The period between the merger and the conversion to a public company in 2000 saw sustained and substantial growth. Financial growth was aided by inflation, particularly in house prices, but the increase in members was from 164,000 in 1964 to 1.85m in 1988. As well as organic development through the opening of new branches there were 24 acquisitions of other building societies between 1967 and 1987. The Hearts of Oak Society in 1982 was of particular benefit as it brought in 28 branches, mainly in the south-east. By 1988 the number of branches had increased from the 52 post-merger to around 250. Despite all this, the Society was still only number eight in the industry – a reflection of the amalgamations that were taking place elsewhere.