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Building Regulations and Other Guidance
Part A Structure
Part B Fire Safety
Part C Site Preparation and Resistance to Contaminants and Moisture
Part D Toxic Substances
Part E Sound
Part F Means of Ventilation
Part G Sanitation, hot water safety and water efficiency
Part H Drainage and waste disposal
Part J Combustion appliances and fuel storage systems
Part K Protection from falling, collision and impact
Part L Conservation of fuel and power
Part M Access to and use of buildings
Part O Overheating
Part P Electrical safety
Part Q Security
Part R Physical infrastructure for high-speed electronic communications networks
Part S Infrastructure for the charging of electric vehicles
Air Leakage
Regulation 7 Materials and Workmanship
Radon
Building Energy Rating: EPC
Energy Efficiency & Renewable Energy Systems
Timber Frame Construction
Acceptable Construction Details
Typical Inspection Reports
Section 12: Consequential improvements
12.1 For an existing dwelling with a total useful floor area of over 1000m2, additional work may be required to improve the overall energy efficiency of the dwelling if proposed work consists of or includes any of the following.
a. An extension.
b. Providing any fixed building service in the dwelling for the first time.
c. Increasing the capacity of any fixed building service (which does not include doing so on account of renewable technology).
Consequential improvements should be carried out to ensure that the dwelling complies with Part L of the Building Regulations, to the extent that they are technically, functionally and economically feasible.
12.2 Technical guidance on consequential improvements is given in Approved Document L, Volume 2: Buildings other than dwellings.