Building regulations

Opening up the kitchen, removing a wall or converting the loft can look straightforward on a floor plan. In a period home, however, the structural work behind that change can be considerably more complicated.

Building regulation drawings are detailed technical drawings that prove your construction project meets legal safety requirements and complies with UK building regulations. In 2025, costs range from £1,200 for simple extension

Buying a property with previous building work can become a costly mistake if planning permission, Building Regulations or structural alterations have not been properly documented. This guide explains how to identify potential issues, understand the approval process and prepare your property for renovation using real experience from London projects completed by AC Design Solution.

Rear extensions need Building Regulations approval even without planning permission. This guide covers foundations, structural openings, insulation, drainage and fire safety.

Building control drawings show exactly how your project meets UK Building Regulations for structure, fire safety and energy efficiency. This guide explains requirements, examples and what homeowners must include to gain approval first time.

Planning drawings show what you want to build. Building regulation drawings show how to build it safely. Most UK projects need both — here's the key difference.

Installing a downstairs toilet requires building control approval for drainage, ventilation, layout and access. Minimum size is 800 ×1200mm, with 2100mm headroom. Proper waste connections, trap seals, and outward-opening doors ensure compliance.

Structural engineering drawings show structural integrity & safety, while building regulation drawings ensure complete compliance with UK building regulations. Learn when you need each type of drawing for your project & avoid costly delays.