There was a further expansion in construction activity last month, according to the Ulster Bank Construction Purchasing Managers' Index.
June represented the tenth consecutive month of growth in the sector, with new orders, purchases and employment all increasing.
The index - which has been rising since September 2013 - showed the most growth in the residential sector, with activity on housing projects increasing at a "substantial and accelerated pace".
Commercial activity continued to rise, though at a slower rate than in May.
Meanwhile a solid decline in civil engineering activity was recorded, with the pace of reduction faster than that seen in May.