booked assessment
Take a free screening
≈ 5 minutes · free · no sign-up to startGet a personalised AI report
Plain-English report · instantGet matched to a CQC-registered clinic
Matched clinics · weeks, not yearsBook your assessment directly
Transparent pricing · you stay in controlInside an ADHD assessment in London
The stages a thorough assessment covers, and the instruments a CQC-registered clinic should be able to name when you ask.
Screening
ASRS v1.1Pre-assessment history
Diagnostic interview
DIVA-5 · QbTestReport and outcome
NICE NG87After a diagnosis
Titration · shared care
What each stage involves, in full →
ThinkBetter is a marketplace, not a clinical service. The assessment is carried out by the independent clinic you choose, and any diagnosis is theirs to make.
CQC-registered ADHD clinics in London
The Chelsea Psychology Clinic
The Chelsea Psychology Clinic is a private psychology and psychiatry practice with clinics in Chelsea and Harley Street, London, offering both in-person and online sessions. It provides neurodevelopmental assessments for ADHD and autism spectrum disorder (ASD) for both adults and children, alongside general psychological therapy and psychiatric services. Listed fees include Adult ADHD Assessment (£1100), Child ADHD Assessment (£2100), Adult/Child ASD Assessment (£2250 each), and a combined ADHD/ASD Assessment (£3750).
This clinic hasn't verified its listing yet. Details are taken from public sources and may not be current.
The London Psychiatry Clinic
The London Psychiatry Clinic is a private psychiatry practice based on Harley Street, London, offering ADHD assessments and treatment for adults and children, either in person or via online video consultation. Assessments are conducted by consultant psychiatrists and take around two hours, with an adult ADHD assessment starting from £1,160 including a diagnostic report; child assessments require direct enquiry. The clinic also provides ADHD coaching, ADHD therapy, and general mental health services, but its published content does not describe an autism assessment service.
This clinic hasn't verified its listing yet. Details are taken from public sources and may not be current.
Private ADHD Clinic
Private ADHD is an online clinic offering private ADHD assessments and ongoing medication management for adults and children (from age 6) across the UK, delivered via video call by psychiatrists and ADHD specialist clinicians. Assessments involve a clinical interview, structured diagnostic tools, and a formal written report, followed by optional medication titration and shared care arrangements with GPs. The site mentions autism appointments in passing but does not describe an autism assessment service in detail.
This clinic hasn't verified its listing yet. Details are taken from public sources and may not be current.
The Greenwood Clinic
7 Harley St, London W1G 9QD
The Greenwood Clinic is a private psychiatric clinic on Harley Street, London, led by Consultant Psychiatrist Dr Attalla. It offers assessment, diagnosis and treatment for adult ADHD alongside a range of other psychiatric conditions, including a prescribing service where clinically indicated. The clinic does not mention autism assessment services.
This clinic hasn't verified its listing yet. Details are taken from public sources and may not be current.
Harley Therapy - Psychotherapy & Counselling
10 Harley St
Harley Therapy is a London-based practice (Harley Street, City of London, and online) that connects patients with independent psychiatrists and psychologists offering private ADHD assessments for teenagers (14+) and adults, as well as adult autism and combined ADHD/autism assessments. It also offers general counselling, psychotherapy and CBT for a range of mental health issues. Clinical assessments and treatment are provided by independent practitioners practising from Harley Therapy's consulting rooms, not by Harley Therapy itself.
This clinic hasn't verified its listing yet. Details are taken from public sources and may not be current.
ADHD Health Clinic
98 Crawford St, Marylebone, London
ADHD Health Clinic is a private UK clinic offering ADHD, autism and combined ADHD/autism assessments for both adults and children, delivered online or in person at clinics in central London and Barnet. Assessments are carried out by consultant psychiatrists and other clinicians, with services also including medication reviews for those with an existing ADHD diagnosis, dementia assessments and general psychiatric assessments. The clinic is regulated by the Care Quality Commission and patients can self-refer and book directly online.
Chelsea Pharmacy Medical Clinic
Lower Floor, 61 - 63 Sloane Ave, London SW3 3DH
Chelsea Pharmacy Medical Clinic is a private GP and multi-specialty medical clinic in Chelsea, London, offering an ADHD clinic that includes assessment, diagnosis, prescription and treatment for both adults and children. The clinic also provides general psychiatry services covering ADHD alongside other mental health conditions, delivered in person at its London premises. No autism-specific assessment service is described on the site.
This clinic hasn't verified its listing yet. Details are taken from public sources and may not be current.
Stepping Stones Clinic
Stepping Stones Clinic is a private mental health clinic in London for children, young people and families, working with those aged 0-18 years. It offers ADHD assessments (including QB computer-based testing and school observation) and Autistic Spectrum Condition assessments (including ADI-R and ADOS), each followed by a detailed report and recommendations, with treatment options such as medication, therapy and parent support. The clinic accepts self-referrals as well as referrals from GPs, social care, schools and hospitals, and is regulated by the CQC.
This clinic hasn't verified its listing yet. Details are taken from public sources and may not be current.
Stepping Stones Clinic
Stepping Stones Clinic is a private mental health clinic in London for children, young people and families, working with those aged 0-18 years. It offers ADHD assessments (including QB computer-based testing and school observation) and Autistic Spectrum Condition assessments (including ADI-R and ADOS), each followed by a detailed report and recommendations, with treatment options such as medication, therapy and parent support. The clinic accepts self-referrals as well as referrals from GPs, social care, schools and hospitals, and is regulated by the CQC.
This clinic hasn't verified its listing yet. Details are taken from public sources and may not be current.
The Cardinal Clinic
Cardinal Clinic is a private mental health hospital in Windsor, Berkshire, offering consultant psychiatrist-led adult ADHD assessments and specialist adult autism assessments alongside a wider range of psychiatric treatment and inpatient/day patient/outpatient care. Adults can self-refer for ADHD or autism assessment without needing an NHS referral, and assessments use structured clinical interviews, validated rating scales (e.g. Conners, DIVA-5, ADOS-2, ADI-R) and developmental history-taking. The clinic also provides broader residential and day patient mental health treatment, but the ADHD and autism assessment service itself is delivered on an outpatient, self-referral basis.
This clinic hasn't verified its listing yet. Details are taken from public sources and may not be current.
13 other clinics can also assess you by video from London, if you would rather not travel.
Faster does not mean lower quality

Content clinically reviewed by Dr Miriana Vrajitoriu
Consultant Child & Adolescent Psychiatrist, Founder & Medical Director
GMC 7211553
- NICE-compliant, GP-ready reports. Assessments produce a thorough, NICE-compliant report designed to be GP-ready. Whether a GP offers shared care is at their discretion — we never guarantee acceptance, and we would be wary of anyone who does.
Private ADHD assessment in London: FAQ
How much is a private ADHD assessment in London?
Do I need a GP referral to be assessed in London?
Will my GP accept a private ADHD diagnosis?
How quickly can I be assessed?
Private ADHD assessment elsewhere in the UK
Waiting times and NHS funding positions differ by area. These pages carry the local picture for each.
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