Price confidently
Build rates, analyse resources and price bills of quantities in one structured estimating workspace.
Construction software for clearer decisions
From intent
to outcome.
Price construction work in b4 today. As Site Project grows, measured scope, estimates and commercial decisions stay connected across the project lifecycle.
b4 is available now · Takeoff and Margin are in development
01 / Price work with context02 / Control every revision03 / Connect only when needed
01What changes
Less reconstruction.
More useful work.
Construction teams lose time when quantities, assumptions and decisions are stripped from their source. Site Project keeps the working context visible.
Review every change
Keep source, owner, version and status visible so a revision prompts review instead of silently replacing work.
Work across boundaries
Share a deliberate publication—not an entire private workspace—when another organisation needs the result.
02Available today
b4 · Available now
Construction estimating that respects the detail.
Build a traceable estimate from quantities through resources and rate analysis. Navigate large bills quickly, work directly in the schedule and retain the reasoning behind the price.
- Structured bills and workbooks
- Resource and rate analysis
- Import, export and revision control
Item / DescriptionUnitQuantityRateAmount
2.1Prepare surfacem²1,240.0042.5052,700
2.2Porcelain tile finishm²1,186.00685.20812,647
2.3Skirting, 100mmm438.00126.4055,363
2.4Movement jointsm96.00284.0027,264
SECTION TOTALR 947,974
03The product direction
Focused instruments.
A connected project.
Each product is designed to complete a useful job on its own. Connections remain deliberate, versioned and visible.
b4
Build detailed construction estimates with structured bills, resources and rate analysis.
Open productTakeoff
Turn drawings and models into reviewed, versioned quantities ready for downstream work.
Product updates will be shared as development progresses.Margin
Carry accepted work into forecasting, change management and commercial control.
Product updates will be shared as development progresses.Product status is stated plainly. Future direction is not presented as shipped capability.
04Across the lifecycle
The work is not linear.
The thread should be.
Activities overlap, repeat and vary by procurement route. The lifecycle is a shared orientation—not a prescribed workflow.
01Define
02Design
03Plan
04Price
05Procure
06Build
07Verify
08Operate
Feedback, revision and learning
05Why Site Project
Construction is the coordinated creation of lasting value.
Every project brings a temporary network of independent organisations together around a shared intent. No single participant controls the whole.
Site Project creates focused working instruments, then preserves context as decisions cross disciplines, contracts and organisational boundaries.
Private by default
Your organisation controls its operational records and chooses what to publish.
Clear when issued
Published information keeps its owner, version, status and source.
Connected by choice
Products exchange defined records without pretending the whole project belongs to one system.
06Trust through clarity
We will show the work, not manufacture proof.
Site Project is an emerging product suite. b4 is available today; the wider connected workflow is being built in stages. We do not invent customer counts, project telemetry or endorsements.
- Available
- b4 construction estimating
- In development
- Takeoff and Margin
- Product principle
- Private records, explicit exchange
- Access
- Web-based products and organisation sign-in
Start with a working product
Price the work.
Keep the context.
Open b4 and explore Site Project’s first focused instrument for construction.
Open b4