A private autism assessment with Private Psychiatry offers a clear, structured, evidence-based pathway to understanding whether you meet criteria for autism spectrum disorder (ASD). Our assessments are designed to be clinically robust, respectful, and tailored to adults seeking clarity about lifelong patterns of social communication, sensory experience, behaviour, and identity.
We follow national clinical guidelines and international best practice standards. The service is suitable for adults who have long suspected they may be autistic, recognise patterns such as sensory sensitivities or differences in social interaction, or want diagnostic clarity for personal, workplace, educational, or support-planning reasons.
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Before your consultation, you will complete structured questionnaires designed to identify autism-related traits across key domains. These are reviewed in advance by your clinician and include:
RAADS (Ritvo Autism Asperger Diagnostic Scale)
A validated screening measure frequently used in adult autism assessments, exploring social relatedness, communication style, sensory and perceptual experience, and focused interests.
Autism Quotient (AQ) Self-Report
A self-report questionnaire that looks at typical autism traits such as social communication patterns, attention-to-detail, preference for routines, and flexibility of thinking.
Observer Report
To gain an accurate developmental picture, we ask for a report from someone who has known you since childhood (for example, a parent, guardian or long-standing family friend). This helps clinicians understand early social, communication, behavioural, sensory, and learning patterns that are key to diagnoses of autism as a neurodevelopmental condition.
Completing these before your consultation allows the clinician to spend the appointment time focusing on areas most relevant to your history and current experience.
Your main assessment appointment takes approximately 90 minutes and is conducted by a clinician who specialises in private autism assessments.
During the consultation the clinician will:
Where clinically appropriate, the clinician may communicate the outcome during the appointment. In other cases, final review of all information (including informant report) may be needed before providing a conclusive outcome.
After the appointment you will receive a comprehensive written report/letter summarising:
If a diagnosis is confirmed, the clinician can also advise on strategies, resources, and pathway suggestions tailored to your needs.
Our private adult autism assessment includes:
We adhere strictly to UK national clinical standards, including recommendations from the National Institute for Health and Care Excellence (NICE) and the Royal College of Psychiatrists.
NICE guidance on the diagnosis of autism spectrum disorder in adults makes clear that assessment should be conducted by appropriately trained specialists and should include a detailed developmental history, comprehensive clinical interview, and information gathered from an observer. Diagnosis must be based on careful evaluation, not screening tools alone, and should reflect a full understanding of lifelong patterns.
The Royal College of Psychiatrists similarly emphasises that autism diagnosis requires specialist expertise, consideration of early developmental traits, lifelong behavioural patterns, and thoughtful assessment of alternative or co-existing conditions. It highlights that high-quality assessment must be structured, evidence-based and clinically rigorous.
Our assessment model has been designed around these standards. The 90-minute specialist consultation, advance review of structured questionnaires, inclusion of an informant report, and comprehensive developmental history ensure that your evaluation is thorough, responsible and aligned with recognised national best practice.
Our free online autism screening test for adults offers a quick, confidential way to explore whether Autism (ASD) may be affecting you and whether a full clinical autism assessment could be beneficial.
Yes, an observer report is an important part of autism assessment. A report from someone who has known you since childhood greatly assists in building an accurate picture of early behaviour and patterns.
No. While structured questionnaires like RAADS and AQ inform the assessment, diagnosis is based on a synthesis of detailed clinical history, informant input, structured tools, and professional judgement in line with national guidelines.
In many cases, the clinician can communicate the outcome during the appointment. Where further review is needed, the final result will be confirmed shortly afterwards and included in your written report.
Yes, your diagnostic report can be shared with GPs, employers, educational or occupational health services for support planning, reasonable adjustments, or treatment planning.
