One of the most common issues I flag in building surveys across Cannock and Staffordshire is alterations and additions to properties that lack the necessary building regulations approval. It's a problem that can genuinely derail a property sale — and one that causes considerable stress and confusion for both buyers and sellers. Understanding building regulations — what they cover, when approval is needed, and what to do about historic non-compliant work — is essential knowledge for any UK homeowner.
In this guide, I'll explain the building regulations framework in plain English, walk you through the most common situations that require approval, and explain the options available when you discover that past work hasn't been properly signed off.
What Are Building Regulations?
Building regulations are a set of legal standards that apply to most new building work in England and Wales. They exist to ensure that buildings are safe, healthy, energy-efficient, and accessible. Unlike planning permission (which is concerned with whether a development should happen and how it fits in with its surroundings), building regulations are about how building work is carried out — the technical standards it must meet.
The regulations cover 15 separate "parts" designated by letters A through S (with some gaps), each covering a different aspect of construction:
- Part A — Structure: The structural stability and integrity of the building
- Part B — Fire safety: Means of escape, fire spread prevention, fire brigade access
- Part C — Site preparation and resistance to contaminants and moisture: Damp-proofing, ground contamination
- Part D — Toxic substances: Cavity fill materials, fume resistance
- Part E — Resistance to passage of sound: Sound insulation between dwellings
- Part F — Means of ventilation: Adequate fresh air and extraction
- Part G — Sanitation, hot water safety and water efficiency: Bathrooms, WCs, hot water systems
- Part H — Drainage and waste disposal
- Part J — Combustion appliances and fuel storage systems: Boilers, fires, flues
- Part K — Protection from falling, collision and impact: Stairs, balustrades, barriers
- Part L — Conservation of fuel and power: Thermal insulation, heating efficiency
- Part M — Access to and use of buildings: Accessibility requirements
- Part N — Glazing — safety in relation to impact, opening and cleaning
- Part O — Overheating (applies to new homes from 2022)
- Part P — Electrical safety in dwellings
- Part Q — Security
- Part R — High speed electronic communications networks
- Part S — Infrastructure for charging electric vehicles
When Is Building Regulations Approval Required?
The quick answer is: for most building work beyond basic maintenance and decoration. Here's a more detailed breakdown of common projects and their building regulations status:
| Type of Work | Regs Required? | Key Requirements |
|---|---|---|
| Rear or side extension | Yes | Structure (Part A), drainage (Part H), thermal insulation (Part L), fire safety if near boundary (Part B) |
| Loft conversion | Yes | Structural changes (Part A), fire safety/means of escape (Part B), sound insulation (Part E), thermal envelope (Part L), stairs (Part K) |
| Garage conversion to habitable room | Yes | Thermal insulation (Part L), structural opening, ventilation (Part F), electrical work (Part P) |
| New boiler installation | Yes | Part J (combustion appliances) — must be installed by a Gas Safe registered engineer who self-certifies |
| New bathroom or WC | Yes | Part G (sanitation), Part H (drainage), Part P (electrical if relevant) |
| Electrical work (new circuits) | Yes | Part P — either notified to local authority or self-certified by registered electrician (NICEIC or NAPIT) |
| Internal load-bearing wall removal | Yes | Part A (structure) — structural engineer's calculations required |
| Replacement windows and doors | Depends | Must meet Part L thermal standards. FENSA or CERTASS registered installers self-certify; non-registered installers need full regs approval |
| Roof replacement | Depends | Like-for-like replacement in same material generally doesn't require regs. Change of material, structural alteration, or insulation upgrade triggers Part A and/or Part L |
| Underpinning | Yes | Part A — structural works require full regs approval and engineer involvement |
| Repointing, decoration, minor repairs | No | Routine maintenance work does not require building regulations approval |
| Solar PV panels | No | Generally covered by permitted development. Electrical installation requires Part P compliance. |
How to Apply for Building Regulations Approval
There are two routes to getting building regulations approval in England and Wales:
Full Plans Application
You submit detailed plans and specifications to your local authority's Building Control department (or a private Approved Inspector) before work starts. The Building Control Officer reviews the plans, may request amendments, and then approves them. During the work, you arrange inspection visits at key stages (foundations, structural frames, drainage, insulation, before closing in walls, etc.). When the work is complete and has passed all inspections, you receive a Completion Certificate.
This is the preferred route for significant projects like extensions and loft conversions — it provides certainty upfront and ensures the completed work is fully signed off.
Building Notice
For smaller, straightforward projects, you can submit a Building Notice before work starts. You don't need to submit detailed plans — Building Control will inspect the work as it progresses and advise on any non-compliance. However, if the work doesn't meet the regulations, you'll need to make corrections before a completion certificate is issued.
Competent Person Self-Certification Schemes
For certain types of work — particularly boiler installations (Gas Safe), electrical work (NICEIC, NAPIT), window and door replacement (FENSA, CERTASS) — registered competent persons can self-certify their own work. They notify the local authority on your behalf, and you receive a certificate that serves as proof of compliance. When you sell the property, these certificates are essential documents — your solicitor will ask for them.
What Is a Completion Certificate?
A completion certificate (sometimes called a "final certificate" for private Approved Inspectors) is issued by Building Control after the final inspection confirms the work has been completed in accordance with the approved plans and meets the building regulations. It is the formal evidence that the work is compliant — and it is a document that buyers' solicitors and mortgage lenders expect to see.
Keep your completion certificates safe. If you don't have them, you may need to apply to the local authority for copies — though their records for older work may be incomplete.
What Happens if Building Regulations Were Never Obtained?
This is where things get complicated. I find non-compliant or unapproved alterations in a significant proportion of the properties I survey in Cannock. The most common issues are:
- Loft conversions without regs approval — often done cheaply by non-registered builders, the structural work and fire safety provisions are frequently inadequate
- Removed load-bearing walls without calculations or certification — very common in open-plan kitchen/diner conversions carried out in the 1990s and 2000s
- Extensions without regs approval — particularly on 1970s and 1980s homes
- Electrical work done by non-registered electricians
- Garage conversions without thermal insulation or proper damp-proofing
If you're selling and your solicitor or buyer's solicitor discovers unapproved work, you have several options:
Regularisation Application
If the work is relatively recent (within the last few years), you can apply to the local authority for a regularisation certificate. Building Control will inspect the work and, if it complies with the regulations in force at the time it was carried out, will issue a regularisation certificate. If it doesn't comply, you'll need to carry out remediation works. This can be disruptive — for structural work, for example, Building Control may need to see inside walls or floors.
Indemnity Insurance
For older work — generally more than 12 months old where local authority enforcement action is no longer possible — it's common to purchase a building regulations indemnity insurance policy. This protects the buyer and their mortgage lender against the cost of any future enforcement action, including the cost of making non-compliant work compliant. Policies are typically cheap (£100–£300 as a one-off premium) and are arranged through your solicitor.
Note: indemnity insurance does not make non-compliant work compliant — it just insures against the financial risk. If there are genuine structural safety concerns about the non-compliant work, insurance alone isn't sufficient; the underlying defect needs to be assessed and potentially remediated.
Retrospective Regularisation
In some cases — particularly for structural alterations where there are safety concerns — the right course of action is to have the work properly assessed, bring it up to standard, and obtain a regularisation certificate. This gives the buyer genuine certainty rather than just insurance.
Building Regulations vs. Planning Permission — What's the Difference?
These two regulatory regimes are frequently confused — and sometimes both apply to the same project. Here's the key distinction:
- Planning permission is about whether a development is appropriate for its location — its size, appearance, impact on neighbours, and consistency with local planning policy. It's granted by the planning authority (Cannock Chase District Council for most of the area we cover).
- Building regulations approval is about how the work is built — technical standards for structure, fire safety, thermal performance, drainage, etc. It's dealt with by Building Control (either the local authority or a private Approved Inspector).
A project can require planning permission without needing building regulations approval (e.g., a new garden fence above certain heights). More commonly, a project requires building regulations approval without needing planning permission (e.g., most extensions under permitted development size limits). And many significant projects require both.
Advice for Property Buyers: What to Check
When buying a property in Cannock or anywhere in Staffordshire, here's what I recommend you do to protect yourself from building regulations issues:
- Commission a full building survey — your RICS Level 2 or Level 3 survey will flag any alterations that may require building regulations approval and should identify structural concerns with non-compliant work.
- Request all documentation from the vendor — ask for completion certificates for all significant work, FENSA certificates for windows, Gas Safe certificates for boiler installations, and electrical installation certificates.
- Check local authority planning records — most councils have online portals where you can search planning and building regulations applications by address. This gives you an independent check on what approvals have been obtained.
- Raise enquiries through your solicitor — your conveyancer will raise standard form enquiries about alterations and building regulations as part of the conveyancing process. Make sure you read the responses carefully.
Frequently Asked Questions About Building Regulations
Do I need building regulations for a kitchen renovation?
A like-for-like kitchen replacement (new units, worktops, tiles) generally doesn't require building regulations. However, if you're moving plumbing, adding a new electrical circuit, or making structural changes (like removing a wall), building regulations will apply to those specific elements.
Can I sell a house with unapproved building work?
Yes, but it needs to be disclosed and dealt with in the conveyancing process. The most common solution for older work is indemnity insurance. For more recent unapproved work, a regularisation application or remediation may be required. Your solicitor will advise on the most appropriate approach.
How long does the local authority have to take enforcement action for non-compliant building work?
For most types of building regulations non-compliance, the local authority has 12 months from the date of completion of the work to take enforcement action. After this period, enforcement action under the building regulations is no longer possible — though this doesn't mean the work is "safe" or compliant.
What is an approved inspector?
Approved Inspectors are private companies or individuals that have been approved by the government to provide building regulations approval services as an alternative to the local authority's Building Control service. They offer the same building regulations approval and can issue certificates of compliance. They are now sometimes referred to as Registered Building Control Approvers (RBCAs) following the Building Safety Act 2022 reforms.
Do I need planning permission and building regulations for a loft conversion?
Building regulations are almost always required for a loft conversion — they're mandatory. Planning permission depends on the size and type of conversion. Most loft conversions within size limits can be done under permitted development rights without planning permission, but all must comply with building regulations covering structure, fire safety, insulation, and access (stairs).
What is a regularisation certificate and how do I get one?
A regularisation certificate is issued by the local authority when it inspects and approves work that was carried out without building regulations approval. To apply, contact your local Building Control department, describe the work carried out and when, and pay the applicable fee. A Building Control Officer will inspect and determine whether the work complies with the regulations in force at the time it was completed. If it does, the certificate is issued. If it doesn't, remediation works are required.
Need Surveying Advice in Cannock?
If you're buying a property and have concerns about building regulations compliance, or if you're a seller wanting to understand your obligations before going to market, our Cannock Surveyors team can help. Our RICS Level 3 Building Survey provides a comprehensive assessment of the property's condition, including identification of any apparent alterations that should have building regulations approval.
We serve Cannock, Hednesford, Rugeley, Burntwood, Lichfield, Stafford, Tamworth and the wider Staffordshire area.
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