Building Control Drawings from £995 + VAT

Fully Compliant Building Regs Drawings for Extensions, Conversions & New Builds

At Draw Plans, we specialise in creating precise, regulation-compliant building control drawings for planning-approved projects across London and the Home Counties. Whether you’re building an extension, converting your loft or garage, or undertaking a full renovation, our building regs drawings ensure your project meets all structural, thermal, and safety requirements.

Prices from just £995 + VAT for most domestic projects.

What Are Building Control Drawings?

Building control drawings — also known as building regs drawings — are detailed technical plans used to demonstrate how your project will comply with UK Building Regulations.

They go far beyond the basic layouts used for planning permission and typically include:

Construction details (walls, floors, roofs)
Insulation and energy efficiency measures
Fire safety and escape routes
Drainage layouts
Ventilation
Structural elements (steel beams, foundations, etc.)
Material specifications

These drawings are reviewed by your local authority or private approved inspector to issue a Building Regulations Approval — a legal requirement before construction can begin on many projects.

Building Control Drawings Cost

At Draw Plans, we offer fixed pricing for most residential properties:

Project TypeCost (from)

Rear or side extension£995 + VAT
Loft conversion (Velux, Dormer, etc.) £1,095 + VAT
Garage conversion £995 + VAT
Internal alterations or knock-through £895 + VAT
New build or complex conversionsQuote required

We also offer discounts for combined services (e.g., planning + building regs + structural).

Why You Need Building Control Drawings

Submitting accurate building control drawings is crucial for:

Starting construction legally
Avoiding costly rework later due to non-compliance
Satisfying mortgage lenders and insurance
Meeting HMO or licensing standards
Getting completion certificates from Building Control

Without these documents, you risk delays, penalties, and enforcement action — even if you have planning permission.

What’s Included in Our Building Regs Drawings Package

When you work with Draw Plans, you receive a complete technical pack ready for Building Control submission. This usually includes:

Existing & proposed floor plans, elevations, and sections
Detailed construction drawings
Insulation values and Part L compliance
Fire strategy and means of escape (Part B)
Ventilation, heating, and lighting specs (Part F, G, L)
Drainage and waste layouts (Part H)
Structural coordination (if applicable)

We work alongside engineers where needed and submit your drawings to either your local authority building control department or an approved inspector of your choice.

Tips for Getting Building Control Approval Quickly

✔ Start with planning-approved drawings
Building control drawings build on your planning permission — make sure that’s in place first.

✔ Get a measured survey done
Accurate dimensions = better coordination, especially for extensions and conversions.

✔ Involve your builder early
We’re happy to coordinate with your contractor to ensure buildability and clear communication.

✔ Consider using a private building inspector

Private Approved Inspectors often offer quicker site inspections and more flexible review timelines than some local authorities.

✔ Don’t forget your structural engineer
For most structural work (removing walls, lofts, foundations), you’ll need separate calculations — we can coordinate this for you.

Building Control Drawings for All Project Types

We provide building regs drawings for:

Rear and side extensions
Loft conversions (Velux, dormer, hip-to-gable, mansard)
Garage conversions
Outbuildings and annexes
Basement conversions
Internal alterations (e.g., removing load-bearing walls)
HMO conversions and subdivisions into flats

Every drawing is tailored to your property type, layout, and design goals.

Why Choose Draw Plans?

Over 10 years of experience with residential projects in London & Home Counties
Fixed prices starting from £995 + VAT
Fast turnaround times
Detailed, compliant, and builder-ready plans
Coordination with structural engineers, building inspectors, and local authorities

What Our Clients Say

“Draw Plans provided our building regs drawings for a loft conversion in Croydon. Super detailed, approved first time, and our builder had everything he needed.”
— James T., Croydon

“Clear and professional service. Their building control drawings were essential in getting our HMO license approved. Highly recommend.”
— Simone D., Barnet

“Great experience from start to finish. Their building regs plans passed without issue and helped us avoid delays.”
— Ali R., Walthamstow

Ready to Get Started?

If you need building control drawings in London or the surrounding counties, Draw Plans is here to help. Whether your project is large or small, our experienced team will make sure your drawings are accurate, clear, and compliant.

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