It was added to the Victorian Heritage Database on 15 October 1970,[4] when it was purchased by the Trustees of the Castlemaine Art Gallery and Historic Museum (CAGHM)[2] which oversees its management.

[10] In 1984, after 3 years of being open to the public, the grounds and plantings were restored with funding from the Victorian government Gardens and Environment Committee to mark the state's 150th anniversary.

[13] The work was further financed, undertaken and continued by a Friends of Buda association[14] founded by local historian Peter Cuffley[15] who after making a survey, recruited the services of Castlmaine horticulturalists Clive and Margaret Winmill.

Arriving at Port Phillip, Melbourne, early in 1853, he went directly to the rich alluvial goldfields of Forest Creek, and the bustling new township of Castlemaine.

Kate was a keen art collector and amongst her purchases still retained at Buda are works by Margaret Preston, Mildred Lovett, Norbertine Bresslern Roth and other women printmakers of the era.

Since opening to the public, Buda has been managed by a huge team of volunteers from the local community in many varied roles ranging from garden and maintenance, to archivists, to reception and tour guides.

[6] To augment gate takings, fees for functions and events, shop and nursery sales, funding from local and other levels of government for the maintenance of the property since its opening has fluctuated, or has been insufficient.

[18] In 2018, Buda Historic House and Garden appealed to Mount Alexander Shire for $60,000 for conservation management plans and funding for a concept plan for the development of a new building to house a museum and archives office, and requested an increase from $7000 to $20,000 in recurrent annual funding, “to ensure BUDA can maintain its current level of community engagement”, but was refused.