Secret recordings played in the Supreme Court trial of a Perth millionaire have revealed the property developer's cunning plan to pull off an almost $20 million insurance scam.

Two clips filmed on a mobile phone in 2017 by Hossean Pourzand's accomplice run for more than 35 minutes, and were recorded without the 65-year old’s knowledge.

Mr Pourzand can be heard manipulating his friend to burn down his Welshpool warehouse, offering him $50,000 to get the job done, on top of 12 months free rent and a $120,000 loan. 

“We know the risk. You know the reward,” Mr Pourzand is heard telling his accomplice.

“I think tonight is the night…” 

“Those shoes are okay. Put a cap on and you know, you just get a scarf that you cover your face…”

The blaze in March 2017 caused significant damage to the commercial building, and one day later Mr Pourzand lodged an insurance claim.

The grandfather was sentenced to more than seven year's jail, and will have to serve serve five years and four months before he is eligible for parole.

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