With just one episode to go until Sunday night's live auction, Block fans were treated to a little romance on the show, when Yanita's partner proposed in front of The Block cameras.

Palmerston North's Yanita McLeay was stunned when her partner Jordan Hall surprised her with a rooftop proposal, on top of her and Stacey's recently renovated house.

Hall got down on one knee, telling the yoga teacher: "From the moment we went on our first date, I have always known I have wanted to marry you."

The happy couple were then joined by Yanita's parents, who were in on the surprise, along with the rest of The Block teams. .

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"It made me cry ... it was a really cool moment, it was a little bit surreal. We were all standing on a rooftop garden overlooking the city. I mean, how romantic can you get!" said Yanita afterwards.

It's not the first proposal on The Block NZ, with Neth proposing to Sarah in 2015.