A modern, high-level conceptual site design model highlighting dynamic terrain grading and site feasibility layouts in OpenSite+.

OpenSite+

AI-powered site planning and design software  

BENEFITS

Design smarter site plans

Lay out, adjust, and test site designs early to evaluate tradeoffs and reduce rework before decisions are locked in.
The collaborative OpenSite+ interface showcasing cloud-based site planning, automatic design iterations, and rapid cost estimation analysis.

  • Faster iteration, less rework

    Iterate site designs faster with fewer errors, reduce rework as layouts change, and deliver more consistent, buildable designs. 

  • Lower earthworks costs

    Understand grading impacts early to reduce unnecessary cut and fill, minimize risk, and avoid costly surprises that drive late-stage design changes. 

  • Quicker answers, less manual work

    Get faster access to key design information, respond to stakeholder questions sooner, and spend more time focused on design. 

PRICING OPTIONS

Exclusive pricing options

OpenSite+

AI-powered civil engineering application purpose-built for site design and land development.

  • Automate tedious tasks like annotations, labeling, and grading optimization
  • Evaluate thousands of grading scenarios in minutes for best-value construction
  • Handle layout, drainage design, and documentation seamlessly on a single platform

More details

Site layout with smart objects 

  • Smart, parametric site objects with embedded properties and constraints 
  • Automatically update grading as designs change 
  • Support interaction between site elements as design layouts evolve 

Earthworks optimization  

  • One-click tool evaluates thousands of grading scenarios within project constraints  
  • Precise cut and fill analysis updates in real time as designs change  
  • Data-driven earthworks decisions integrated into everyday grading workflows 

Bentley Copilot 

  • Use natural language or voice-activated commands to ask questions and execute tasks 
  • Receive evidence-based answers from existing site designs and project documentation 
  • Instant suggestions to complex problems with real-time design optimization 

Integrated drainage design and analysis 

  • Built-in stormwater design and hydraulic analysis using OpenFlows technology 
  • Drainage design and analysis performed directly inside the site design environment 
  • Reduce tool switching and data loss with a unified workflow 

To run OpenSite+, the following minimum, recommended and enterprise edition system specifications are outlined below:

  • The Minimum/base specification accommodates a small industrial/commercial project with several thousand tasks, and some 3D information. 
  • The recommended/intermediate specification accommodates a medium mixed development project with detailed 3D information. 
  • The enterprise/advanced specification ensures scalability and performance for the largest projects, and highly detailed 3D information.

Processor: 

  • Minimum/base systems: Intel Core i5 CPU, 2.3 GHz 
  • Recommended/intermediate systems: Intel Core i7 CPU, 3 Ghz or greater base clock, 8 cores/16 threads
  • Enterprise/advanced systems: Intel Core i9 3 Ghz or greater, 8 cores / 16 threads or greater

Intel® or AMD® processor

Only 64-bit (x64) processors are supported and require support for SSE2.

Memory (RAM) 

  • Minimum/base systems: 16GB, 2666MHz DDR4 
  • Recommended/intermediate systems: 32GB, 3200MHz DDR4 
  • Enterprise/advanced systems: 64 GB or greater, 6000MHz DDR5 

Hard disk space: 

  • 1 GB for installation files 
  • 500 MB for each local project files (typical un-synced briefcase data) 

SSD is the expected disk type, preferably with NVMe. 

Graphics card: 

  • Minimum/base systems: 4 GB 
  • Recommended/intermediate systems: 8 GB 
  • Enterprise/advanced systems: 16 GB 

OpenSite+ uses advanced 3D graphics rendering techniques to produce interactive designs. Performance is application dependent and will benefit from a discrete GPU. NVIDIA CUDA support is expected. 

Display: 

  • Minimum/base systems: 1920 x 1080 (Full HD) 
  • Recommended/intermediate systems: 2560 x 1080 (2K) 
  • Enterprise/advanced systems: 3840x2160 (4K) 

Multiple monitors and Ultrawide monitors are supported.

Operating system: 

  • Windows 11 (64-bit)/ Windows 11 (25H2) or later - Home, Pro, Enterprise, and Education 

Only 64-bit (x64) operating systems are supported Bentley does not support its software running on Microsoft operating systems versions that Microsoft has "retired". For more information see Microsoft's application retirement policy and the Bentley Application Support Lifecycle.

Others: 

  • Network connectivity 
  • Mouse with scroll wheel 

Network connectivity is required for License activation, Bentley Copilot and project hosting in Bentley Infrastructure Cloud. 

USER STORIES

Real stories. Real results.

How VHB sees the future of site design

VHB examines how OpenSite+ brings together grading, drainage, and earthworks to support more connected, model-based site design workflows.

Four people stand and talk around a tall desk in a modern office with cubicles and large windows. A poster with a phone is visible on the left, highlighting the latest site design solutions like Bentley OpenSite+.

Insights from Pennoni on AI-driven site design

Pennoni explores how OpenSite+ can help advance how site engineers approach design, analysis, and delivery.

A digital map in OpenSite+ displays building outlines, roads, contour lines with elevation markers, and floodplain data—ideal for site design and analysis by firms like Pennoni.

FAQS

Find answers

OpenSite+ is a next generation site design solution based on a new AI enabled platform that natively uses iModels with Bentley Infrastructure Cloud. It provides new and improved workflows over the legacy products with a new user experience for site design. 

Site design software helps professionals plan, engineer, and permit land development projects, such as residential subdivisions, commercial sites (retail, offices, warehouses), site roads and parking lots, and utilities and drainage systems. 

OpenSite+ provides multiple levels of AI Agent integration to increase design productivity. For example, Bentley Copilot allows indexing of project documentation and interaction with the design and optimizations are incorporated throughout the product to assist in automating manual processes and evaluation of multiple options.

Bentley uses Microsoft Azure to host and deliver the cloud services that power its AI‑enabled features. For OpenSite+, AI services are currently supported through U.S.-hosted Azure data centers.

No, Bentley does allow users to opt-in to share their data for the purpose of developing and/or improving our AI offerings. However, this requires users to affirmatively opt-in to sharing their data for this purpose.

OpenSite+ is available through Bentley’s Infrastructure Cloud where accounts select their preferred Bentley supported data center location and/or region. Currently, the use of OpenSite+ AI features requires data to be transferred and/or stored in the US (East US Region). Bentley plans on expanding the data localization options available for accounts and users utilizing the OpenSite+ AI features in advance of its general release.

OpenSite+ introduces smart objects with a model first approach. These site-specific smart objects define constraints that help to guide the optimization of the model and produce quantity takeoffs as part of the model directly. The smart model objects are the input, and the cad lines are the output reversing traditional cad software workflow. 

RESOURCES

Your hub for all things OpenSite+

Build your OpenSite+ expertise with free, on-demand webinars, community forums, technical documentation, and more.