American wholesale retailer Costco will open its $100 million Westgate store on September 28, ending months of speculation about the date of its debut in New Zealand.

The retailer initially planned to open last month, however it was delayed due to bad weather and Covid-related restrictions.

The new store spans 1.4ha and will feature a petrol station, tyre centre, optometrist and food court as well as a wide range of food and grocery products.

The retailer will hire about 350 workers and has brought in 30 to 40 staff from Australia to train locals.

In April, the retailer opened its first petrol station in Auckland selling fuel at around 20 cents a litre, cheaper than nearby service locations.