Custom Design

Custom design without the cost premium

All3 enables fully custom buildings to be designed and delivered at the cost and speed of industrial production - eliminating the trade-off between customisation and efficiency. By designing directly to plot geometry and producing custom components through robotic fabrication, we deliver distinctive architecture on complex urban sites without the cost penalties of conventional bespoke construction.

Urban sites are inherently complex

Urban development is rarely simple. Cities are built incrementally, and available plots are shaped by existing buildings, infrastructure, ownership boundaries, and planning rules. As a result, sites are often irregular, access is constrained, and regulatory requirements vary by location and context.

Traditional construction can adapt to these conditions, but only through bespoke engineering, manual coordination, and labour-intensive delivery - driving higher costs, longer timelines, and increased risk. Prefabrication promises efficiency, but most systems rely on fixed grids, predefined spans, and catalogue-based components that struggle to adapt to non-standard sites, forcing designs to be simplified or compromised.

In both cases, complexity is treated as a problem to be managed, rather than a condition to be designed for.

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A typical irregular shaped urban plot with non-standard angles and constrained access - no problem for All3

Designed for urban development

All3 takes a different approach: designing each building directly to the constraints of its specific site rather than forcing sites to conform to standardised systems.

Our AI-powered design platform treats complexity as the starting point - optimising building form, structural logic, and component specifications based on the unique geometry, regulations, and conditions of each plot.

This approach enables non-standard layouts, irregular geometries, and site-specific solutions without any cost premiums or design compromises.

How custom design works

Plot-specific design optimisation

Building massing and layouts adapt to plot geometry and planning constraints, avoiding the inefficiencies of rigid structural grids and maximising usable area within the available envelope.

Component-level structural optimisation

AI performs structural optimisation at an individual element level - columns, beams, slabs, junctions - using precise loads, spans, and regulatory requirements. Each element is sized specifically for its role, eliminating over-dimensioning and unnecessary structural mass.

Flexible robotic fabrication

90% automated robotic production delivers fully custom structural elements with no cost premium. Software-controlled production cells reconfigure instantly for different components, bringing prefabrication efficiency to non-standardised buildings.

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AI-powered design and advanced robotics ensures precision fabrication of unique components

More usable area on constrained sites

Designing at the level of individual components has a direct impact on usable space. By fitting layouts precisely to site boundaries, access conditions, and planning constraints (including B-Plans and surrounding context), All3 reduces circulation losses and avoids the inefficiencies inherent in rigid structural systems.

Element-level optimisation also reduces structural thickness, increasing net usable area within the same building envelope. On tight urban plots, these gains materially improve spatial efficiency   increasing net usable area by up to 3%   often making the difference between a marginal scheme and a profitable project. Custom design, in this context, is not an aesthetic choice; it is how constrained sites become economically viable.

What custom design unlocks for inner-city development

  • Irregular plots: AI-driven design adapts layouts to awkward geometries, unlocking the full potential of every square metre
  • Tight access: Site constraints are embedded into the design process. If access is limited, due to narrow archways or constrained courtyards, components are sized accordingly
  • Architectural freedom: Curved, irregular, or unconventional forms are fabricated robotically with the same efficiency as simple geometries
  • Infill and redevelopment: Customised structural systems allow varied heights, optimised spans, and efficient massing within complex urban contexts
All3 makes it possible to produce unique buildings for any plot, any scale, any design

Explore what’s possible on your plot

If you have complex urban sites where traditional methods impose design compromises or cost premiums, let's discuss how All3's integrated approach can deliver custom buildings at industrial economics.