Housing defects
Defects are aspects of a building that are not performing adequately for their intended use.
Defects may occur because of:
- Design deficiencies.
- Product or material deficiencies.
- Poor specification.
- Workmanship deficiencies.
- Maintenance deficiencies.
- Changes of use.
- Environmental influences.
Some defects are apparent (patent defects) and some are hidden (latent defects).
A National New Home Customer Satisfaction Survey undertaken by the Home Builders Federation (HBF) and the National House Building Council (NHBC) in 2015, found that 93% of buyers reported problems to their builders, and of these, 35% reported 11 or more problems.
Defects in new buildings may be attributable to designers, suppliers or contractors, and may result in a claim. In addition, during the first 12 months or so after completion (depending on the terms of the construction contract), the contractor may be required to remedy defects during a time commonly referred to as the 'defects liability period', and beyond that there may be some form of ongoing warranty.
In addition, irrespective of contractual obligations, the Defective Premises Act 1972 provides that a person taking on work for, or in connection with, the provision of a dwelling owes a duty to the person acquiring the dwelling and subsequent purchasers to see that the work which they take on is done in a workmanlike or professional manner, with proper materials so that it will be fit for habitation when completed.
However, defects in older buildings may not be clearly attributable to a particular party, but may result from a change in circumstances or use, an environmental impact, poor maintenance and so on, or from a combination of factors.
The housing stock in England is relatively old, with approximately 44% built before 1980, and 20% built before 1919. As a result it is prone to poor performance and a number of common defects.
The list below provides links to articles on Designing Buildings Wiki that provide information about common defects in housing:
- Carbon monoxide emissions.
- Cold bridge.
- Contaminated land.
- Cracking and building movement. (see also: Ground heave / Settlement / Subsidence).
- Damp (see also: Penetrating damp / Rising damp)
- Condensation (see also Interstitial condensation)
- Defects in brickwork (see also: Efflorescence / Spalling).
- Defects in dot and dab.
- Defects in stonework.
- Dry rot.
- Flooring defects.
- Hazardous substances (See also: Asbestos).
- Indoor air quality.
- Mould growth.
- Roofing defects (See also: Flat roof defects).
- Sick building syndrome.
- Wall tie failure.
- Wet rot.
- Woodworm.
Other common problems may include:
- Defective chimneys.
- Defective rainwater fittings, plumbing or drainage.
- Defective windows.
- Defective wiring.
- Defective plumbing.
- Draughts.
- Inadequate ventilation of the sub-floor or roof space.
- Excessive energy consumption.
- Poorly installed insulation.
- Poorly installed or absent damp proof course.
- Decayed or damaged windows and doors.
- Sound transmission.
- Encroachment by trees.
- Chimneys that have been blocked up, but not filled.
- Infestations.
[edit] Find out more
[edit] Related articles on Designing Buildings Wiki
- Building pathology.
- Bungalow.
- Certificate of making good defects.
- Defective Premises - Liability and Measure of Damages.
- Defective Premises Act.
- Defects liability period.
- Defects.
- Dwelling.
- English housing stock age.
- Flat definition.
- Household.
- Housing Defects Act 1984.
- NHBC.
- Remedial work.
- Residential definition.
- Schedule of condition.
- Schedule of defects.
- Scott schedule.
- Types of dwelling.
- Types of household.
- Use class.
- Wellbeing.
[edit] External references
IHBC NewsBlog
'Restoration and Renewal: Developing the strategic case' Published
The House of Commons Library has published the research briefing, outlining the different options for the Palace of Westminster.
Brum’s Broad Street skyscraper plans approved with unusual rule for residents
A report by a council officer says that the development would provide for a mix of accommodation in a ‘high quality, secure environment...
English Housing Survey 2022 to 2023
Initial findings from the English Housing Survey 2022 to 2023 have been published.
Audit Wales research report: Sustainable development?
A new report from Audit Wales examines how Welsh Councils are supporting repurposing and regeneration of vacant properties and brownfield sites.
New Guidance Launched on ‘Understanding Special Historic Interest in Listing’
Historic England (HE) has published this guidance to help people better understand special historic interest, one of the two main criteria used to decide whether a building can be listed or not.
"Conservation Professional Practice Principles" to be updated by IHBC, HTVF, CV
IHBC, HTVF, and CV look to renew this cross-sector statement on practice principles for specialists working in built and historic environment conservation roles.
Context No 177 Issued - Themed on working with Glass
Topics range from Manchester Cathedral’s stained glass to the long reign of Vitrolite, plus the IHBC North-West Branch conference and more.
Part of historic Old Courthouse in Cockermouth collapses into river
A section has fallen away and landed in the River Cocker below, including the back walls over three floors, sections of flooring and parts of the roof.
Scaffolding removed from Salisbury Cathedral after 37 years
Starting with a survey in 1986, the 'topping out' ceremony took place 7 Sep 2023.
Demolition of Kirkcaldy’s Category B former Kitty’s nightclub
Following a fire, engineers confirmed that the building faced complete demolition.