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Autism Diagnostic Assessment

Comprehensive, neurodiversity-affirming Autism assessment for adults (18+), whether you're self-identified, wondering if you're autistic, or ready for a formal diagnosis.

Post-Diagnostic Support
Therapy and guidance for living authentically as an autistic adult

Self-Identified SupportAffirming care without requiring a formal diagnosis

Diagnostic Assessment
Neurodivergent-affirming, NICE Guidelines informed

Online Accessibility

Flexible appointments from your comfort zone

-  15 minute call     -  No pressure     - We'll answer your questions

HCPC logo
UKCP Psychologists
ACP UK logo
BPS logo
British Medical Journal logo
EMDR UK trained therapist
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Award-Winning Service!

​Recognised for excellence in

neurodiversity-affirming assessment and support

SME News UK Enterprise Awards 2025 - Depicting True North Psychology as the winner of "Best Neurodiversity-Affirming Mental Healthcare Provider" aware in 2025 - London
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Testimonials

 What our Clients Say About Us 

"The whole experience was excellent but a couple of things stand out: the neuro-affirming approach left me feeling empowered rather than defeated by the diagnosis. Secondly, the reports were wonderfully written and highly accessible. "

- Autism Assessment Client

EXPERTS IN LATE-DIAGNOSED & HIGH-MASKING
NEURODIVERGENCE

Tired of Camouflaging Who You Really Are?

Years of masking, suppressing stims, forcing eye contact, and rehearsing responses can lead to autistic burnout: exhaustion, loss of skills, and a growing sense of disconnection from yourself.

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Our team helps you understand the person behind the mask, so you can drop the performance and thrive as your authentic autistic self.

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5 Signs of High-Masking Autism in Adulthood

The Social Hangover

You can hold a conversation, even enjoy it, but afterwards you need hours (sometimes days) alone to recover.

A Lifetime of Scripts

You've rehearsed small talk, facial expressions and "appropriate" reactions so well that people assume it comes naturally.

Sensory Overload, Quietly Managed

Bright lights, certain fabrics, or background noise can feel unbearable, but you've learned to push through without anyone noticing.

Deep, Absorbing Interests 

You can lose hours in a subject you love, and feel most like yourself when you're immersed in it.

A Need for Predictability

Unexpected changes to plans can feel disproportionately distressing, even when you can't quite explain why.

Told You "Don't Seem Autistic"

You've been dismissed because you make eye contact, have friends, or hold down a demanding job, so surely you can't be autistic

Our Autism-Informed Services

For minds that experience and process the world a little differently. From a team that understands. We offer more than an autism assessment; we provide a compassionate space where you can explore who you truly are.

Autism Diagnostic Assessment

£1650 (payment plans available)

  • Comprehensive, compassionate assessment for adults (18+)

  • Up to 5 hours of clinician time. Time split across separate assessment sessions

  • Accurate and thorough assessment aligned with NICE guidelines

  • Experts in recognising high-masking and camouflaged presentations, particularly in women, non-binary and trans adults

  • Detailed report written in plain English and reviewed with you, to ensure understanding

  • Personalised recommendations and practical strategies, not just a diagnosis

Neurodivergent-Informed Therapy & Post-Diagnostic Support (PDS)

£110 - £140 (rate varies by clinician)

  • Therapy that celebrates your unique way of thinking and being

  • Support to unmask safely and rebuild a sense of self

  • A safe, judgment-free space to explore sensory and social experiences

  • Trauma-informed therapeutic approach

  • Support for healthier relationships with yourself and others

  • Strategies for managing sensory overwhelm and autistic burnout

Dr Sara Tookey, Founding Director and Lead Psychologist - True North Psychology

As practitioners with lived experience of neurodivergence, we don't just understand neurodivergence -

we understand the reality of living with and experiencing the world, ourselves and others through our neurodivergent minds

" I know all about the frustration
of long waiting lists and the limitations of quick, impersonal private assessments and support.

I know we deserve better.
That's why I've developed a service that offers more than a 'yes' or 'no' diagnosis. We tailor assessments, therapy and support to the unique individuals we serve."

Dr Sara Tookey

Founder, Director, Clinical Psychologist

PhD, DClinPsy, MA

​Discuss options and find your path forward. 

Compass held in hand - Find Your True North at True North Psychology. Autism, ADHD and AuDHD Assessments

Important Information About Our Assesments

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  • We provide comprehensive, NICE-guideline-compliant Autism assessments and can offer direct referrals for occupational therapy, sensory assessment, and employment support where helpful.

  • All assessments are widely recognised by GPs, employers, and educational institutions. We still recommend confirming with your GP that they'll accept a diagnosis from a non-NHS service, particularly if you're planning to access further NHS-based support.

  • We support you whether you're pursuing a formal diagnosis or identify as autistic without one; our post-diagnostic support and therapy services are open to both.

Ready to Understand Yourself Better?

Wondering if your autistic and ADHD? See our AuDHD Assessment

True North's Values in Practice

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Compassion

Our approach creates a safe, understanding space where you can explore your experiences without judgment and learn to embrace all of you (without the mask). 

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Integrity

Our practice is built on the latest research in neurodiversity-affirming care, ensuring you receive support that's both effective and tailored to  your unique way of experiencing the world.

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Sustainable

We understand that traditional office visits can be overwhelming or impractical. Our online platform makes specialised support accessible from wherever you feel most comfortable, while reducing environmental impact. 

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Community

Whether you're diagnosed, self-diagnosed, or exploring neurodiversity, you're welcome here. We collaborate with you and your support network to provide care that embraces your whole self and celebrates neurodiversity.

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