UKNC: Residential (HQM) / HQM ONE / B My Home / 6 Materials /

6.3 Life Cycle Costing

Information correct as of 26thFebruary 2026. Please see kb.breeam.com for the latest compliance information.

01 Occupant’s life cycle cost report: crit 2 - KBCN1656

Crit 2 currently says: An Occupant's report, based on the most up-to-date LCC analysis (see crit 1), is available to potential occupants prior to a commitment to purchase. However Crit 2 should say: An Occupant's report, based on the most up-to-date LCC analysis (see crit 1), is available to potential owner prior to a commitment to purchase. This will  be corrected in the next reissue of the technical manual.

Accuracy of life cycle cost projections - KBCN1295

The aim of LCC credits is to encourage homebuilders into identifying enhanced and value-added design and specification to improve the overall quality of the building stock. The design appraisals can help improve upon the design and specification selection should initial projections be too high. HQM LCC credits are not intended to be used for comparison between developments, given the differences in assumptions made in each appraisal. With the introduction of this credit into the HQM, it is expected that projections on durability of elements/ components and forecast for maintenance and operation will improve industry knowledge. This will also encourage transparency in the industry and this credit aims to encourage knowledge-transfer of best practice.

Homeowner’s life cycle cost report - KBCN1286

The life cycle cost analysis and lifecycle assessment can be undertaken per house type. A house type includes homes that are identical in specification, design and location (end/ mid-terrace, ground or mid/ top floor). Any home that does not meet this definition for house type will need to be modelled separately.

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:
  1. 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.
  2. 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.
  3. Is not professionally connected to a single manufacturer
A CV should be provided demonstrating their experience and knowledge against the above requirements.  
Information correct as of 26thFebruary 2026. Please see kb.breeam.com for the latest compliance information.