Building Regulations
Building Regulation Drawings and Building Control Applications
Once your design is complete and planning permission has been obtained, the next step is building regulations approval. Building regulations are the technical standards that ensure your loft conversion, house extension or new build is structurally sound, energy efficient, fire safe and compliant with current government requirements.
LCCL Construction’s architects prepare detailed building regulation drawings and manage the building control application on your behalf. As LABC Registered Partners, we work directly with Local Authority Building Control throughout the design and construction process, ensuring your project meets all regulatory requirements from the outset.
With over 20 years of experience, more than 200 verified reviews rated 4.7 out of 5, and LABC Awards Regional Winners 2024 for Best Residential Extension in London, our team has extensive experience preparing building regulation submissions that achieve approval efficiently across London and Hertfordshire.
Why Are Building Regulations Required?
Building regulations are a legal requirement for all loft conversions, house extensions and new builds. They ensure that the construction work meets minimum standards for structural integrity, fire safety, insulation, ventilation, drainage, electrical safety and accessibility.
Before construction begins, your building regulation drawings are submitted to building control for assessment. A building control surveyor reviews the drawings to confirm they meet current regulations. Once approved, the surveyor inspects the work on site at key stages during construction to verify that the build matches the approved drawings and complies with all standards. At completion, building control issues a completion certificate confirming the work is compliant.
Structural engineer calculations and drawings are also required alongside the building regulation drawings, as they form part of the building control application. These are covered in the next stage of the process.
What Building Regulations Cover
Building regulation drawings and the building control assessment cover a wide range of technical requirements, including structural stability and load-bearing design, fire safety including escape routes, fire doors and smoke alarms, thermal insulation and energy efficiency to current Part L standards, ventilation and air quality, damp-proofing and moisture protection, drainage and waste disposal, sound insulation between adjoining properties, electrical safety and compliance, staircase design and safe access, and glazing safety.
Our architects produce detailed drawings and specifications that address all of these requirements for your specific project. For loft conversions, particular attention is given to fire escape routes, structural support for the new floor, and thermal insulation of the roof. For house extensions, key areas include foundations, damp-proof courses, drainage connections, and thermal bridging at junctions between the existing house and the new extension.
Our Building Regulation Process
Once planning permission has been granted (or permitted development confirmed), we begin work on the building regulation drawings. These are significantly more detailed than planning drawings and specify exactly how the construction will be carried out.
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Step 01 — Detailed Design: Our architects produce comprehensive building regulation drawings showing exactly how and with what materials the extension, loft conversion or new build will be constructed. These drawings incorporate structural engineer specifications, insulation details, fire safety measures, ventilation requirements and all other technical standards required by current building regulations.
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Step 02 — Drawing Production: The full set of building regulation drawings includes proposed plans, elevations, cross sections, construction details, and a full specification detailing construction methods, workmanship standards and quality of materials. Every drawing is produced to the level of detail required by building control for assessment and approval.
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Step 03 — Submission and Liaison: We submit the building regulation application to your local building control authority on your behalf. As LABC Registered Partners, we liaise directly with the building control surveyor throughout the assessment, respond to any technical queries, and keep you informed at every stage. Once the drawings are approved, the building control surveyor arranges inspection dates for each stage of the construction.
Find out more about next step of the process: Structural engineer calculations >
Back to Planning permission >
Need Building Regulation Drawings?
Book a free consultation call to discuss your project. We will explain the building regulation requirements for your loft conversion, extension or new build and provide a quote for our architecture and design service. Call 020 8037 7332, email info@lcclconstruction.co.uk or book online.
Testimonials
LCCL Construction managed the entire process seamlessly. The team kept us informed at every stage and the quality of work was exceptional." — Ludovic, Reviews.io
Alex and his team have done a fantastic job on our loft conversion and were a pleasure to work with from start to finish. I am over the moon with the results." — Katherine, Trustpilot
Frequently Asked Questions
Q1: What is the difference between planning permission and building regulations?
Planning permission controls the appearance, size and position of a building in relation to its surroundings and neighbours. Building regulations control the technical construction standards, covering structural safety, fire protection, insulation, ventilation, drainage and electrical compliance. Most building projects require both, though some smaller projects may not need planning permission if they fall under permitted development. Building regulations approval is required for virtually all loft conversions, house extensions and new builds regardless of whether planning permission is needed.
Q2: How long does building regulation approval take?
A building regulation application (Full Plans submission) is typically assessed within 5 weeks, though building control may request amendments which can extend the timeline. Once the drawings are approved, inspections are arranged at key stages during construction. LCCL Construction manages the entire process and coordinates inspection dates with the building control surveyor to avoid delays.
Q3: What is an LABC Registered Partner and why does it matter?
LABC stands for Local Authority Building Control. As an LABC Registered Partner, LCCL Construction has been vetted and approved by LABC as a company that consistently meets high standards of construction quality and building regulation compliance. This partnership means we work closely with building control surveyors throughout the design and construction process, which helps achieve smoother approvals and fewer delays. Our LABC Awards Regional Win in 2024 for Best Residential Extension in London further demonstrates our commitment to quality.
Q4: Do I receive a completion certificate at the end of the project?
Yes. Once construction is complete and all building control inspections have been passed, the building control authority issues a completion certificate. This document confirms that the work has been carried out in accordance with building regulations and is essential for selling your property in the future. LCCL Construction ensures all inspections are arranged and passed, and that you receive your completion certificate at the end of the project.