My garden suffers from three nearby streetlights - I live on a corner - and some highly invasive bright domestic 'security' lights. None are actually necessary, all waste energy and are detrimental to wildlife as well as stargazing.
That's why I signed this petition to begin to tackle light pollution:
https://petition.parliament.uk/petitions/632558
Petition: Introduce 'Right To Dark' law for home and business properties

Make a law that would make any artificial light trespass from one property to neighbouring properties an offence. Such lighting would include: security, safety, decorative and business display lighting.

Petitions - UK Government and Parliament
See also the relevant All-Party Parliamentary Group at:
https://appgdarkskies.co.uk/
APPG for Dark Skies

UK parliamentarians fighting light pollution to protect our dark skies APPG for Dark Skies Learn More

APPG for Dark Skies