⦿The Ancient Lights Windows

  The ‘Ancient  Lights’  Windows of Englandancient-lights-windows

An intriguing phrase. . .
On many old brick buildings around London  are signs saying  ‘Ancient Lights‘  marked  beneath
individual windows. The phenomenon is not unique to London. The signs can be found in Dorset,
Kent, and other places across England.  What are they?
‘Ancient Lights’ or the ‘Right to Light’ is an English property law that gives house owners the right
to receive natural light from and through a window  if that particular window has been receiving
light uninterrupted for  20 years.
Once a person gains the right to ancient lights, an owner of the adjoining land cannot obscure them,
such as by erecting a building, raising a wall or planting trees.