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The leading construction specification platform

Create, manage and collaborate on construction specifications in one cloud-based platform.

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3,400+

Practices using NBS

92%

AJ Top 100 Architects using NBS

70%

Time saved writing spaces

30k +

Manufacturer products

See what NBS Chorus can do

NBS Chorus helps teams write and manage their own specifications more efficiently

Structured clauses

Write specifications using structured clauses aligned to recognised industry standards, helping teams improve consistency, reduce errors and create clearer project information.

Full scope of contents
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Model integration

Develop your model and specification together, helping teams improve coordination between design information, specification content and project documentation.

Download the plugin
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Reduced specification risk

Access in-spec guidance and high-quality in-spec manufacturer information from NBS Source, helping teams make more accurate decisions and reduce risk across projects.

Sample Specification
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Sustainable specification

Specify products from NBS Source with clear sustainability credentials, make more informed product choices and export sustainability reports from your specification.

Discover NBS Source
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Why NBS Chorus

Choose the right content

Select content sets for different disciplines and project types, helping teams create more relevant specifications from the start.

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Build reusable masters

Create master specifications using commonly used clauses tailored to your organisation and clients, helping teams start new projects faster and maintain consistency.

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Record key decisions

Add specification notes to capture decisions as the specification develops, from parked clauses to design preferences and essential health and safety requirements.

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Stay aligned with changing content

Receive update notifications when NBS content changes, helping teams keep specifications aligned with the latest available guidance and reduce outdated information.

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Plans and features

Choose the NBS Chorus plan that best fits the way your team works, from essential specification tools to advanced collaboration, control and consistency across projects.

  • Core

    Essential features for high quality specifications

    This tier includes

    • Keep your specification accurate with high-quality content maintained by NBS

    • Develop your design model and specification simultaneously

    • Write specifications with colleagues in real time, in the cloud

    • Access manufacturer product information through integration with NBS Source

  • Most popular

    Pro

    Smarter collaboration features for streamlined project workflows

    Everything in Core, plus:

    • Build a library of ‘Master’ specifications tailored to your projects

    • Create clear audit trails with ‘Specification notes’ and revision tracking

    • Invite and collaborate with external users

    • Create customised specification templates for your brand and style

  • Premium

    Advanced features to master how you produce specifications

    Everything in Pro, plus

    • Support the golden thread with ‘Detailed revision’ tracking

    • Use ‘Variables’ to define and quickly edit repeated phrases

    • Keep teams informed with notifications for changes to master specifications

    • Define project or master access permissions for groups of colleagues

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Trusted by leading practices

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Our packages

Like the look of NBS Chorus, but don't need a full subscription? We've got you covered...

Designer

An NBS Chorus offering created specifically for organisations who want to coordinate the design model with the specification but don’t need all users to edit or write specification content.

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Small works

NBS Chorus for Small Works is a package created specifically for architects, engineers and designers who write specifications for smaller works and projects.

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Preliminaries

A version of NBS Chorus for Quantity Surveyors and Project Managers who want to use the powerful features of Chorus, but don’t need access to all the specification content libraries.

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Early-stage specification

An NBS Chorus content library for construction professionals who need to develop outline specifications from the earliest stages of design. It includes pre-written multidisciplinary clauses, example inserts and guidance to support concept design.

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Domestic

An affordable, tailored package to help you specify small domestic projects with confidence, accuracy and efficiency.

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Students and teachers

A version of NBS Chorus created to support the next generation of designers, architects, and engineers to refine their specification writing skills, and prepare for their future careers.

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Schedules

Use NBS Chorus to create client, planning and regulatory reports – all generated from the same shared dataset as your specification.

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Frequently asked questions

NBS Chorus is a cloud-based construction specification platform. It enables architects, engineers and other construction professionals to create, manage, collaborate on and publish project specifications online.

Book a demo

Discover how NBS Chorus can help your team create better specifications, collaborate more effectively and keep project information connected.