EN1: Reporting Level & Data Availability

Assessment Instructions

Participants must report this metric at the asset level.

GRESB automatically populates this indicator in the assessment response once participants have aggregated asset-level data from the Asset Portal.

When using the Asset Spreadsheet to upload asset-level data, GRESB recommends reviewing the instructions below in conjunction with the corresponding spreadsheet tab. The Cell Code column in the Input section indicates where to report each metric in the spreadsheet.

Asset Portal Guide Click here to download a read-only version of the Asset Spreadsheet.

Reporting Level

Data Availability

Whole building

TRUE/FALSE

Base Building (m²/sq ft)

Common Areas

Shared Services

Tenant Space (m²/sq ft)

Total

Landlord controlled

Tenant Controlled

From (in reporting year) Date

To (in reporting year) Date

Input: How do I complete this metric?

Data

Cell Code

Instructions

Reporting Level

E4-J4

This section applies only if column E (Whole Building is Tenant Controlled) in the <Reporting Characteristics> section is set to "FALSE."

In this case, participants can report their energy data at the Whole Building: Landlord Controlled level, or at the Base Building + Tenant Spaces level.

Whole Building

Participants should only report at the Whole Building level if the breakdown of energy data between Base Building and Tenant Spaces is unknown.

In other words, select 'TRUE' when tenants and base building services use energy in both lettable/leasable and common spaces, but the consumption data is not available/metered separately. If "Whole Building" = TRUE in column E, data is not required for Base Building and Tenant Spaces.

In this case, participants can ignore columns F to J (floor area breakdown is not required since energy performance data will be reported at the Whole Building level) and move on straight to Columns M - U.

If "Whole Building" = FALSE in column E, complete the fields for Base Building and Tenant Spaces (columns F-J and columns V-BE).

Base Building & Tenant Spaces

F5-J5

Participants should report at the Base Building and Tenant Spaces level if the breakdown of energy data between Base Building and Tenant Spaces is known. If "Whole Building" = FALSE in column E, complete the fields for Base Building and Tenant Spaces (columns F-J) and V-BE to identify which tenant spaces are landlord or tenant-controlled.

See definitions of each space and control type below:

Base Building: Energy is supplied by central building services to common areas and possibly to lettable/leasable areas.
- Common Area: Areas shared with other building occupants, including entrance areas, corridors, lifts, staircases, waste storage stores, communal kitchen, breakout facilities, etc.
- Shared Services: Shared Services is a central source providing energy for the whole building, including common areas and shared services for tenants. If consumption cannot be separated between common areas and tenant spaces, provide both here.
Tenant Space: The lettable floor area, both the vacant and let/leased areas.
- Landlord Controlled: areas where the landlord (or both the landlord and tenant jointly) has the authority to introduce and implement any operating and/or environmental policies/measures.
- Tenant Controlled: areas where only the tenant is determined to have operational control.

Total

Specify the Landlord-Controlled and Tenant-Controlled floor areas to account for different energy consumption types (fuel, district heating & cooling, and electricity) in each space. A floor area classified as Landlord Controlled for one energy type may not necessarily be classified the same for another energy type. Therefore, Tenant Space – Total does not need to equal the sum of Landlord Controlled (column I) and Tenant Controlled (column J).

However, neither column I nor column J can exceed the Total value.

Data Availability *Mandatory

K4-L4

Indicate the period for which consumption data was collected.

For example, if data is available only for the last six months of a calendar year (January–December), the data availability columns should reflect July–December and follow the day/month/year format. Ensure that all performance data aligns with the reporting year specified in indicator EC4 (Reporting year).

Data Availability might differ from the Ownership Period (Reporting Characteristics) in the following cases:

If participants collected data for a shorter timeframe than their asset ownership period, Data Availability will reflect only a subset of the Data Ownership period.
If participants have obtained data from before the asset's purchase date, Data Availability will reflect a longer period than Data Ownership.

Guidance for unit consolidation - applicable to Residential Portfolios

The values entered in the Data Availability fields must accurately represent and align with the reported performance data. If the consolidation of multiple units creates an inconsistency between the period of data availability and the performance data reported, units must be reported separately.

*Note: Data availability is only mandatory when the consumption and floor area covered are known.

Validation: What evidence is required?

This indicator is subject to automatic validation. No evidence is required. Refer to the page below for guidance on how to resolve automatic validation errors and warnings. Validation Basics

Scoring

Reporting level and data availability influence data coverage (8.5 points total) and energy performance (2.5 points total) score calculation.

Data Coverage: Data availability must match an asset's ownership period for it to earn complete data coverage (time).
Energy Performance (Efficiency & like-for-like): Data availability must span the complete year for an asset to meet energy performance eligibility criteria.
- Like-for-like: Reporting level must be consistent across the current and previous reporting years for an asset to meet LFL eligibility criteria.

Frequently Asked Questions

Does changing my reporting level from year-to-year (e.g., Whole Building in the previous reporting year and Base Building + Tenant Space Level in the current reporting year) affect the asset's like-for-like eligibility?

Yes. Assets must report data at the same reporting level (i.e., Whole Building or Base Building + Tenant Space) for the current and previous reporting years to be included in like-for-like calculations.

If you would like to change the reporting level for an asset without disrupting its like-for-like eligibility, make sure to update the reporting level for both years.

Get Support: Solution Providers

GRESB Solution Providers are independent, third-party organizations within the GRESB Partner network that offer specialized products, tools, and services to support sustainability performance outside the GRESB Assessment process.

The organizations below deliver commercially available solutions designed to help drive improvement for this indicator. Engagement is managed directly between the reporting entity and the Solution Provider.

GRESB will continue to update this section as the GRESB Solution Provider network grows. Please check back regularly to find GRESB Solution Providers who can support your sustainability performance.

See Directory Profile

Last updated 9 days ago

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