Grand-Builder
by login34245
Grand-Builder lets a player place large structures from schematics in an animated, step-by-step build instead of pasting them into the world at once.
What it does
The mod takes a large structure file and builds it in the world gradually, with the placement animated so the construction can be watched as it happens. Before any block is set, a preview shows where the structure will land, and a confirmation step has to be accepted before the build starts. Players can change the construction speed while it runs, pause it at any moment and resume later, and roll back the most recent build if the result is not what was wanted.
Custom structures can be saved from a finished build and reused as templates, and external structure files in the supported formats can be loaded directly. Creative builders, survival players, server event hosts, map makers and anyone testing large structures can use it before committing a structure to the world. It runs on Fabric for Minecraft 1.21.11 and needs to be installed on both the client and the server, since the animation and controls are handled on the client while the build itself is applied on the server. The code is open source under the MIT License, and the latest Fabric file is 1.1.1 for 1.21.11, published on 2026-10-04.
Key features
Animated construction
Large structures are placed block by block in an animated sequence rather than appearing all at once.
Preview before building
A preview shows the structure at its planned position before any block is changed in the world.
Confirmation before launch
A build does not start until the player accepts a confirmation prompt, which guards against accidental placement.
Speed, pause and rollback
Construction speed can be switched during a build, paused at any moment and resumed, and the last build can be rolled back.
Custom structure saving
Finished builds can be stored as custom structures and reused as templates in later projects.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Version Builder is a Fabric mod for 1.21.11 that is client or server optional and is not open source, under All rights reserved. Placement Helper is a client-side Fabric mod for 1.21.8 – 1.21.11, released under a Creative Commons Attribution Non Commercial 4.0 license and not open source. Build undo is a Fabric mod for 1.21.11 that runs on client and server and is also under All rights reserved, not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Grand-Builder | Fabric | 1.21.11 | Client and server | 2026-10-04 |
| Version Builder | Fabric | 1.21.11 | Client or server, optional | 2026-04-14 |
| Placement Helper | Fabric | 1.21.8 – 1.21.11 | Client-side only | 2026-03-04 |
| Build undo | Fabric | 1.21.11 | Client and server | 2026-05-21 |
Questions
Does Grand-Builder need to be installed on both sides?
Which loader does Grand-Builder use?
Can a finished build be reused?
In the catalog
Grand-Builder is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 19,862 mods support Minecraft 1.21.11.
Similar mods
What the author says
Grand Builder is a visual Fabric mod for Minecraft 1.21.11 that makes building large structures from schematics and custom templates easier and more impressive. The mod keeps the main “wow effect” of animated structure building, while making the mechanic practical for normal gameplay, survival worlds, and servers.
Official listing
- Modrinth page
- modrinth.com/mod/grand-builder
- Owner
- login34245
- Published
- 2026-04-16
- Updated on Modrinth
- 2026-10-04
- Facts verified
- 2026-10-15