Our services
At Big Discount Plans, we provide professional architectural and planning design services for homeowners, builders, and developers across Greater London. We deliver precise, build-ready plans that get approved quickly and affordably.
Planning Consultation
We start by understanding your goals and guiding you through the planning process.
Our experts offer clear, practical advice to maximise approval success and help you make informed decisions.
We handle all aspects of your planning application — from design strategy to submission — ensuring compliance with local council requirements.
Planning Drawings
Our detailed planning drawings form the foundation of every successful project.
We prepare accurate, scaled designs for extensions, loft conversions, new builds, and renovations — tailored to your property and objectives.
We also act as your planning agent, liaising directly with your local council to streamline approval.
Building Regulation Drawings
Once planning is approved, we produce comprehensive technical drawings for construction and building control approval.
These include floor plans, sections, structural details, and specifications that ensure your project meets all legal and safety standards.
Our clear, compliant drawings help builders execute your project with confidence and precision.
Structural Calculations
Working alongside qualified structural engineers, we provide all necessary calculations for beams, load-bearing walls, foundations, and roof structures.
Our detailed reports guarantee your project’s stability and compliance with current building regulations — saving time and avoiding costly redesigns later.
Party Wall Services
Our experienced Party Wall Surveyors handle notices, agreements, and full compliance with the Party Wall etc. Act 1996.
We manage communication between property owners to ensure your project runs smoothly and legally, protecting your rights and avoiding disputes.
House Extensions
Expand your home with a beautifully designed extension that blends seamlessly with your property.
We design rear, side, wrap-around, and double-storey extensions that enhance your space, natural light, and property value — while meeting all planning and building regulation requirements.
Loft Conversions
Transform your unused attic space into a bright, functional living area.
Whether you’re creating a new bedroom, office, or studio, our team designs loft conversions that meet both aesthetic and structural standards — including dormer, hip-to-gable, and mansard layouts.
HMO Conversions
We provide full architectural design and compliance packages for HMO conversions, ensuring your property meets all fire safety, amenity, and layout regulations.
Our experience covers both single to HMO conversions and purpose-built shared properties, making the process smooth and fully compliant with local authority standards.
Flat Conversions
Maximise your property’s potential by converting a single dwelling into multiple self-contained flats.
We handle all planning, building control, and layout optimisation to ensure comfort, compliance, and profitability.
New Builds & Redevelopments
From concept to completion, our team produces full design packages for new build homes, infill developments, and complete property redevelopments.
We focus on efficiency, style, and practical design to ensure your project is approved and built successfully.
Extensions & Loft Conversions
Our designers create practical, visually appealing layouts for single-storey, double-storey, side, and rear extensions, as well as loft conversions that enhance your property’s value.
We combine creativity with technical accuracy to make sure every design complements your existing home and meets planning standards.
Project types
Ready for a free quote?
Ready to turn your plans into reality?
Tell us a few details about your property and what you’re planning.
Our team will get back to you with a fast, accurate quote with no hidden fees.
info@bigdiscountplans.co.uk