On Thursday, the Planning Authority (PA), in collaboration with the Superintendent of Cultural Heritage, granted Palazzo Marnisi the highest level of protection as a Grade 1 property, which is currently on sale for €10 million

Grade 1 property status recognises the property’s historical, architectural and social significance.

“The scheduling of Palazzo Marnisi as a Grade 1 property comes at a time when the Planning Authority is marking 30 years of safeguarding historic structures across the islands, from grand estates like this palazzo to diverse structures including modern buildings, military fortifications and industrial structures,” the PA said.

Notably, Palazzo Marnisi once belonged to lateral thinker Edward de Bono and has been on sale for at least 10 months. The property was granted a conservation order from the superintendence after an earlier inspection had revealed that the palazzo suffered extensive vandalism, squatting and abandonment.

Palazzo Marnisi / Remax

The palazzo, situated in the area above the bay of Marsaxlokk was described by the PA as “a remarkable example of 17th century Maltese architecture and aristocratic heritage.”

It was built in 1650 by Giacomo Testaferrata de Robertis the Capitano della Verga, who had inherited the estate through his marriage to the great-granddaughter of Ugolino Bonnici, the original founder of the estate.

The estate features a private chapel dedicated to Saint Domenic and is adorned with significant architectural features, including sculpted benches, balustrades, and classical columns that give it a stately presence.

Palazzo Marnisi / Remax

Two prominent coat of arms, those of Testaferrata and Giovanni Francesco Abela, Chaplain and Vice-Chancellor of the Order of St John, decorate the courtyard, further highlighting its historic and social significance and linking it to these two significant families.

The building’s layout and design reflect an architectural style synonymous for noble residences of the period, embodying the fortified, introspective approach to construction prevalent in rural Maltese villas at the time, highlighting the importance of safety at the time.

Its façade includes a grand staircase leading directly from the courtyard to the Piano Nobile.

Palazzo Marnisi / Remax

Still on sale

Edward de bono / debono group
Edward de Bono / de Bono group

It is said that Edward De Bono rented the palazzo for many years and even served as his registered address in Malta. Despite living abroad for the majority of his life, he spent his final years in Malta, in a residence in Rabat.

In the property listing, the property is said to be complemented with landscaped gardens, a pool area spacious terraces and 16 tumoli of land.

The stunning architectural gem also includes large, vaulted rooms, a dining room a drawing room, and five bedrooms.

Other listings saw it priced at €8 million, describing it as a blank canvas waiting for its new owner to add their personal touch.

Related

roberta metsola

French NGO accuses Metsola and MEP of working with USA to dismantle Green Deal  

February 6, 2026
by Tim Diacono

Bloom calls out EU officials for 'adopting the Trump administration's strategy' to torpedo corporate environmental due diligence

Storm-hit businesses can now apply under amended Malta Enterprise scheme

February 6, 2026
by Nicole Zammit

A new measure offers targeted aid to storm-hit businesses while giving non-compliant operators one year to regularise their permits

Access to finance and rising fraud risks discussed at Malta Women & Finance Summit 2026

February 6, 2026
by Nicole Zammit

Expert advice for spotting scams and opinions on investing