Share of building-project material inputs reused, repurposed or remanufactured
Measurement answer
What this metric measures
Percentage of total mass of inputs used in building new-build, refurbishment and fit-out activities that are reused, repurposed or remanufactured.
Specification
Metric specification
- Result format
- Single value
- Unit
- % — source-defined reporting unit
- Reporting basis
- Reporting period
- Aggregation
- Total mass of qualifying reused, repurposed or remanufactured materials, products, components and systems used in new build, refurbishment or fit-out, divided by total mass of all materials, products, components and systems used in those activities.
- Pillar
- Environmental
- Topic
- Circular economy
- Controlled domain
- Materials, circularity and waste
- Entity type
- Metric
Reporting boundary
Materials, products, components and systems used in the reporting entity's new-build, refurbishment and fit-out activities during the reporting period; qualifying inputs may originate from the subject building, other buildings or third parties.
Verified source occurrences
Framework coverage
This is one canonical metric. The bindings below show every verified framework occurrence without creating duplicate metric pages. Edition, disclosure, role, and relationship remain source-specific.
- Adopting DisclosureSource evidence
TNFD sector guidance
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Final English sector guidance collection through August 2026 (17 documents)
- Requirement
- Not Specified
- Relationship
- Defines Disclosure
- Mapping outcome
- Direct Evidence
- Source locator
- Page 81, metric table, Response—Dependency, impact and opportunity management: Changes to nature (dependency and impact): mitigation hierarchy steps
- Adopting DisclosureRE.A23.0
TNFD sector guidance
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Version 1.0, January 2025
- Requirement
- Recommended
- Relationship
- Maps Source Identity
- Mapping outcome
- Published
- Source locator
- Page 81, metric table, Response—Dependency, impact and opportunity management: Changes to nature (dependency and impact): mitigation hierarchy steps
Value structure
Dimensions and units
- Unit
- % — source-defined reporting unit
- Reporting basis
- Reporting period
Unit meaning: Values use % under the disclosed TNFD sector-guidance method, reporting period and boundary.
Published dimensions
- Activity type: new build, refurbishment or fit-out
- Input category: material, product, component or system
- Source of qualifying circular input: subject building, other building or third party
Calculation method
Formula information
- Status
- Specified
- Formula type
- Percentage
Formula
(M_qualifying / M_total) × 100Apply the source-defined TNFD sector-guidance method within the stated reporting boundary. The source specifies a separately reportable mass-share outcome, including a clear numerator population, denominator population and applicable activity boundary. It is not the same construct as the shortlist's general circular material use rate because this metric is specifically limited to building new-build, refurbishment and fit-out inputs and explicitly includes reused, repurposed and remanufactured materials, products, components and systems.
Variables
| Symbol | Variable | Definition | Unit |
|---|---|---|---|
M_qualifying | Mass of qualifying circular inputs | Total mass of materials, products, components and systems used in new build, refurbishment or fit-out that have been reused, repurposed or remanufactured. | mass unit used consistently for numerator and denominator |
M_total | Total mass of material inputs | Total mass of all materials, products, components and systems used in the included new-build, refurbishment and fit-out activities. | mass unit used consistently for numerator and denominator |
Verified sources
Evidence and status sources
Sustopedia checked each record-specific claim directly against primary publisher material. Labels distinguish current measurement authority from future compatibility and corroborative, legal, edition, or method status context. Corroborative evidence can support a stated limitation but cannot establish the core measurement by itself.
Measurement evidence
- Measurement evidenceChecked 30 August 2026
TNFD additional sector guidance collection
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Final English sector guidance collection through August 2026 (17 documents)
- Locator
- Page 81, metric table, Response—Dependency, impact and opportunity management: Changes to nature (dependency and impact): mitigation hierarchy steps
Supports: The official TNFD sector guidance supports the identity, boundary and method basis of “Share of building-project material inputs reused, repurposed or remanufactured”.
Open official source
Use with context
Interpretation boundaries
Method disclosures required
Source-edition basis: TNFD sector guidance, Final English sector guidance collection through August 2026 (17 documents).
- Define the organizational, project and activity boundary, including which new-build, refurbishment and fit-out activities are included.
- Disclose whether total mass is measured, estimated or derived from procurement records and describe treatment of incomplete mass data.
- Define the criteria used to classify an input as reused, repurposed or remanufactured.
- Disclose the source classification for qualifying inputs: subject building, other buildings or third parties.
- State whether mass includes packaging, ancillary materials, temporary works or other non-building inputs.
- Retain TNFD source attribution and the applicable sector-guide metric-table locator.
Record-specific limitations
- The metric is mass-based and may not represent differences in durability, quality, environmental impact or retained functional value among inputs.
- Comparability depends on consistent inclusion of project activities and consistent mass-estimation methods for materials, products, components and systems.
- The source description does not prescribe a specific lifecycle stage beyond use in new-build, refurbishment or fit-out activities.
Interpret this metric with the stated reporting boundary, period convention, value shape, and unit. Results prepared with different boundaries or conventions may not be directly comparable.
Measurement evidence supports the core record-specific claims described above. Corroborative evidence can support limitations, while compatibility and status sources provide their separately labelled context. None of these cards by itself determines an organisation's legal applicability, filing readiness, assurance status, or compliance conclusion.