Principal works in the construction industry
According to approved document L of the building regulations, the term 'principal works' means:
...the work necessary to achieve the client's purposes in extending the building and/or increasing the installed capacity of any fixed building services. The value of the principal works is the basis for determining a reasonable provision of consequential improvements. |
Where, fixed building services are internal or external lighting systems (not emergency escape lighting or specialist process lighting), fixed systems for heating, domestic hot water, air conditioning or mechanical ventilation, or any combination of those systems.
And, consequential improvements are efficiency improvements consequential to changes to a building, required by regulation 28 of the Building Regulations to make the whole building comply with Part L of the Building Regulations.
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
Net zero electricity grids BSRIA guide NZG 5/2024
Outlining the changes needed to transition to net zero.
CIOB Global Student Challenge 2024
Universitas Indonesia wins for second year running.
New project and cultural district described in detail.
The nature of EPCs, crticism and inaccuracies.
History, issues and redesign.
From waste recycling to energy performance the hierchy.
An introduction to WERCS and WEEE responsibilities
Dealing 2 million tonnes of waste equipment a year.
Global BACS Market: analytics and optimisation
A BSRIA glance at building automation and control systems.
What it is and how to use it.
Types of insulating plaster by binder and insulant.
Investors in People: CIOB achieves gold
Reflecting a commitment to employees and members.
Scratching beneath the surface; a guide to selection.
ECA 2024 Apprentice of the Year Award
Entries open for submission until May 31.
UK gov apprenticeship funding from April 2024
Brief summary the policy paper updated in March.
For the World Autism Awareness Month of April.