Silan came to the attention of the Tenancy Compliance and Investigations Team after an article in the media reporting on Silan's tenants who were told to leave their rental property without another place to live.
"The Tribunal decision should serve as a serious warning to landlords that they are running a business, and it is their obligation to get it right, providing a warm, dry and safe home for their tenants," Watson said.
"There are significant consequences for landlords who fail to meet their obligations, and we will not hesitate to crack down on poor landlord behaviour."
The Ministry of Business, Innovation and Employment's Tenancy Compliance and Investigations Team was formed in July last year to monitor and enforce compliance with the Residential Tenancy Act 1986.
The Team has a budget of $2.6 million this year and $3.3 million next year, and has the power to prosecute landlords who seriously or persistently breached basic housing standards.
So far, 242 complaints have been received. Of these, 26 involved no breach, a compliance agreement was reached with landlords in 76 cases and in 55 cases the team provided advice to landlords.
It has also lodged cases with the Tribunal in three incidents involving 199 properties.
Building and Construction Minister Nick Smith said the conviction sent a strong message to landlords.
"This prosecution is significant in that it is the first time the Government has pursued a landlord for failing to provide a warm, dry, safe home," Smith said.
"Last year's tenancy reforms enabled the ministry to directly prosecute landlords rather than relying on tenants to take an action in the tribunal," he said.
"The law change also introduced a requirement for smoke alarms, home insulation by July 2019 and strengthened tenancy protection when taking tribunal cases over substandard rentals."