EXCELLENT
Based on 35 reviews
Posted on Google
Chloe Tregellis16 December 2025I will be forever grateful for the experience I had with my assessment for autism and ADHD. After feeling failed by the NHS I knew I needed to take steps privately but was worried about how it would go and of course the cost. I can safely say it was incredible value for how comprehensive and life changing it has been. Andy was the most incredible clinician making me feel safe and secure in what is a vulnerable and daunting situation. I felt so assured by his wealth of knowledge and experience. I felt able to express myself throughout and that I was given every opportunity to get the most out of the whole process. The follow up and report were also fantastic and again very comprehensive. All the staff from the centre were helpful and sensitive in all communication and I can't recommend the place highly enough. Thank you!Posted on Google
David Robertson16 December 2025After being told by the NHS it will be some time and being so uncomfortable in your own head. I looked around, and after a call to see how things worked, I got the information pack and booked everything there and then, and I’ve found myself now, it explains my childhood, my teens and into my adulthood. I can’t recommend these guys enough, nothing was rushed, took as long as it took Mine was even done during my time out the country, all via Teams. At 46 I can breathe today!Posted on Google
Donna G6 December 2025Trustindex verifies that the original source of the review is Google.
From start to finish the process was easy and straight forward! My daighter was aprehensive about attending, Fiona made her feel comfortable and at ease. The forms were a little overwhelming to complete, however, we understand the need for them. Thank you for the wonderful service.Posted on Google
Andy Gravett5 December 2025A great service and very professional and caring team , the process albeit quite daunting has really helped me and the assessment team were very kind and considerate throughout.Posted on Google
Heather Hearn21 November 2025I am so grateful that we approached the Autism and ADHD Diagnostic Centre about my grandson. We had been struggling with him for years, and finally decided we couldn't wait on the NHS any longer. This was the best decision we've ever made. The staff have been nothing but helpful and caring from day one. Every enquiry was answered promptly with care and compassion. Our appointment was a positive and non-stressful meeting and I would highly recommend using Autism and ADHD Diagnostic Centre to anyone.Posted on Google
Declan Rodgers4 November 2025I visited this establishment twice for two assessments with Fiona and Yvonne. I was treated with respect, the staff were polite, patient and understanding.Posted on Google
Alan Hannah27 October 2025Excellent service - compassionate, engaged and thorough throughout the process. Friendly and prompt communication. Highly recommended.Posted on Google
Margaret Ferguson23 October 2025We recently had a autism assessment with Andy for our son Ewan, I will struggle to find the words to explain how positive the experience was, from the first email I sent to the appointment with Andy was smooth and the communication from Kirsty and Dani was quick and very efficient .. shout ok to them😀. Andy is warm, approachable and supportive, putting my husband, myself and Ewan at ease right away. As soon as I sat down I knew this was the right place to have the assessment. Andy's knowledge and expertise is outstanding, put us at ease and explaining all parts of the assessment with us, going through every part, making sure we were ok and we understood the process. What stood out for us, was Andy's genuine kindest, when a situation like this can be scarey .. going for an assessment like this is not an easy process, but the outcome means that our son can move on with his life, he's not "strange" or "weird" He just has a different way of thinking and processing. Andy was able to help with the way we communicate with Ewan, going forward. If anyone is struggling with thinking you maybe living with autism or ADHD .. go and have this assessment done. It will change your life. It will let you see that this diagnosis is a different way of thinking 🤔 and wear that with pride. Thank you Andy.Posted on Google
Shelbie Gillon7 October 2025I have went 27 years of my life thinking I was odd and very strange with my behaviours I would do or say, but few weeks I had my assessment done was so relaxed lovely people around and made sure I was okay throughout the whole process witch is big for me as I suffer with social anxiety also, few weeks on had my phone call to give me my results again I was giving my results and lovely words were spoken on how my freshly diagnosis is okay and it’s fine to have Autism at start the first week was such a weird mix of emotions but now it has brought so much comfort to my life now knowing why I am the way I am. I really can’t thank yous enough for giving me my life back I can now finally move on known everything is okay truly incredible all the work that’s put in and to make everyone feel so welcome and relaxed.Posted on Google
Tim Stables2 October 2025Andy was professional, yet incredibly down to earth and comforting. After having a previous diagnosis, this assessment felt much more about myself and my experiences. No regrets having both a private and NHS diagnosis now I’ve seen the differences in procedures. Many thanks, guys.
Your Autism Assessment in London at a Glance
- Where: 10 Harley Street, London W1G 9PF
- Who we assess: adults, teenagers and children
- Clinicians: NHS-trained, with multi-disciplinary sign-off on every case
- Cost: £1,950 for adults and children alike, with no hidden costs
- First step: a free consultation, with no obligation to go ahead
- Standards: every assessment follows NICE guidance
- What you receive: a written diagnostic report, recommendations and a feedback session
Autism Diagnosis in London: What an Assessment Can Tell You
Autism is a lifelong developmental difference. It affects how a person communicates, relates to others, processes information and experiences the world. It shows up differently in every person. You may also see it called autism spectrum disorder (ASD) or autism spectrum condition (ASC).
An autism assessment can tell you whether autism explains the differences you or your child live with. You receive a clear diagnostic outcome and a written report with recommendations you can act on. Many people find that a formal answer makes it easier to ask for the right support at work, in education and at home.
Autism and ADHD can occur together. If you are considering both, read about our private ADHD assessment in London, or ask about our combined autism and ADHD assessment.
What Your Autism Assessment Includes
Whether you want a first diagnosis or a second opinion, every autism assessment at our London clinic includes:
- A free initial consultation before you commit
- A pre-assessment interview, so your clinician understands your history before the main assessment
- A validated diagnostic assessment, using structured clinical interviews and recognised diagnostic tools, in line with NICE guidance
- A developmental history, and input from parents and school for children
- A review of your case by a multi-disciplinary team
- A detailed written report with personalised recommendations
- A feedback session to go through the findings and agree next steps
The assessment looks at:
- Social communication and interaction
- Repetitive behaviours, routines and focused interests
- Sensory differences, such as sensitivity to sound, light or touch
- Attention, flexibility and how you handle change
- How these affect daily life at home, at work or at school
Is an Autism Assessment Right for You?
An assessment may help if you, or your child:
Recognise autistic traits, or people close to you have noticed them.
Have always found social situations, communication or sensory experiences hard.
Want a formal diagnosis to help you ask for the right support.
Do you want to confirm a diagnosis, or understand yourself or your child better? We shape the assessment around your age and needs.
Adult Autism Assessment in London
Many adults come to us after years of feeling different without knowing why. Some have masked their traits for a long time. Others start to wonder after a child or family member receives a diagnosis. Your clinician explores how you communicate, relate to others and handle daily life, now and in childhood.
Child Autism Assessment in London
A child autism assessment combines conversation, structured activity and observation. Your child meets the assessor in a friendly, calm setting. We gather information from you and, with your consent, from your child’s school. That way we understand how your child gets on in different settings.
Masking and Late Autism Diagnosis
Masking means hiding or copying behaviours to fit in. Many autistic people mask without realising it. It can take a lot of energy, and over time it may lead to exhaustion, anxiety or burnout.
Masking can also mean autism goes unrecognised for years. This is common in women and girls, and in adults who did well at school. Our clinicians know how masking can hide autistic traits. They take time to look beneath it.
Many people diagnosed later in life tell us the same thing. The diagnosis helps them make sense of the past and plan for the future.
What Makes Our London Autism Assessment Different
Every reputable clinic follows the same national guidance. Here is what you can expect from us:
- More than one professional signs off. A multi-disciplinary team reviews every assessment before we confirm an outcome.
- NHS-trained clinicians. The clinicians who assess you trained in the NHS.
- One price for adults and children. Some London clinics charge more to assess a child. Our autism assessment costs £1,950 either way.
- Support after diagnosis. We arrange a feedback session and point you to support, so you know what to do next.
Our Autism Clinic on Harley Street, London
You will find our London clinic at 10 Harley Street, London W1G 9PF, in the city’s medical district. You can call the clinic on 0141 212 4966.
Getting to the clinic
- Oxford Circus: Bakerloo, Central and Victoria lines
- Bond Street: Central, Jubilee and Elizabeth lines
- Regent’s Park: Bakerloo line
- Great Portland Street: Circle, Hammersmith and City, and Metropolitan lines
All four stations are within walking distance. The Elizabeth line runs direct to Bond Street from Heathrow, Paddington, Liverpool Street and Stratford. From Euston or King’s Cross St Pancras, take the Victoria line to Oxford Circus.
Adults and families come to us from across Greater London and the surrounding commuter areas. You do not need to live in London to use the clinic.
We also run autism clinics in Glasgow, Edinburgh and Birmingham, with the same assessment approach in each.
Signs of Autism an Assessment Looks At
Autism looks different in every person. Your assessment explores four main areas:
Social Communication Differences
You may find body language and facial expressions hard to read. Eye contact may feel uncomfortable. Conversations and new relationships may take a lot of effort.
Repetitive Behaviours and Routines
You may prefer predictable routines and feel distress when small things change. Repeated movements or strong, focused interests are also common.
Sensory Differences
You may react strongly to sound, light, smell or texture, or barely notice them. Busy or noisy places can feel overwhelming.
Attention and Focus Differences
You may focus deeply on things that interest you, but find it hard to switch attention. This can be a strength and a challenge at school, at work and at home.
Recognising some of these traits is not a diagnosis. A full autism assessment can tell you whether autism explains them, and what would help.
How to Get an Autism Diagnosis in London: Step by Step
Step 1
Free Initial Consultation
Tell us what has led you to seek an assessment and what you hope to get from it. We explain the process and confirm the cost. You then decide whether to go ahead. There is no obligation.
Step 2
Pre-Assessment Interview and Diagnostic Assessment
Your clinician starts with a pre-assessment interview to understand your history. The validated diagnostic assessment follows. It combines structured clinical interviews and recognised diagnostic tools, in line with NICE guidance. We go at a pace that feels comfortable for you.
Step 3
Multi-Disciplinary Review and Report
More than one clinician reviews your assessment before we confirm an outcome. You then receive a written report that sets out the findings. We write it so you can share it with employers, schools or healthcare professionals.
Step 4
Feedback and Support
We go through the outcome and recommendations with you. We also point you to support organisations and tools. You do not have to work out what happens next on your own.
Who Carries Out Your Autism Assessment
A multi-disciplinary team carries out our assessments. Depending on your assessment, the team may include:
- Consultant psychiatrists
- Clinical psychologists
- Autism specialist nurse practitioners
- Occupational therapists
- Speech and language therapists
More than one clinician reviews every assessment before we issue a report. Your outcome reflects more than one professional opinion.
Our clinicians trained in the NHS and hold registration with their professional bodies. Every assessment follows NICE guidance.
How to Prepare for Your Autism Assessment
A little preparation helps you get the most from your appointment. Before you come, you may find it useful to:
- Note real examples of what you find hard, at work, at home or with other people
- Ask a parent, sibling or older relative what they remember about you as a young child
- Find old school reports, if you have them, as these can show patterns from childhood
- List any previous assessments, diagnoses or medicines
- Tell us about any adjustments that would help you on the day, such as lighting or breaks
For a child assessment, bring recent school reports and any notes from teachers. Explain to your child that they will meet a friendly person and do some talking and activities. A familiar comfort item may help them settle.
Life After an Autism Diagnosis
A diagnosis is a starting point. Many people find it gives them answers they have looked for over many years. A diagnosis can help you in four ways:
Understanding Yourself: You can make sense of past experiences and the things you find hard today.
Strategies That Fit You: Your report recommends practical ways to build on your strengths and manage what you find harder.
Clearer Relationships: Knowing your autistic profile can help you explain your needs to family, friends and colleagues.
Access to Support: A diagnosis can support a request for workplace adjustments, help in education or local support services.
Private Autism Assessment in London: Frequently Asked Questions
A private autism assessment is a structured clinical evaluation. Specialist clinicians use it to find out whether a person meets the diagnostic criteria for autism. It combines structured interviews, a developmental history and observation. At the end, you receive a written diagnostic report. Our assessments follow NICE guidance.
Start by arranging a free initial consultation with us. If an assessment is the right step, we explain what it involves and confirm the cost before you commit. Your assessment takes place at our clinic at 10 Harley Street, London W1G 9PF. You can also call us on 0141 212 4966.
Yes. Most NHS autism services need a referral from your GP or another health professional. Some accept self-referrals. Waiting times vary between areas. Some people choose a private assessment while they wait, or instead. Our free consultation can help you decide which route suits you.
A private autism assessment at our London clinic costs £1,950, for adults and children alike. That covers a pre-assessment interview (£450) and a validated diagnostic assessment (£1,500). A combined autism and ADHD assessment costs £2,600, which is £350 less than taking the two assessments separately. There are no hidden costs. You can spread the cost, interest-free, with Klarna Pay in 3, Clearpay or PayPal Credit.
No. Many people search for an autism test, but no single test diagnoses autism. Online questionnaires can show whether it may be worth looking into further, but they cannot give a diagnosis. A full autism assessment gathers information from several sources. Qualified clinicians carry it out.
Yes. Many of the adults we see never had an assessment as children. An adult assessment looks at your childhood history and your life now, across work, relationships and daily life. People often come to us after they recognise traits in themselves, or after a family member receives a diagnosis.
Yes, it can. Many women and girls mask their autistic traits, sometimes without knowing it. Their traits may also look different from the patterns people expect. As a result, many women receive a diagnosis later in life. Our clinicians take time to look beneath masking during the assessment.
Yes. A child assessment combines conversation, structured activity and observation in a calm setting. We gather information from parents and, with your consent, from school. That helps the clinician understand how your child gets on in different settings.
Many schools use private reports to understand a child’s needs and plan support. Acceptance varies between schools and local authorities. A report can form part of the evidence for an Education, Health and Care Plan (EHCP) request, but your local authority makes its own decision. Talk to your child’s school early, so you know what to expect.
Our assessments follow NICE guidance, and you can share your report with your GP. Acceptance of private reports varies between GP practices and NHS services. Decisions about any NHS care rest with them. Ask your practice about its approach before you start, so you know what to expect.
They all describe autism. ASD stands for autism spectrum disorder, the term in diagnostic manuals. ASC stands for autism spectrum condition, which some people prefer. Clinicians no longer diagnose Asperger’s syndrome as a separate condition. It now falls within autism. Many autistic people simply prefer the word autism.
Yes. Autism and ADHD can occur together. Our combined autism and ADHD assessment covers both in a single pathway for £2,600. That is £350 less than taking the two assessments separately. Your free consultation helps you decide which assessment suits you.
You receive a written report that sets out the findings and recommendations. You can share it with employers, schools or healthcare professionals. We go through it with you, and point you to support organisations and tools. We can also talk about reasonable adjustments that may help in your situation.
No. You can travel to our Harley Street clinic from anywhere. We also run autism clinics in Glasgow, Edinburgh and Birmingham, with the same assessment approach in each.
Book Your Autism Assessment in London
Do you want a clear answer for yourself or someone close to you? Start with a free consultation. We talk through your situation and whether an assessment is the right step. There is no obligation.
Or call us on 0141 212 4966.
AADC CARES – Pathway to Understanding