ModsJava
Building Nexus
Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.


Building Nexus
Building Nexus is a mod about building. In this mod you will find many blocks to build beautifull things in your worlds.
The mod will be updated regularly to implement many more blocks and correcting bugs if there are any.
Feel free to give me feedback if you find any bugs !
For now you wil find :
- A lot of pillar for greek temple for example
- Wood encased windows
- Wooden beam support
- Finaly mossy stone, andesite, granite and diorite
- Colored amethyst blocks
- Colored sea lanterns
- Colored redstone lamps
- Patterned glass
- Block variants for concrete and terracotta (stairs, slabs, and chiseled)
- New bushes like the one in the latest version of minecraft
- Block variants for ore blocks (stairs and slabs)
- And finaly new building blocks :
- White marble and its smooth version
- Black marble and its smooth version also
- A new item balck quartz to craft the black marble
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.8, 1.21.1, 1.21
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Ships as buildingnexus-1.1.1.jar — drop this file into the mods folder
- Download size: 269 KB
- Download link checked 28 Sept 2026 — working
These come from our own check of the pack file, not from the source page.