Private autism assessmentin London.
Start with the free AQ-10 screening, then compare CQC-registered clinics serving London on price, format and the instruments they actually use.
Free to start · CQC-registered clinics · No referral needed
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Your local autism assessment options in London
London has more independent autism assessment capacity than anywhere else in the UK, which makes it one of the few places where choosing between providers is a real decision rather than taking whoever is available. That choice matters more for autism than for ADHD: providers differ in whether they use ADOS-2, ADI-R or an interview alone, whether they gather informant history, and whether a written report is included or charged separately. NHS waits for adult autism assessment commonly run to years.
From free screening to a booked assessment
Four steps — the AI report is unique to ThinkBetter.
Take a free screening
A short, free screening built on clinically validated tools including the WHO-developed ASRS v1.1. It helps you understand whether a full assessment may be worthwhile.
≈ 5 minutes · free · no sign-up to startGet a personalised AI report
A clear, plain-English report explaining what your responses may mean — yours to keep, share, or bring to an appointment.
Plain-English report · instantGet matched to a CQC-registered clinic
We match you with a suitable CQC-registered clinic in London that works to recognised UK quality standards. You choose who, where and when.
Matched clinics · weeks, not yearsBook your assessment directly
Book a private assessment with your matched clinic. You see clear, upfront pricing before you commit to anything.
Transparent pricing · you stay in controlInside an autism assessment in London
Clinics vary in what they include, and the difference is rarely obvious from a price. These are the stages a thorough assessment covers, and the instruments a CQC-registered clinic should be able to name when you ask.
Screening
AQ-10A short, validated self-report questionnaire. The AQ-10 was developed at the University of Cambridge Autism Research Centre and is the tool NICE recommends in UK primary care. Screening indicates whether a full assessment is likely to be worthwhile. It is self-completed and is not a diagnosis, a triage decision, or a clinical opinion.
Pre-assessment history
Clinics gather developmental history before the appointment — school reports, and where possible an account from a parent, partner or someone who knew you as a child. ADHD and autism are lifelong, so evidence that traits were present in childhood matters to the diagnostic criteria.
Diagnostic assessment
ADOS-2 · ADI-RThe assessment itself, usually two to three hours and sometimes split across sessions. ADOS-2 is a structured observational assessment of social communication and interaction; ADI-R is a detailed developmental interview conducted with someone who knew you in early childhood. Adult autism assessment is typically led by a psychologist or psychiatrist, and thorough clinics use more than one source of evidence rather than a single interview.
Report and outcome
NICE CG142A written diagnostic report setting out what was assessed, the outcome against DSM-5 or ICD-11 criteria, and recommendations. NICE guideline CG142 governs autism diagnosis in adults in the UK. The report is the document that carries weight afterwards — for workplace or university adjustments especially — so check it is included in the fee rather than charged as an extra.
After a diagnosis
Adjustments · supportThere is no medication for autism itself, so the pathway after diagnosis is different from ADHD. A diagnosis supports reasonable adjustments at work or in education under the Equality Act 2010, and can be used for Access to Work and disability services. Where medication is discussed it is for co-occurring conditions such as anxiety, depression or ADHD, not for autism. Post-diagnostic support through the NHS is limited in many areas, so ask a clinic what it offers after the report.
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 autism clinics serving 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.
13 other clinics can also assess you by video from London, if you would rather not travel.
Faster does not mean lower quality
Anyone can promise speed. Our difference is honest quality governance — the CQC-registered clinics we match you with also work to recognised UK quality standards, with multidisciplinary support and clinical supervision.
Content clinically reviewed by Dr Miriana Vrajitoriu
Consultant Child & Adolescent Psychiatrist, Founder & Medical Director
GMC 7211553
- Named clinical reviewer. Our clinical content is reviewed by a Consultant Psychiatrist on the GMC Specialist Register — not anonymous.
- MDT support and supervision. Matched clinics work to recognised UK quality standards (such as UKAAN/CAAQAS), with multidisciplinary input and clinical supervision.
- 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 autism assessment in London: FAQ
How much is a private autism assessment in London?
Do I need a GP referral to be assessed in London?
What does an adult autism assessment involve?
Is the written report included in the price?
Private autism assessment elsewhere in the UK
Waiting times and NHS funding positions differ by area. These pages carry the local picture for each.
Book a private autism assessment in London
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