Adult Autism (ASD) Assessments
Understanding whether you may be autistic as an adult can bring clarity to lifelong patterns in communication, behaviour, and sensory experience. At Dementech Neurosciences, we provide private adult autism assessments in London delivered by experienced clinicians, with clear diagnostic outcomes and tailored next-step guidance.
This service is designed for adults who want a timely, structured assessment without long waiting lists, and who are seeking a professional understanding of autism spectrum disorder in adulthood.
Book A Consultation
Why Choose Dementech for Private Adult Autism Assessment?
Choosing a private assessment allows you to access timely, specialist-led care without extended waiting periods.
At Dementech Neurosciences, assessments are carried out by clinicians experienced in adult neurodevelopmental conditions, ensuring a detailed and considered approach.
Same week consultations
Fast access to specialist autism consultations in London.
Video
consultations
Remote consultations available when attending in person isn’t possible.
Prices starting
at £485
Clear pricing for private ASD consultations with no hidden costs.
Detailed Care
Guided assessment, diagnosis, and next-step recommendations.
Find An ASD Specialist
Send us a message and we will get back to you
Our team is on hand to answer any questions or concerns that you may have. Simply fill in the form below with your details, and we will get back to you very soon.
ASD Symptoms and Causes
At Dementech Neurosciences, our team of ASD specialists understand the complexities of living with adult autism. We tailor the diagnostic assessments we use and suggest treatment plans around your specific needs and symptoms.
Autism spectrum disorder (ASD) is a lifelong neurological and developmental condition that affects how a person experiences the world. It can influence everything from:
- Communication and social interaction
- Behaviour and routines
- Sensory processing
- Emotional regulation
- Executive functioning (planning, organisation, decision-making)
Autism is not an illness and does not have a “cure.” Instead, it is a neurodevelopmental difference.
In the UK, autism is recognised as a disability under the Equality Act 2010, meaning individuals with a diagnosis are entitled to reasonable adjustments in education and the workplace.
ASD is described as a spectrum condition, which means its effects vary greatly from person to person. Some people may need significant support in daily life, while others may live independently but still face challenges with social communication, relationships, or workplace settings.
Autism is often identified in childhood, but because it is lifelong, the characteristics and challenges of ASD continue into adulthood. Many adults live for years without recognising they are autistic, sometimes developing coping mechanisms known as “masking” that hide their difficulties.
In the UK, accessing an ASD assessment through the NHS as an adult can take up to several years. Choosing a private assessment provides quicker answers and earlier access to the right support.
Adults with undiagnosed ASD may face difficulties such as:
- Navigating workplace environments and career progression
- Managing financial or organisational responsibilities
- Building and maintaining personal relationships
- Coping with anxiety, depression, or burnout due to lack of support
Autism can present differently in adults compared to children, and many adults develop strategies to mask or cope with their challenges. Because of this, identifying and recognising autism spectrum disorder in adults can be difficult.
| Sign | How it Presents in Adults |
| Social cues | Difficulty interpreting tone of voice, body language, or subtle hints |
| Routines | Preference for predictability, distress if routines are disrupted |
| Intense focus | Deep interest in specific topics or hobbies, sometimes to the exclusion of others |
| Sensory sensitives | Discomfort with loud noises, bright lights, crowded spaces, or certain textures |
| Small talk and conversations | Finding social conversations draining or challenging |
| Isolated | Feeling different, misunderstood, or withdrawing socially |
| Challenges with relationships | Struggles with intimacy, miscommunication, or sustaining friendships |
| Planning | Difficulty with executive functioning, managing tasks, or financial responsibilities |
Although autism is not something to be “cured,” receiving a diagnosis as an adult can be life-changing. The process provides answers, validation, and access to the right support.
- Clarity and self-understanding: Receiving an ASD can help to provide clarity, finally having an explanation for lifelong experiences and challenges
- Formal diagnosis: A professional ASD assessment is essential for accessing tailored support, accommodations, and services. A private, affordable assessment from Dementech can help to access screening without the excessive wait list.
- Workplace protections: An ASD screening can open eligibility for reasonable adjustments under the Equality Act, such as flexible working or quieter environments
- Improved healthcare and support: Greater recognition from healthcare professionals, therapists, and social services
- Better mental health: Many adults feel relief and validation after diagnosis, reducing anxiety and self-doubt
- Stronger personal relationships: Helps friends, partners, and family understand and support you more effectively
ASD Diagnosis and Treatment at Dementech
At Dementech Neurosciences in London, our private ASD assessments are designed for adults who need clear clinical answers without long delays or surface-level screening.
We don’t treat autism assessment as a tick-box exercise. Each assessment is carried out by experienced clinicians who specialise in adult neurodevelopmental conditions, with a focus on how traits present in real life, not just on paper.
Our process is structured to build a clear understanding of your neurodevelopmental profile from multiple clinical angles.
- Clinical consultation: An in-depth discussion exploring your current challenges, lived experience, and reasons for seeking a private ASD assessment in London.
- Developmental and neurohistory review: We explore early developmental patterns, including communication style, social interaction, and behavioural traits from childhood through to adulthood.
- Cognitive and behavioural assessment: This stage examines areas such as social communication, executive functioning, sensory processing, and adaptability in everyday environments.
- Diagnostic formulation: All clinical findings are reviewed by your specialist to determine whether your presentation meets criteria for autism spectrum disorder.
- Feedback and clinical report: You receive a clear diagnostic outcome with a written report explaining findings and outlining next steps where relevant.
Meet Our ASD Specialists
Home to some of the world’s leading specialists across a variety of dementia conditions, our London-based team are at the forefront of delivering pioneering diagnosis and treatment options to patients. Our support can help improve your outcomes and overall quality of life.
Prof. K. Ray Chaudhuri – Parkinson’s Specialist in London
Medical & Scientific Advisory Board
Movement Disorders
Neurologist
Parkinson's Disease
Dr Lucio D’Anna – Consultant Neurologist in London
Lead Specialist
Memory Clinic
Neurologist
Private Neurology
Stroke Treatment
Dr Nikolay Dimitrov – Consultant Neurologist in London
Movement Disorders
Neurologist
Parkinson's Disease
Private Neurology
Dr Biju Hameed – Consultant Paediatric Neurologist in London
Movement Disorders
Neurologist
Paediatric Neurology
Dr Tahira Choudry – Consultant Neurologist
Epilepsy
Movement Disorders
Neurologist
Parkinson's Disease
Private Neurology
Dr. Maria Papachatzaki – Consultant Neurologist, MS Specialist
Epilepsy
Multiple Sclerosis
Neurologist
Private Neurology
Frequently Asked Questions
Autism is sometimes misunderstood, and adults may wonder whether their experiences are a sign of autism spectrum disorder. An assessment can help to distinguish ASD from other conditions with overlapping traits, such as ADHD, OCD, or social anxiety.
What ASD is:
Autism is a recognised neurodevelopmental condition, with lifelong symptoms often first appearing in childhood.
What autism is not in adults:
- A mental illness (though mental health challenges may co-exist)
- Something caused by upbringing, trauma, or poor parenting
- A condition that can be “cured”
- The same in every person: each autistic adult has a unique profile of strengths and challenges
No, you can self-refer for a private ASD assessment at Dementech.
Assessments are typically completed in one to two appointments, with feedback provided promptly.
Our consultations start at £485, however, we do offer bespoke pricing. Contact our team for full details.
You will receive personalised recommendations, including therapy options, workplace support, and referrals to autism-specialist services.
Yes, autism presents differently in women and is often underdiagnosed, but our specialists are trained to recognise a wide range of presentations.
Yes. Many autistic adults are first misdiagnosed with anxiety, depression, or ADHD because of overlapping traits. Our specialists can provide a full assessment to clarify whether ASD is the underlying condition.
Absolutely. Diagnostic criteria and understanding of autism have evolved significantly. It is possible to receive a diagnosis in adulthood, even if one was missed in childhood.
We offer both in-person assessments at our London clinic and remote consultations, depending on your needs and preferences.
Yes. All assessments at Dementech follow NICE guidelines and result in a formal diagnosis that is recognised for healthcare, workplace adjustments, and legal protections under the Equality Act.
Yes. Your assessment and results are strictly confidential, and you decide who to share them with, whether that’s your GP, employer, or family.
If your assessment shows you do not meet the criteria for ASD, our team will provide guidance on other possible explanations for your challenges and help you access the right support.
Some private health insurers may cover all or part of the cost. We recommend checking with your provider, and our team can supply documentation to support claims.
Hear what our patients have to say
P Allen
“My family and I experienced one of the hardest times of our lives having to deal with my wife’s deteriorating condition. I would like to personally thank the lovely young lady Zobiaa from Dementech, for showering us with compassion, empathy and genuine care and concern. Her professionalism, high-level customer service and communication, eye for detail, and willingness to go the extra mile to accommodate our needs and make not only my wife, but our whole family, feel as comfortable and supported as possible, is something we will always be grateful for. Thank you so much for your friendly and polite presence Zobiaa and taking the time and effort to build a relationship with us. You really made our visits to the clinic a positive, 5 star experience.”
Anonymous
“Dementech Neurosciences is a relatively new clinic specialising in the scientific assessment and treatment of Parkinson’s Disease. It represents a significant development in the treatment of Parkinson’s and has done a great job of establishing itself and its reputation in a short period of time. The premises are extremely well situated in central London, the consultant neurologists are all at the top of their field in their specialisation of the treatment of Parkinson’s Disease, and the clinical and administrative staff are of a similar standard. The atmosphere of the clinic is positive and the results, in the short period of time I have been able to assess, have been similarly positive.”
N Mohammed
“Have had nothing but kindness and professionalism from Dementech and all their staff. From their initial guidance by Shakeela, through to staff conducting the MRI tests and Dr. Lucio D’Anna for his expertise clarity of explanation, compassion and consideration. Special mention to Zobia, who saved the day with her quick thinking that helped my mother-in-law to obtain extended care. Overall a perfect experience. Cannot recommend them enough.”
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Contact Details
Opening hours: Monday – Sunday:
08:00 – 20:00
0208 015 4365
Lister House
11 Wimpole Street
W1G 9ST
Harley Street area
London, UK