The measures came into force on Thursday, November 5, and last until December 2.
It means that shops and businesses have had to shut once again, however this time non-essential retail can remain open for online delivery and click-and-collect.
Other Lockdown news: These trusted businesses are offering online shopping during lockdown | Full list of businesses which will be allowed to open in Portsmouth during coronavirus lockdown
We sent one of The News’ photographers down to Commercial Road to see which businesses have remained open.
Click through the gallery below to see what is open in the Portsmouth city centre during lockdown – and any restrictions in place.
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13. Student Choice
Student Choice grocery store in Commercial Road, Portsmouth is open during the lockdown. Picture: Sarah Standing (051120-7737) Photo: Sarah Standing
14. Scoops Gelato and Kens Fried Chicken
Scoops Gelato and Kens Fried Chicken are both open to order takeaway deliveries from in Commercial Road, Portsmouth - however dining in is not allowed under new measures. Picture: Sarah Standing (051120-7742) Photo: Sarah Standing
15. Greggs
Greggs in Commercial Road, Portsmouth is open for click and collect and delivery - Only one adult per household will be allowed in the shop. Children can join them if needed. Picture: Sarah Standing (051120-7731) Photo: Sarah Standing
16. Subway
Subway in Commercial Road, Portsmouth is open for takeaway collection deliveries during the lockdown. Picture: Sarah Standing (051120-7735) Photo: Sarah Standing