ADHD Assessment in London
Regal Private Therapy Practice offers private ADHD assessments for adults and children at our clinic on Harley Street, London, and online. Assessments are carried out by HCPC-registered Clinical Psychologists and follow the approach set out in NICE guidance. You receive a clear outcome, a written report and a plan for next steps.
What happens in an ADHD assessment?
An ADHD assessment looks at your attention, activity and impulsivity across your life, not just how you are now. At Regal Private Therapy Practice it involves:
Initial conversation: [a short call / first appointment] to understand your concerns and check that an assessment is the right next step.
Questionnaires: completed by you and, where possible, someone who knows you well, such as a partner, parent or teacher.
Clinical interview: a detailed conversation about your developmental history, current difficulties and how they affect home, work or school. This takes around 2 hours.
Considering other explanations: anxiety, low mood, sleep problems, trauma and autism can look similar to ADHD or occur alongside it, so these are considered carefully.
Feedback and report: we explain the outcome in a feedback appointment and send a written report.
We provide gold-standard ADHD assessments using evidence-based diagnostic frameworks and validated clinical tools, offering clarity, understanding and practical recommendations for the next steps in your journey.
Adult ADHD assessment
ADHD Assessments for Professionals and High-Achieving Individuals
At Regal Private Therapy Practice, we frequently work with professionals, entrepreneurs, creatives and executives who suspect they may have ADHD.
Many adults are assessed for the first time in their 20s, 30s or later, often after years of feeling disorganised, restless or that they are working harder than others to keep up. ADHD can be missed in adults who have learned to compensate, and in women and girls, whose difficulties may look less disruptive from the outside.
An adult assessment looks at how you were as a child as well as now, so we may ask whether a parent or older relative can share their memories of your childhood. School reports are helpful if you have them.
A diagnosis can often provide a powerful sense of understanding and open the door to practical strategies that support productivity, wellbeing and long-term success.
Child and teenager ADHD assessment
ADHD can also affect children and teenagers in ways that influence learning, attention, behaviour and emotional wellbeing.
Parents often seek an assessment when they notice challenges such as:
difficulty concentrating at school
restlessness or impulsivity
emotional outbursts
struggles with organisation or homework
challenges maintaining friendships
An assessment can help families better understand their child’s needs and identify strategies and support that can help them thrive both academically and socially.
What is included in a child or adolescent ADHD assessment?
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A standardised screening tool completed by parents/teachers to measure attention, hyperactivity, and impulsivity.
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Parent and teacher versions as well as adolescent version that explore ADHD symptoms in everyday situations.
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Completed by school, helps us understand behaviour, learning, and concentration in the classroom.
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Gathers detailed information about early development, milestones, and family history.
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Parent and child complete a general mental health screening tool to understand any differential diagnoses or co-occurring mental health difficulties.
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A structured discussion to explore concerns, examples of behaviour, and family perspective.
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Age dependant - a supportive conversation tailored to the young person’s age, exploring their experiences in their own words.
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An objective computer-based task measuring attention, impulsivity, and activity levels.
What is included in an adult ADHD assessment?
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A standardised self-report screening tool to measure attention, hyperactivity and impulsivity
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Psychometric tool completed by the individual themselves and someone who knows them well to explore ADHD symptoms in everyday situations.
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Individual completes a general mental health screening tool (the GAD-7 and PHQ-9) to understand any differential diagnoses or co-occurring mental health difficulties.
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Gathers detailed information about early development, milestones, and family history.
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Completed by a parent or someone who knew you in childhood.
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A structured discussion to explore concerns, examples of behaviour across all areas of life.
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An objective computer-based task measuring attention, impulsivity, and activity levels.
What happens after an ADHD assessment?
If ADHD is diagnosed, your report explains how it affects you and what might help. Next steps may include psychological support or coaching at Regal, school or workplace recommendations, and a referral to a psychiatrist if you want to explore medication. Clinical Psychologists do not prescribe medication.
If ADHD is not diagnosed, the report explains what might better account for your difficulties and where to find support.
How much does a private ADHD assessment cost?
Our ADHD assessments start from £950 and include:
comprehensive diagnostic assessment
structured clinical evaluation
validated assessment tools
feedback session with your clinician
detailed clinical report
If you are unsure whether an ADHD assessment is right for you, we recommend starting with a complimentary consultation.
Frequently Asked Questions About ADHD Assessments
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At Regal Private Therapy Practice, we offer next-day consultations for ADHD assessments.
Same-week ADHD assessment appointments are usually available, so you don’t need to face long national waiting lists.
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Once your ADHD assessment is complete and all questionnaires are returned, we provide a comprehensive written report within 2 weeks.
Reports include diagnostic outcome, clinical formulation, and tailored treatment recommendations.
This report is suitable to share with GPs, schools, universities, or workplaces if adjustments or support are required.
Fast turnaround means you can move forward quickly with support, or workplace/ school accommodations.
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No referral is required. You can self-refer directly to Regal Private Therapy Practice by completing our short booking form or emailing us directly.
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Yes. Many individuals receive an ADHD diagnosis in adulthood after recognising patterns in their attention, organisation or emotional regulation that have been present since childhood.
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Following an assessment, your clinician will provide a detailed report and discuss recommended next steps. This may include therapy, workplace strategies, or referral pathways if additional support is required.
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Yes. We offer both in-person ADHD assessments at our Marylebone clinic and online consultations for clients across the UK.
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Private ADHD assessments in the UK vary in price depending on what is included. At Regal, an assessment starts from £950, which covers questionnaires, a clinical interview, a feedback appointment and a written report. Full information on costs can be found here.
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You can book a private assessment with Regal directly. You don't need a GP referral. Contact us / book online and we will arrange an initial conversation to check an assessment is right for you.
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You complete questionnaires, and someone who knows you may complete one too. You then have a detailed interview about your childhood and current life, followed by feedback and a written report. Other explanations, such as anxiety or sleep problems, are considered along the way.
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Yes. We assess children and young people, gathering information from parents, the child and school.
Contact Our Clinical Team Today
What are the different types of ADHD?
You may have heard the term ADD (Attention Deficit Disorder) and wondered how it differs from ADHD. ADD was once used to describe people who showed primarily inattentive symptoms, without the more obvious hyperactive or impulsive behaviours.
Today, the term ADHD is used universally, but clinicians recognise three main subtypes of ADHD.
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Difficulty focusing, daydreaming, forgetfulness, disorganisation
More common in girls and women, and often overlooked.
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Restlessness, fidgeting, difficulty waiting, impulsive speech or actions
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A mix of inattentive and hyperactive/impulsive features
Does ADHD present differently in different people? Types of ADHD explained
While inattention, hyperactivity and impulsivity are the core features, ADHD doesn’t present the same way in everyone. It can look different in adults, children, teenagers and females.
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In younger children, ADHD often shows through energy and behaviour that feel difficult to manage at school or home. Common features include:
Difficulty sitting still in class or at the dinner table
Trouble following instructions or completing homework
Forgetting school equipment, homework, or everyday tasks
Emotional outbursts or frustration when asked to concentrate
Struggling to wait their turn in games or conversations
With the right support, children can thrive. Early recognition is key.
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Adolescence brings new academic and social demands, and ADHD symptoms may become more noticeable. Teens may:
Struggle to stay focused on revision or long assignments
Be more impulsive in decision-making, sometimes taking risks
Experience low confidence or self-esteem if they feel “different”
Forget commitments, deadlines, or personal items
Find it difficult to balance independence with organisation
This stage can be particularly stressful for families, but a clear assessment helps everyone understand what’s happening and strategies for support.
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For adults, ADHD is often less about running around and more about internal restlessness and difficulties with organisation. Adults may notice:
Trouble with time management, planning, and meeting deadlines
Forgetting appointments or losing important belongings
Feeling mentally “busy” or unable to switch off
Procrastination followed by last-minute surges of productivity
Challenges in relationships, careers, or daily responsibilities
May be sensitive to perceived rejection
Impulsivity may come in the form of excessive spending, binge eating, quitting job if frustrated without back up plan, alcohol or drug use (self medication)
Recognising ADHD in adulthood can be life-changing, offering understanding and practical strategies for success.
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ADHD in females has historically been under-recognised, as girls and women often show fewer outward signs of hyperactivity. Instead, they may:
Appear “day-dreamy,” or easily distracted
Work extra hard to mask difficulties, leading to exhaustion
Experience perfectionism, anxiety, or overwhelm
Struggle with organisation while feeling highly self-critical
Burn out from managing invisible ADHD challenges
Many women do not receive a diagnosis until adulthood or only suspect ADHD in themselves after their child has been diagnosed with ADHD. Our assessments are tailored to spot these more subtle presentations, ensuring no one is overlooked.
At Regal Private Therapy Practice, our HCPC-registered Clinical Psychologists are highly skilled in recognising nuanced presentations or more subtle signs of ADHD particularly in high masking individuals, ensuring that nothing is overlooked during assessment.