Open-space Adoption Simple Intelligent Solutions

Meet the Team

Maria Wilson Property Assets and Rental Manager

International Association Commercial Contract Manager, Advanced Practitioner Certificate (CCMAP) in 2018

Maria joined JBA in July 2019 as OASIS Land and Property Manager. Maria has over 30 years first-hand experience in residential and commercial property purchases, and 10 years experience in the lettings market. Maria compliments JBA's legacy management with rich commercial experience and excellent customer service background.

Maria previously worked in corporate environments managing contracts for private and public sectors: 1 year - llumina Cambridge Ltd, as EMEA Senior Tender Specialist developing a new function for Illumina Cambridge in fully scoping and building a European-wide tender response team. 10+ years - Carl Zeiss Limited as UK Commercial Contract Manager, in construction, implementation and full management of a new Commercial department. Winning 1st place awards for UK Pubic Tender framework responses.

Maria enjoys finding new walks by exploring the countryside, and is a keen amateur gardener which includes talking to her chickens each morning before work! Maria also has a great interest in wild bumble bees. 

For all property enquiries: MariaWilson@oasisltd.co.uk


Ivan Johnson Land Asset and Adoptions Manager

Ivan joined JBA in November 2023 as Land Asset and Adoptions Manager. Ivan has nearly 50 years experience of working in the Social Housing sector, managing all aspects of tenancy management, including property and ground maintenance. 

Ivan previously worked for Local Authority and Housing Associations. Starting as Housing Assistant with Breckland DC; rising through the ranks to Deputy Chief Housing Officer before working on establishing a new Housing Association – Peddars Way HA to manage approx. 7000 homes and associated public open spaces. PWHA later merged with Suffolk Heritage HA to form Flagship Housing Group where he remained as Director responsible for PWHA. After taking a short career break he was tempted back to a similar role with Broadland HA based in Norwich.

Ivan enjoys travelling (cruising); most sports and exercising his Australian Labradoodle Holly. He is also a keen amateur gardener. He and his wife also keep 11 tortoises. 

For all land enquiries: ivanjohnson@oasisltd.co.uk


James Blake Chairman

BA (Hons), Dip LA (Hons), CMLI

James is the founder of JBA and started the company in 1988. James’ objectives are to deliver cutting edge, value-innovative design, products and approaches combined with a strong focus on meeting the strategic objectives of his clients. 

James has a passion for landscape architecture of which his university background was based, however his achievements have gone far further, by inventing commercial products and establishing two other companies, OASIS and BBP. He has also become an author of a university text book on landscape to allow his plethora of knowledge to be shared.

In his spare time, James is an avid Ipswich Town FC supporter and a keen fisherman but his overall passion is his family.


Louise Blake Director and Company Secretary

BSc in Sociology and Home Economics, PGCE

Louise was previously Head of Food Studies at a local independent girls school. Now, she is Head of Human Resources, Company Secretary and a Director at JBA.

Together with her husband, James, Louise is passionate about her local football team, Ipswich Town and attends a majority of the matches, both home and away. One thing Louise is most well known in the office for is her ability to bake!