01 - Management - BREEAM Knowledge Base

Capital cost reporting and LCC measured area - KBCN0438

When assessing the Capital cost reporting and the LCC credits, the area to be considered should be the Gross Internal Floor Area (GIFA), according to the below RICS definition: Gross Internal Floor Area Gross Internal Floor Area is the area of a building measured to the internal face of the perimeter walls at each floor level, which includes:

Areas occupied by internal walls and partitions
Columns, piers chimney breasts, stairwells, lift-wells, other internal projections, vertical ducts, and the like
Atria and entrance halls with clear height above, measured at base level only
Internal open sided balconies, walkways, and the like
Structural, raked or stepped floors are treated as a level floor measured horizontally
Horizontal floors with permanent access below structural, raked or stepped floors
Corridors of a permanent essential nature (e.g. fire corridors, smoke lobbies, etc.)
Areas in the roof space intended for use with permanent access (BCIS)
Mezzanine areas intended for use with permanent access
Lift rooms, plant rooms, fuel stores, tank rooms which are housed in a covered structure of a permanent nature, whether or not above main roof level
Service accommodation such as toilets, toilet lobbies, bathrooms, showers, changing rooms, cleaners’ rooms and the like
Projection rooms
Voids over stairwells and lift shafts on upper floors
Loading bays
Areas with a headroom of less than 1.5m
Pavement vaults
Garages
Conservatories (BCIS)

And excludes:

Perimeter wall thickness and external projections
External open-sided balconies, covered ways and fire escapes
Canopies
Voids over or under structural, raked or stepped floors
Greenhouses, garden stores, fuel stores and the like in residential property
Open ground floors and the like (BCIS)

14.02.18 - KBCN content amended to extend the applicability to LCC and to refer to GIFA rather than GEA, to reflect current industry practice.

Changes to CCS – May 2026 – For BREEAM V7 - KBCN1873

In response to the 2026 update to the Considerate Constructors Scheme (CCS), the equivalent CCS score requirements for achieving credits are set out in the orange columns of the table below. Credits will be awarded based on the site’s average performance across all visits, as reported on the final certificate. Where a project has received site inspections under both the previous and updated versions of the CCS scheme, the higher score may be used to determine credit achievement. For example, where a project achieved an Excellent rating under the 2022 CCS scheme but a Very Good rating under the 2026 CCS scheme, the higher (Excellent) rating can be used. This approach ensures that projects are not disadvantaged during the transition between CCS versions. Whilst the platform is being updated to include the new CCS percentage scores within the question drop-downs, please select the equivalent CCS 2022 Scheme score to award credits.

Considerate Constructors Scheme – International projects - KBCN1451

Where the Considerate Constructors Scheme is available outside the UK, this can can be considered as a 'BREEAM compliant' scheme for the purposes of this Issue.

Elemental LCC and options appraisal timing - KBCN1889

The elemental LCC should be undertaken as part of the strategic options appraisal process and used to inform the selection of significant building elements and systems, such as the structure, envelope and building services. Completing the options appraisal after key design decisions have been finalised may reduce its effectiveness and limit the opportunity for the findings to influence the final design. However, the timing requirement can still be met, where the assessor agrees that there is a justification for the appraisal continuing into early RIBA Stage 3 (or equivalent), and clear evidence to demonstrate that:

The key options remained under consideration during the appraisal.
The findings were capable of influencing the final design solution.
The intended outcomes of the elemental LCC process have not been compromised.

In all cases, the outline elemental LCC plan and identification of relevant project options must be completed by the end of Concept Design

Erratum – Monitoring utility consumption – Meeting the set targets - KBCN1899

The target and actual total energy and water consumption figures must be entered into the platform. However, meeting the targets is not required for compliance. The relevant criteria will be clarified in the next reissue.

Evidence requirements – responsible sourcing of materials at post-construction - KBCN1599

Whilst the UK BREEAM manuals are less prescriptive in the evidential requirements to allow flexibility, to ensure consistency across the schemes, it is expected that robust evidence should be provided to verify the source of any certified materials and how the assessor has confirmed the products and manufacturers used. Evidence supplied at post construction stage must reflect the completed building and confirm the responsibly sourced materials that have been procured and installed on the project. Supporting documentation is required to validate letters of confirmation or schedules of materials. Evidence provided could include proof of purchase, for example, invoices, delivery tickets, purchase orders or correspondence from suppliers. This may be an example for each material sourced, rather than every delivery ticket for instance. Alternatively, evidence of the use of the responsibly sourced materials may include as-built drawings, O&M documentation or site photographs.

30-Oct-2025 - Applicable to HQM V6 and UKNCR V6.1

GN54 Responsible construction management – BREEAM V7 - KBCN1752

Latest version: v1.0, July 2026 Guidance Note 54 (GN54) provides information on achieving the responsible construction management requirements in Man 03 in BREEAM V7. It has two parts:

Part 1 lists the requirements that must be met to achieve credits for responsible construction management in BREEAM V7.
Part 2 provides a list of the schemes or tools that have been evaluated by BREEAM and can contribute to the achievement of one or more credits for responsible construction management.

This guidance note only applies to BREEAM V7. There is a separate guidance note for earlier versions of BREEAM UK NC and UKNCR (see Guidance Note 33). Download Guidance Note 54 View all Guidance Notes on BREEAM Projects (licensed assessors only)

15-Jul-2026 - Updated version released (v1.0)

LCC – Competent person or Suitably Qualified Cost Consultant (SQCC) - KBCN1803

The definition of a competent person, or SQCC as named within HQM or BREEAM New Construction Residential, has been updated to provide further clarification and is now defined as set out below: An individual achieving all the following items can be considered to be ‘suitably qualified’ for the purpose of completing the LCC credits:

Holds a recognised qualification for undertaking life cycle costing studies and/or a degree/postgraduate diploma or equivalent qualification in quantity surveying, construction economics or other construction-related subject.
Has acquired substantial expertise through a minimum of three years relevant experience (within the last five years). The experience must clearly demonstrate a practical understanding of life cycle costing in construction and the built environment and show an ability to identify and demonstrate cost and performance enhancement measures.
Is not professionally connected to a single manufacturer

A CV should be provided demonstrating their experience and knowledge against the above requirements. Note for Non-Domestic New Construction V7: The intention of the above is to provide clearer guidelines for assessors on who would be considered a suitable professional to carry out LCC option appraisals. For New Construction V7.0, flexibility may be applied, and the definition can be considered to be met where point 3 and either point 1 or 2 of the above is demonstrated. In addition, where it can be demonstrated that the LCC consultant was appointed prior to the release of KBCN1803 (18.10.2025), and that appointment was made based on the assessor’s professional judgement of what constitutes ‘recognised qualification’ and/or ‘substantial expertise’ at that time, similar flexibility may be applied. In such cases, sufficient justification and supporting evidence (e.g. CV and rationale for appointment) must be provided to demonstrate that the consultant was reasonably considered competent in line with the intent of the criteria at the time of appointment. The definition will be updated in the next release of the technical manual (V7.1); therefore, any assessments under New Construction V7.1 and subsequent versions will need to meet all three requirements, and no such flexibility will apply.

26 May 2026: Note added regarding application against NC V7.

Legally harvested and traded timber – Examples - KBCN0956

The following examples are considered compliant for BREEAM: Legally harvested:

Evidence of compliance with the UK government Timber Procurement Policy (see here, timber bought inside the UK only)
FSC, PEFC, SFI or GiB certification
Evidence of compliance with the EUTR (timber bought inside the EU only)
Risk assessment/due diligence documentation demonstrating a low risk of non-compliance with the ‘legally harvested’ requirements given in the manual.

Legally traded:

Evidence of compliance with the UK government Timber Procurement Policy (see here, timber bought inside the UK only)
FSC, PEFC, SFI or GiB certification
Risk assessment/due diligence documentation demonstrating a low risk of non-compliance with the ‘legally traded’ requirements given in the manual.

04-Dec-2025 - Examples updated to include Grown in Britain (GiB) certification. Previous reference to 'CPET' clarified as 'UK government Timber Procurement Policy'.
KBCN applied more widely to all relevant scheme issues in BREEAM and HQM

Meeting the minimum standard requirement – compliance when chain of custody is broken - KBCN1816

Where there is a broken chain in the last link between the purchase and delivery of certified timber from the supplier and the forwarding distribution of the timber to the site under assessment, such as where the timber has been delivered to a subcontractor or fabricator’s premises instead of direct to site (e.g. as part of a bulk order or where limited storage is available on site), compliance can still be achieved if a documented risk assessment confirms that there is low risk of mixing or substitution of certified and non-certified timber. Ways to demonstrate compliance: A. Verification that the subcontractor or fabricator only purchases and uses certified timber. There must be robust mechanisms in place to verify that all timber materials purchased and delivered originate from sustainably managed sources. This includes maintaining documented timber procurement policies and procedures that mandate certified timber orders and delivery checks. Comprehensive supplier details should be readily accessible for review upon request to demonstrate that all timber is certified. B. Where non-certified timber is handled/stored or sourced, that there are robust control measures in place to prevent any substitution or mixing of certified and non-certified timber at every stage of the process. Documentation demonstrating compliance should be maintained and made available upon request. Examples of appropriate control measures are listed below:

Control	Evidence required
Purchasing records	All purchase orders, requisition notes, and contracts must explicitly specify the product details and confirm that materials are to originate from legal and sustainable sources.
Segregated storage of timber	Site layout map, stock control processes and records to confirm that certified timber is stored away from non-certified timber.
Segregated delivery of timber to site	- All timber must be thoroughly inspected and verified before shipment to confirm that it is correctly marked/labelled as FSC/PEFC-certified. - Delivery notes must be accurately maintained. - A second-party verification process to check tickets and stock, must be carried out upon site delivery to confirm certified status of timber.
Documentation	Comprehensive documentation must enable independent assessors to trace any timber back to its sustainable source. This includes maintaining purchase records, goods-inward notices, stock records, and sales documentation such as orders and invoices.

The above is guidance and should not replace any local or national requirements for the sourcing of legally traded and harvested timber.

1 June 2026 - Updated to apply to New Construction and RFO Schemes

Submitting aftercare & post occupancy evaluation data - KBCN0589

Where credits have been awarded which require post-occupancy evaluation or an element of aftercare data collection (according to scheme requirements) from the building once operational and occupied, the data gathering must take place at the specified time and the findings reported to BRE. The timing of this evidence gathering depends on the criteria of the specific BREEAM scheme. However, for all schemes, once the evidence is due for submission, it should be sent on the assessor webform with the following subject; 'BREEAM Assessment Type - Building Data - BREEAM Assessment Reference' For example: 'BREEAM NC 2018 - Building Data - BREEAM-1234-5678'

29-Oct-2025 - Applicable to HQM One, HQM V6 and UKNCR V6.1
05 Nov 2024 - Wording clarified and link to the webform added
This replaces KBCN0695 for HQM.

New Construction / International / V7 /

01 - Management