Orion Heritage is the UK’s largest independent heritage consultancy.
We work with developers, planning teams and landowners across the country to navigate heritage constraints and keep projects on track. Our role is simple: to provide rigorous, independent advice that helps projects move forward.
Because we are entirely independent — with no in-house fieldwork teams — our recommendations are always proportionate, evidence-led and aligned with the realities of development. Where specialist delivery is needed, we manage the process with trusted partners — letting us focus on what our clients need most.
Why independence matters
Independence allows us to give clear, commercially-focused advice.
No delivery bias: We don’t undertake fieldwork ourselves, so our advice is always proportionate and evidence-led.
Clear, pragmatic strategy: We focus on what is necessary to support planning decisions — not unnecessary investigation.
Programme and budget protection: Our recommendations are aligned with development realities and commercial constraints.
Strong negotiation and appeal support: Our work stands up to scrutiny in contested planning environments.
Our Values
Our work is guided by five core values.
- Knowledgeable
- Responsive
- Inquiring
- Honest
- Precise
Key Services
Archaeology
Strategic archaeological advice that identifies risk early, negotiates proportionate investigation and supports planning success.
Built Heritage
Robust significance assessments and heritage impact analysis that provide clear, defensible planning strategies.
Appeals & Expert Witness
Independent, authoritative evidence for planning appeals, inquiries and contested development proposals.
Our Experience
From major housing allocations to complex urban regeneration, Orion Heritage has supported projects across the UK.
Explore our national portfolio of work.
Our Clients
