Electrical Certificates
Since 2005, all electrical work in dwellings in England and Wales whether carried out professionally or as DIY, and whether or not the work is notifiable to a building control body (see below), must meet the requirements of Part P of the Building Regulations. In April 2013 the requirements for England were amended. Compliance with Part P is intended to keep you and your family as safe as possible from electrical hazards.
The requirements of Part P apply to new dwellings and to any alterations or additions to the electrical installations of existing dwellings, including full or partial rewires.
Part P states that anyone carrying out electrical work in a dwelling must ensure that reasonable provision has been made in the design and installation of the electrical installations in order to protect any persons who might use, maintain or alter the electrical installation of that dwelling from fire and injury, including electric shock.
Legal Basis
With all building work, the owner of the property (or land) in question is ultimately responsible for complying with the relevant planning rules and building regulations (regardless of the need to apply for planning permission and/or building regulations approval or not).
Therefore, failure to comply with the relevant rules will result in the owner being liable for any remedial action (which could go as far as demolition and/or restoration). The general advice is to always discuss your proposals with the relevant Local Planning Authority and Building Control Service before starting work.
See Also In Chimni
Chimni Wiki Energy Performance Certificate (EPC)
Chimni Wiki Home Information Packs - HIPs
Other Interesting Web Sites
http://www.electricalsafetyfirst.org.uk/guides-and-advice/building-regulations/england/
http://www.planningportal.gov.uk/buildingregulations/
References
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