Fashion Product Development
Grade House Ltd is a London based fashion product development company supporting designers, startups and established brands with technical garment development. Our team provides pattern cutting, grading, digitisation, sampling, tech packs, fabric sourcing and manufacturing support from concept to production.
Our Complete Services
A Comprehensive Guide to Product Development
Embark on a journey through the intricacies of fashion product development, where creativity intertwines with strategic planning. In this guide, we'll lead you through four indispensable steps to transform your design aspirations into tangible and market-ready pieces.
Trusted by Established Luxury & Corporate fashion Brands
Grade House is a London based technical fashion product development company providing precision pattern services, grading strategy, and structured garment development for established luxury houses and international fashion brands across the UK. We support the technical foundation of collections from concept refinement through to production preparation, ensuring accuracy in fit, consistency in grading, and alignment with manufacturing requirements. Our approach focuses on technical clarity, reliability, and long term production efficiency for brands operating at scale.
Design Consultation
Incorporating the latest trends, innovative techniques, and a keen understanding of market demands, our team collaborates with you to develop a collection that not only meets but exceeds expectations. We emphasize a delicate balance between creativity and market viability, ensuring that your clothing line not only stands out for its artistic merit but also resonates with your target audience.
Who we help
We work with emerging designers, fashion startups, established brands, uniform suppliers and international clients who need practical technical support before manufacturing. Whether you are developing your first sample or preparing a production ready collection, the goal is to make each garment clearer, more accurate and easier to produce.
Fashion product development services in London
Pattern Cutting: We develop accurate garment patterns from sketches, samples or technical references. This stage helps define shape, fit, construction and production feasibility.
Pattern Grading: We create size ranges from approved base patterns while protecting fit consistency across sizes. Grading is essential before size-set sampling and production.
Pattern Digitising: We convert paper patterns into digital files for grading, amendments, storage and factory communication. Digital pattern files make development easier to manage as a brand grows.
Tech Pack Development: We prepare technical documents that communicate measurements, construction details, materials, trims and finishing requirements to suppliers or factories.
Toiling and First Sample: We help brands test fit, construction and design decisions before moving into production. This reduces risk and gives a clearer route to final approval.
Fabric Sourcing: We support fabric and trim sourcing based on design intent, budget, garment function and production needs.
Costing and Marker Making: We help estimate fabric use, reduce waste and prepare more efficient production plans.
Manufacturing Support: We support UK and overseas manufacturing preparation by connecting technical development, sample approval, files and production planning.
From concept to production
Our process can support the full journey from an initial idea to production preparation. A typical project may begin with consultation and design review, then move into pattern development, sampling, fitting, amendments, grading, tech packs and manufacturing support. This structure helps brands avoid disconnected decisions between design, sampling and production.
Why brands work with Grade House
Brands work with Grade House because garment development requires both creative understanding and technical control. Our team focuses on practical development decisions that improve fit, construction, documentation and production readiness, helping brands move forward with fewer avoidable revisions.
Bring your designs to life with Grade House
From fabrics to homeware and leather products, our easy design tools will help you create high-quality, unique products. Let's create something amazing together!
