[4] Poundley had close connections with Naylor family who, in 1835, had acquired the Brynllywarch estates at Kerry from William Pugh, the son of his guardian.
He was employed to undertake survey work of these acquisitions, now bound in two atlas volumes in the National Library of Wales.
In the 1860s until the partnership with David Walker was dissolved, their output was prodigious and included considerable quantities of estate housing.
This was produced for a group of Denbighshire Gentlemen under the sponsorship of Lord Bagot, of Pool Park near Denbigh and of Blithfield in Staffordshire.
The double cottage design produced by Poundley is very plain and lacks the decorative features seen on his work for the Naylor's Montgomeryshire estates.
He also published plans for a simple double cottage of Bungalow form which would have cost £180 and the walls of which were supported on an iron framing.
[14] Thomas Garrett Newnham was the engineer to the Western Branch of the Montgomeryshire Canal in the 1830s and was a close associate of William Pugh, of Brynllywarch.
In 1834 he was admitted as a member of the Institution of Civil Engineers and in 1836 he subscribed to Augustus Pugin’s Examples of Gothic Architecture, where he is described as an ‘Architect’ and his address is given as Newtown.
He was involved in promoting an alternative route, on behalf of the now bankrupt William Pugh for the London to Holyhead Railway, in competition with Brunel and Stephenson.
At about this time he left for India to become Chief Resident Engineer of the Sindh Railway and was responsible for St Andrew's Church, Karachi, which was completed in 1867.
Later in the 1870s Newnham became deputy agent of Indus Flotilla, a steamship company[16] Extensive estate housing with typical red brick and stone rusticated quoining.