Inspiried by grod4L, the original author of the Sanctuary City. I followed his footstep to make my own version of Sanctuary City as well.
Unfortunately, I can't continue to expand this settlement because of the limitation of my hardware. I've been experiencing some graphic glitches due to the high number of objects. I hope you will enjoy it!

This blueprints will add over 4500 objects into your settlement. 

Required DLCs: 
Every DLCS

Required Mods:
Essentials:
Homemaker - Expanded Settlements
Snap'n Build 
Crafting Workbenches - Craftable Weapons Armor Clothing Ammo Junk
Thematic and Practical
Functional Displays
Advanced Power Conduit
Do It Yourshelf
OCDecorator - Static Loot
Art Connoisseur System
Craftable Vault Elevator for DLC
Scrap Everything(Required for scrapping the roofs)
Modular Kitchen
Immersive Vendors 
Gruffydd's Signs and Posters
Gruffydd's Signs of the Times
NorthlandDiggers Resources
Better Stores
Craftable Balcony Supports
Vault 88 - More Vault Rooms 
Wooden Prefabs Extended
Warehouse Shelves for components and ammo

Highly Recommanded:
Singing Settler
We Are The Minutemen -Enhanced
Minutemen Morale Pack
Real Troughs - New Brahmin Feeders
Brighter Settlement Lights