Profits at Costcutter retailer J&J Wilson have leapt 15% to £197,000 as it continues to build its store estate.

The family-owned business increased its store numbers by four to 51 in the year to January 2009, according to accounts filed this week at Companies House. No turnover figures are available in the accounts but the retailer claimed like-for-like sales rose in that period and gross margin was up from 30% to 30.9%.

The company, whose stores are all in holiday parks, was also helped by the growing trend, caused by the weak pound, of people holidaying in the UK rather than going abroad. So far, turnover in 2009 was about 20% up year-on-year, said MD Derrick Lloyd. Sales have been boosted by the heatwave, and the forecast of a hot summer has encouraged even more people to have a 'staycation'.

"We are miles ahead at the moment and the season hasn't even properly started yet," said Lloyd. "People are being pleasantly surprised by the holiday parks here. I think they'll book up for next year too."

The retailer has opened three new shops since the account period and a further six will be added to the estate this winter, bringing the total to 60.