In the UK many Councils require new houses to have chimneys, “To match the character of the adjacent houses.’
The problem is almost all urban areas have been smokeless zones for over 40 years, which means no open fires.
Also most new houses have either gas central heating or storage heaters so there is no ‘need’ for chimmneys.
To solve the problem at a low cost manufacturers now make plastic dummy chimneys!
Photograph from Tuke and Bell