You receive this quest after meeting Preston Garvey back in Sanctuary Hills (your home town).
He will ask you to talk to Sturges to assist the new settlers.
You have to complete the following tasks by using the Workshop Menu (Hold
while within the green boundary of the settlement), you can salvage from around the settlement to build all these items:
1. Build 5 beds - Furniture menu - Each bed requires 4x steel, 5x cloth. Place the beds within a house, I fitted them all in the main house by removing the old furniture and kitchen.
2. Provide 6 clean water - Resources menu - Build two water pumps in dirt (at the back of the house is an ideal place). Each water pump requires 1x concrete, 4x steel and 1x gear.
3. Provide 5 food - Resources menu - Plant vegetables in dirt (these can be any that you have collected). Each crop will provide 0.5 of food. At the back of the house there are some crops already planted, if you harvest them you can plant more i.e one gourd = 0.5 crops) keep harvesting and planting until you have 5 food production.
4. Build 6 Defense - Defense menu - You need to build three guard towers (anywhere within the green boundary) For this each tower will need 12x wood and 6x steel.
Once you have crops and defenses, you will need to assign one person to defense and one to crops. To do this, while in the Workshop menu, click on any person to command them, then click on the crop or defense to assign them.
You can do these all in one go or speak to Sturges in between each one.
Once all are complete the achievement will pop.