NY7853 : Window in Ninebanks pele tower I believe that this window was blocked up to avoid 'window tax'. The pele tower had a number of small defensive windows making this an expensive building under the tax of 1696. The owner would have reduced the number of windows to 10 or less. By doing this the tax was halved to 2 shillings (10p). In today's terms that's a saving worth about £170