[2][3] In 1841 a further five-storey spinning mill was added, an identical weaving shed, a new boiler house and second chimney, and a gas retort.

This mill was 16 m wide, allowing it to house state-of-the-art self acting mules with the maximum number of spindles.

[1] The 1877, Oldham-style, spinning mill was five storeys high built on a basement with a hipped mansard roof.

It had a floor separation of 4.1 m and was 16 bays long and 55 m and 40 m wide[4] with a six-stage water tower and stair column on one corner.

Thus the span of 1.53 m allowed the floor placing of the columns to be at 3.2 m. This accommodated the longer and wider mules of the time.

The rigid box frame of columns, beams and cross beams was lighter and stronger than previous methods and barely need any load-bearing support from the exterior walls, so the windows could become larger allowing sufficient light to penetrate to the centre of the 40 m mill.

[7] Clarence Mill was used for spinning finer counts of sea island cotton, for lace.

The Swindells, and to a lesser extent the Gregs, dominated the mid-century textile industry in Bollington.

He was totally dependent on the canal to move in his raw cotton and coal, and to take away his finished cloth.

The Swindells did not build tied cottages for their workers, but were generous benefactors of the local Methodist church.

The mill was now taken over by George Swindells and Co, and in 1898 became part of the Fine Cotton Spinners and Doublers Association Ltd that had been pioneered by Horrocks of Preston in 1887.

When planning permission was granted for the mill to be converted into apartments, a Section 106 agreement required the sum of £30,000 to be set aside to build a footbridge.