Primark has registered increased sales during the Christmas period as it continues to expand its store footprint.

The fashion retailer posted a 4.5% increase in sales on a constant currency basis in the 16 weeks to January 4.

Primark attributed the sales growth “almost entirely to the increase in selling space”.

Sales in the UK increased 4% compared with the same period the previous year. However, the fashion giant registered a “marginal decline” in like-for-like sales during the period.

Following a “particularly good” November and December Primark increased its share of the total clothing, footwear and accessories market.

Sales in the eurozone increased 5.1% and the US delivered an increase in like-for-like growth during the same period.

Primark increased its selling space by 0.2 million sq ft. Its store in Portugal was relocated to a larger location, the store in Norwich was extended and new stores were opened in Spain, Germany and Italy.

Primark’s parent company Associated British Foods’ total revenue was up 4% during the 16 weeks to January 4.

Sales for its grocery division were flat compared with the previous year, but margins registered an “improvement”.