The Sushi Co opened its new outlet in Green Lanes, Harringay, on March 8.
The new store is the result of a £225,000 investment and has created 16 jobs for the local area.
The opening is part of a major expansion programme for 2025.
To celebrate the opening, the restaurant offered new customers 40 per cent off their first three orders made online or through their app.
The first 100 people through the doors from 11am on Saturday were also able to claim a free sushi roll.
A spokesperson for The Sushi Co said: “We’re really proud of our new venture in Harringay and wanted to do something extra special for our new customers.
“And what’s better than a huge 40 per cent discount on your first order?”
The restaurant will serve fresh sushi made in front of customers in an open live kitchen.
The spokesperson said: “At The Sushi Co we follow the path less trodden to seek out the highest quality ingredients for our live sushi kitchens, without compromising the environment that they come from.
“Our dedicated team works with a small hand-picked and highly accredited group of suppliers who deliver vibrant, eye-catching and flavoursome ingredients to our kitchens daily.
“Once our team takes hold of these fresh ingredients, we follow authentic Japanese processes to prepare our handmade Minutes Fresh Sushi.
“We’re proud to take all the necessary extra steps to provide great quality sushi whilst doing our bit to be responsible in how we go about it.”
The company is planning to roll out at least ten more store openings over the coming year, with more on the drawing board.