
Assembly · Buildings under construction
Narrow-plot block mid-build
Narrow-plot block mid-build is the larger of the two assembled buildings in the Buildings under construction pack, and it is made from 695 placed parts drawn from 23 unique component models. The structure comes first: 72 frame columns, 63 slab bays, and stair, lift and doorway pieces around the core, including 24 core walls and 24 core wall returns. Finishes sit on top of that, with 69 finish piers, 35 lintels, 32 sills and 41 window inserts, alongside backing and insulation layers.
Temporary works are included too: 56 edge guard spans with 56 posts, 14 formwork edges and 9 formwork props. The pack's other assembly, the six-storey block in three build stages, covers the same residential build. Load this file as it stands, or read the part list to change which layers are present and how they are arranged.
An assembly from the Buildings under construction pack: 695 placed parts positioned by an assembly file, using 23 unique component models. Load the whole thing with the pack's three.js loader, or read the file to build your own variations.
The picture is a studio render. View in 3D loads the GLB files themselves in three.js; switch between high, medium and low to compare.
Included in Buildings under construction (£19), which contains 28 component models and 2 assemblies.
See the pack| Placed parts | 695 |
|---|---|
| Unique component models | 23 |
| Format | Assembly file (JSON) + GLB parts |
Load it in three.js
import { loadAssembly } from './assemblies.js'; // included in the pack
const group = await loadAssembly('assemblies/construction-mixed-stage-long-plot-proof.json');
scene.add(group);Made from these component models

Slab bay

Slab stair opening

Stair floor landing

Slab lift opening

Frame column

Core doorway

Core wall

Core wall return

Stair half flight

Stair landing

Wall backing window

Insulation window

Finish pier

Finish sill

Finish lintel

Window insert

Backing corner

Insulation corner

Finish corner

Edge guard span

Edge guard post

Formwork edge

