About Us

Janus Conservation Ltd is a specialist historic building surveying and heritage planning consultancy, with offices in Thame, Oxfordshire and Mayfair, London.

We deal exclusively with the historic environment, working with both commercial and private/residential clients along with major landowners such as the National Trust and Royal Household. We are both RICS Regulated and an IHBC recognised Historic Environment Service Provider. 

We pride ourselves on providing meaningful and pragmatic advice with an industry-leading customer experience.     

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RICS Logo
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Our Team

Director
Historic Building Surveyor & Heritage Consultant

Historic Building Surveyor & Heritage Planning Consultant

Historic Building Surveyor

Accounts Manager

Graduate Heritage Consultant

The Climate Pledge

The Climate Change

In August 2021, Janus Conservation joined a group of highly influential organisations by signing up to The Climate Pledge and committing to reaching net-zero carbon emissions by 2040. Committing to the Pledge further reinforces Janus Conservation’s wide-ranging focus on sustainability.

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Rupert Hilton

Rupert Hilton

Director

  • RICS Conservation Accredited Building Surveyor
  • CIOB Conservation Certified Specialist
  • MScCHE, BA(Hons), IHBC, MCIOB

Rupert is an accomplished historic building surveyor, construction manager and heritage consultant, and one of only a handful of practitioners in the UK to hold full conservation accreditations with the Royal Institution of Chartered Surveyors (RICS), the Chartered Institute of Building (CIOB) and the Institute of Historic Building Conservation (IHBC). In addition, he is now seeking to become a full member of the Institute of Conservation (ICON) – illustrating his passion for the historic environment.

Having previously worked for a number of very well-respected companies, Rupert quickly established himself as one of the most versatile, qualified and capable conservation practitioners in the country, before founding Janus Conservation in January 2020.

He currently acts as a quinquennial inspector to numerous historic churches, including being named surveyor of the fabric to Nicholas Hawksmoor’s iconic grade I listed Christ Church, Spitalfields in 2022.

Rupert is now particularly interested in ‘retrofit’, making responsible and technically compatible improvements to the energy efficiency of historic buildings, and is a qualified Retrofit Designer for Pathway C (High-Risk Schemes) under PAS 2035.

Oliver Sharpin

Oliver Sharpin

Historic Building Surveyor & Heritage Planning Consultant

  • MSc, BA(Hons), AssocIHBC

Oliver has had an interest in history from a young age. He graduated with a Bachelor’s degree in history from the University of Portsmouth before returning to study for an MSc in Historic Building Conservation where he graduated in 2018.

Following this, he worked for a prominent surveying and historic building repair company in the north of England where he was exposed to a range of construction types including public buildings, churches and residential properties.

Oliver joined Janus Conservation in September 2020 and is now adept at undertaking a range of complex inspections of historic buildings, as well as the production of Heritage Statements & Impact Assessments.

In addition, he has recently achieved Associate Membership of the Institute of Historic Building Conservation and is working towards full membership as he continues to develop in the field of heritage planning.

Henry Eyres

Henry Eyres

Historic Building Surveyor

  • BSc Project Management for Construction

Henry graduated from University College London in 2021 with a First Class degree in Project Management for Construction. He also received the coveted Chartered Institute of Building Certificate of Excellence for achieving the overall highest graduation mark. He has a background working for a prominent Conservation Builder in the South West of England, undertaking a wide range of works on historical and listed properties.

Henry is now building on his experience with the view to becoming an RICS chartered building surveyor.

Claire Lambert​

Claire Lambert

Accounts Manager

  • BSc (Hons), Cert Acct (Open)

With a background in practice management and finance, Claire joined the Janus team in early 2022.  She holds a Professional Certificate in Accounting plus a bachelor’s degree in Psychology with a special interest in Organizational Psychology.

Claire works closely with other Janus team members in order to deliver an efficient, friendly and customer-focussed accounts service.

 

 

 

 

 

 

 

 

Elsa Sibley

Elsa Sibley

Graduate Heritage Consultant

Elsa Sibley is a passionate and driven individual with a keen interest in bridging the gap between conservation and the built environment.



Her academic background in real estate and experience as a rotational apprentice surveyor equip her with a strong foundation in property development, valuation, and management across all use types. This enables her to navigate technical aspects alongside public engagement and human considerations.

Beyond her academic and professional achievements, Elsa actively seeks opportunities to contribute to her community, through volunteering with organisations like IntoUniversity.

Elsa is currently working towards her Assoc qualifications with the Royal Institution of Chartered Surveyors and Institute of Historic Building Conservation.