If you need to notify residents about the construction work, here is a sample template you can use to write a notification letter for construction work.
To,
[Name]
Dear, [Name]
This letter is to inform you that construction work will begin in [Location] on [Date] and it will take a stipulated [Amount of time] to be completed.
Any inconveniences are regretted and cooperation is appreciated. We request you to move with caution around the construction site as it can be hazardous.
Sincerely,
[Your name]