Tendered budget (v1)

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This contract has been superseded. See the current version (v2).

Tendered budget is one of Demiton's published registers for Australian civil construction. Tendered budget lines across all cost categories, from the winning estimate. Demiton keeps it current from the systems a contractor already runs and publishes the record's shape as a versioned JSON Schema, so the same question works whichever system produced the record.

Part of Opportunities in the register catalog.

Register ID

tendered_budgetUse this name to ask for the register. The API calls it a shelf ID.

Each record is

A stateThe current value of something, replaced when it changes.

Status

AvailableFilled today from connected systems, uploads or public data.

Data

OrganisationPrivate to each organisation's own workspace.

Version

v1 (1.0.0)Superseded by v2.

Download JSON SchemaSee an example record

Connectors

Connected today

Demiton keeps this register current from these systems now.

No system fills this register yet.

On the roadmap

Systems in the planned connector rollout that can fill this register. Partial means the system holds only some of its fields.

None planned yet.

Fields

12 fields: 9 required, 3 optional.

Required

Every record carries these fields.

categoryText

The cost category a section total belongs to.

Example: Labour

coverageTextUnit: labour_only \

empty)

Example: full

sectionsListUnit: AUD (per section)

The cost-category breakdown (Labour, Plant, Subcontract, Travel, Materials, Overhead on a full parse), one entry per category: category label, section total, line count, and the nested line list.

entity_idWhole number

The entity the price belongs to. Always an opportunity for this shelf: doc_entity_type='opportunity' (baseline_squash_02_seed.sql:274), resolved by resolve_anchor_entity preferring opportunity at tender stage, and the writer skips the write entirely when resolution returns None.

Example: 7001

total_audNumberUnit: AUD

The section subtotal; grand_total_aud must equal their sum.

line_countWhole numberUnit: count

How many nested lines the section carries, so a truncated parse is detectable.

Example: 22

source_formatText

Which parser format produced the record, so a consumer can tell a Pronamics workbook from a future parser's output.

Example: pronamics_workbook

grand_total_audNumberUnit: AUD

The whole tendered sum: the sum of every section's total.

financial_periodDateYYYY-MM-DD

The period the budget belongs to, so successive periods coexist instead of superseding one another.

Example: 2026-06-01

Optional

Present when the source system records them.

lines[]ListUnit: mixed (each line carries its own unit)

The priced line detail: what was priced, how much, in what unit, at what rate, for what total, and the work-activity / cost-type coding where the workbook carries it.

budget_hoursNumberUnit: hours

Total labour hours behind the labour portion, for rate-per-hour and productivity checks.

Example: 8200

labour_total_valueNumberUnit: AUD

The Labour section's subtotal, kept for labour-only consumers.

Example: 480000

Example record

A sample from Bridgeworks Group, Demiton's demonstration company. The values are illustrative; the shape is exactly what the contract describes.

tendered_budget.example.json

{
  "budget_hours": 8200,
  "category": "Labour",
  "coverage": "full",
  "currency": "AUD",
  "entity_id": 7001,
  "financial_period": "2026-06-01",
  "grand_total": 2650000,
  "labour_total_value": 480000,
  "line_count": 22,
  "sections": [
    {
      "category": "Labour",
      "line_count": 22,
      "total": 480000
    },
    {
      "category": "Plant",
      "line_count": 14,
      "total": 610000
    },
    {
      "category": "Subcontract",
      "line_count": 9,
      "total": 950000
    },
    {
      "category": "Materials",
      "line_count": 18,
      "total": 410000
    },
    {
      "category": "Overhead",
      "line_count": 3,
      "total": 200000
    }
  ],
  "source_format": "pronamics_workbook",
  "total": 480000
}

Version history

• v2 (current)
• v1

Use this contract

The contract is a standard JSON Schema (draft 2020-12) document, so any JSON Schema validator can check a record against it. Keywords starting with x-demiton- add Demiton's own meaning, such as units and requiredness, and validators ignore them.

Schema URL

https://docs.demiton.io/registers/tendered_budget/v1.json

Show the full JSON Schema

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