Cops and dobbers: One team faces a shock penalty as another reports their 'suspicious' activity: 'It's the rules'

Teams are racing to finish their back of house rooms on The Block, with Britt and Taz getting a head start on landscaping.

Being coppers, the duo are sticklers for the rules, but neighbour Sonny spotted some "suspicious" activity... (in Block land, that is).

Sonny dobbed them in and you can catch exactly what happened in the video here:

This year, the teams have been given the all clear to work ahead on landscaping and landscaping only.

Stream every episode ever of The Block for free on 9Now.

Sonny noticed the sub-frame being built for House 3's deck which technically, is part of the alfresco area.

"To me, that's working ahead for next week," said Sonny, which breaks a strict rule in Block land.

READ MORE: The little-known rules of The Block

Sonny casually mentioned it to Foreman Dan, who realised Sonny just might be right.

"It's the rules, you're not allowed to work ahead," said Sonny.

Dan caught on that Sonny and Alicia are very much playing the game, and walked over to House 3 to deliver a very harsh punishment.

Next Monday, the start of actual alfresco week, Britt and Taz will be banned from working on the deck at all.

"A full day?!" Taz wanted to make clear.

It didn't take long for Britt and Taz to realise it was Sonny who brought it to Dan's attention.

Britt felt she was being "penalised" by their rivals because everyone else was behind. But, the coppers were happy to cop a day for unknowingly breaking the rules.

DAN VS DANI EXCLUSIVE: Couple in utter disbelief over team's 'weird' bedroom inclusion

"We have different styles of playing the game, it's just not how we compete," reacted a salty Britt.

Want more Block? Dan and Dani are in disbelief over team's 'weird' bedroom inclusion in their exclusive video series here:

The Block airs Sunday at 7pm and continues Monday to Wednesday at 7:30pm on Channel 9 and 9Now.

Stream every episode ever of The Block for free on 9Now.

FOLLOW US ON WHATSAPP HERE: Stay across all the latest news from your favourite shows via our WhatsApp channel. No comments, no algorithm and nobody can see your private details.