Best AECOsim Building Designer Alternatives ranked by AI · updated Aug 2026

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OpenBuildings Designer is Bentley's multidisciplinary BIM application for architects, engineers, and building-system designers; it was formerly known as AECOsim Building Designer. It supports coordinated architectural, structural, mechanical, electrical, and plumbing design with detailed building models and documentation.

Developer: Bentley Systems Price: Contact Bentley for pricing 🎯 bentley.com/en/products/brands/openbuildings

BIM 🏛️ Architecture MEP building design parametric design

Top 6 AECOsim Building Designer alternatives

Revit

Autodesk

💡 Pick Revit for the largest BIM ecosystem, broader hiring pool, and mature multidisciplinary coordination.

Revit is a multidisciplinary BIM platform for architects, structural engineers, MEP engineers, and contractors. Its standout capability is coordinated parametric building modeling...

Pros

Broader international adoption and consultant compatibility than ArCADia BIM
Strong parametric coordination across architecture, structure, and MEP
Extensive add-on, training, and cloud collaboration ecosystem

Cons

Much higher subscription cost than many standalone CAD tools
Steeper learning curve for small practices and occasional users
Windows-focused desktop workflow with substantial hardware requirements

From $3,005/year

Alternatives to Revit → Visit site

ArchiCAD

💡 Pick Archicad for an architecture-first BIM workflow with strong documentation and a gentler learning curve.

ArchiCAD is a BIM software for architects and designers to create detailed architectural designs and documentation.

Paid

Alternatives to ArchiCAD → Visit site

Vectorworks Architect

Vectorworks

💡 Pick Vectorworks Architect if you want flexible drafting, freeform modeling, and BIM in a design-oriented package.

Vectorworks Architect is a BIM and CAD application for architects and design practices. It combines flexible 2D drafting, freeform modeling, parametric building...

Pros

More flexible for hybrid 2D, 3D, and conceptual design than many BIM tools
Strong site, landscape, presentation, and visualization capabilities
Available on both Windows and macOS

Cons

Less standardized for large multidisciplinary teams than Revit
Complex project setup can require more manual workflow management
Performance and feature depth vary across specialized modules

N/A

Alternatives to Vectorworks Archit... → Visit site

Allplan

ALLPLAN

💡 Pick Allplan for construction-focused BIM, reinforced-concrete detailing, and fabrication-oriented documentation.

Allplan is a BIM platform for architects, structural engineers, contractors, and infrastructure professionals. It combines building and civil design, detailed modeling, engineering...

Pros

Strong detailing and structural construction workflows
Better suited than many architecture-only tools to complex concrete and infrastructure projects
Supports integrated design-to-construction processes

Cons

Smaller user community and third-party ecosystem than Revit
Can be more complex to configure than lightweight CAD/BIM products
Pricing and modules are less transparent in many markets

N/A

Alternatives to Allplan → Visit site

BricsCAD BIM

Bricsys

💡 Pick BricsCAD BIM if your team is DWG-centric and wants a more direct-modeling route into BIM.

BricsCAD BIM is a DWG-based BIM application for architects, engineers, and contractors who want building modeling alongside conventional CAD. Its standout capability...