Private Autism Assessments in London

NICE-Compliant Autism Diagnosis for Children & Adults

Our central London autism clinic at Charterhouse Clinic, 98 Crawford Street, offers private, NICE-compliant autism assessments for children aged 2+ and adults — delivered by experienced UK-registered clinicians, just three minutes from Marylebone station.

London-wide adult NHS autism waits currently exceed two years across most boroughs, with significant variation between trusts. Our private service is designed to give Londoners and Home Counties residents a clearer, faster route to a formal diagnosis — without compromising on the clinical depth that a good assessment requires.

Our Marylebone clinic is three minutes from Marylebone station, five from Edgware Road, and well placed for clients travelling from across Greater London, Hertfordshire, Buckinghamshire, Surrey, Berkshire, and Essex.

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Private Autism Assessments Serving Greater London and the Home Counties

Our London autism assessment clinic is situated in the heart of the city and is easily accessible for those living in London and the Home Counties.

We provide:

  • Clear diagnostic outcomes
  • Practical, personalised recommendations
  • A respectful, person-centred and neuro-affirming assessment experience
  • Short waiting times and face-to-face appointments

Our approach is designed to offer clarity, understanding and confidence – from first enquiry through to diagnosis and next steps.

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Experienced Autism Clinicians Supporting London and the Home Counties

Every assessment at our London clinic is carried out by UK-registered clinicians with extensive experience in autism diagnosis across the lifespan. The team is DBS-checked, professionally regulated, and trained in the ADOS-2 and the wider set of NICE-recommended diagnostic tools.

The London adult autism population we see is diverse — clients who have spent years on NHS waiting lists, professionals seeking clarity to access workplace adjustments, parents who recognised something familiar in their child’s assessment journey, and individuals who have masked for decades. Our role is to bring a careful, considered, multi-disciplinary lens to every case.

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Clinic Location - London

Our autism assessment clinic is located at Charterhouse Clinic, 98 Crawford Street, London W1H 2HL.

The clinic is an 18-minute walk from Paddington Station, an 8 min walk from Marylebone, Edgeware Road Tube station, or an 11 min walk from Marble Arch Tube station.

We offer appointments on weekdays and Saturdays at this clinic.

Why Choose a Private Autism Assessment in London?

Autism Assessments for Children in London

We offer private autism assessments for children aged 2 years and over for families at our London clinic.

Our child assessments are designed to be developmentally appropriate, thorough, and family-centred, ensuring parents receive clear answers and meaningful guidance.

Our private child autism assessments may be appropriate if:

  • Your child has been referred for an NHS assessment, but you do not want to wait
  • A professional or school has suggested your child may be autistic
  • You have concerns about your child’s development, communication, or behaviour
  • Your concerns have been dismissed, but you feel something is being missed
  • Your child has already been assessed, and you want a second opinion

Child Assessment Process

Our child assessment pathway includes:

  • Pre-assessment screening and background questionnaires
  • Inofrmation gathering from school or nursery (where appropriate)
  • Detailed developmental history interview with parents/carers
  • Direct child assessment and structured observation
  • Multi-disciplinary clinical review
  • Comprehensive written diagnostic report
  • Feedback session with clear explanations and next steps

You can find out more about our child assessment process here.

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Autism Assessments for Adults in London

We also provide private adult autism assessments for adults aged 18+ in London, including those who may have been missed, misdiagnosed, or unsupported earlier in life.

Many adults seek a private autism assessment after years of feeling misunderstood, overwhelmed, or exhausted by everyday demands. Our clinicians understand how autism can present differently in adulthood, particularly in women, non-binary people and high-masking individuals.

A private adult autism assessment in London may be appropriate if you:

  • Have been referred for an NHS assessment, but don’t want to wait
  • Have been told you show autistic traits and want clarity
  • Are experiencing chronic exhaustion, burnout, anxiety, or overwhelm that could be caused by undiagnosed autism
  • Suspect you may be autistic after personal research or reflection
  • Need a diagnosis to access workplace adjustments, university support, or Access to Work
  • Have previously been assessed and you want a second opinion

Adult Assessment Process

Our adult autism assessments follow a NICE-compliant diagnostic pathway and include:

  • Pre-assessment background and screening questionnaires
  • A detailed developmental and personal history interview
  • Direct clinical assessment and structured observation
  • Multi-disciplinary clinical review
  • A comprehensive written diagnostic report
  • A feedback session explaining outcomes and recommendations

Reports are written clearly and are widely accepted by employers, universities and public bodies.

You can find out more about our adult assessment process here.

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Why Choose a Private Autism Assessment in London?

A private autism assessment in London gives you a fast, rigorous diagnostic route in a city where NHS waits stretch into years for most adults. Our Marylebone clinic is well placed to support clients from across the capital and the wider Home Counties.

Choosing us means:

  • A NICE-compliant diagnostic pathway, the same standard the NHS uses
  • UK-registered clinicians with extensive autism diagnostic experience
  • Face-to-face appointments in central London, available within weeks
  • Detailed written reports recognised by London schools, employers, universities, and local authorities
  • A neuro-affirming, respectful, person-centred approach

Our adult clinic places particular emphasis on identifying the subtler presentations of autism — including high-masking adults, women, and non-binary clients who have often been overlooked by earlier pathways.

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What You Can Expect From a Private Autism Assessment in London

Every London assessment includes:

  • A dedicated assessment coordinator as your single point of contact
  • A NICE-compliant assessment pathway using DSM-5 criteria
  • A multi-disciplinary clinical review
  • Direct assessment using the ADOS-2
  • A detailed written diagnostic report
  • Personalised recommendations
  • A follow-up conversation to discuss the outcome

Our Charterhouse Clinic is a 3-minute walk from Marylebone, 5 from Edgware Road, and 8 from Baker Street, making it easy to reach by Tube and mainline rail. The clinic itself is calm, professionally fitted, and explicitly built for therapeutic and diagnostic work.

Why Choose Jo Condon Autism Assessments in London?

When you choose us for an autism assessment in London, you can expect:

  • A team specialising specifically in child and adult autism assessment
  • UK-registered, highly experienced clinicians
  • An assessment process that typically begins within a few weeks
  • A person-centred, neuro-affirming approach
  • Transparent pricing
  • Face-to-face appointments at our Marylebone clinic, with fully remote options where clinically appropriate

In a city with many private providers, the depth of clinical experience matters. We focus exclusively on autism diagnosis and have built our process around making that experience feel clear, supportive, and rooted in evidence — whatever the outcome.

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Frequently asked questions