Compliance and specifications
Delivering accurate, regulation-compliant designs and documentation is essential for any successful project, residential or commercial.
Our detailed architectural design services ensure every aspect of your build meets current building regulations, planning requirements, British and European standards, fire safety, structural integrity, energy performance, and more. We provide the technical clarity and commercial documentation that contractors, fabricators, approved inspectors, and local authorities need to proceed confidently.
Whatever the scale, from loft conversions and home extensions to curtain walling, rainscreen cladding, and large commercial facade projects, our independent team works solely in your interest, producing unbiased, high-quality outputs without ties to suppliers or contractors.
Achieve full compliance with confidence.
Our Compliance and Specifications Service
Our compliance and specifications packages include everything you need to produce fully approvable, build-ready technical information, including:
- A site visit and consultation with a designer to assess feasibility, constraints, and regulatory context
- Measurements and surveys of the existing structure, including structural assessments where required
- Design concepts and visualisations, showing proposed layouts, materials, and performance criteria
- Detailed architectural design services, comprehensive construction drawings including plans, elevations, sections, details, and structural information
- Specifications for materials, finishes, performance standards, tolerances, testing, and installation methods
- Commercial documentation, technical schedules, compliance statements, coordination details, wind load calculations, and supporting reports
- Support with planning permission and building regulations applications, including full submissions and authority liaison
- Optional project management and on-site verification to maintain compliance throughout construction
From simple residential alterations and Velux loft conversions to complex dormer extensions, hip-to-gable projects, mansard roofs, curtain wall systems, and bespoke commercial facades, our architectural design team manages the entire technical process using advanced software for precise, compliant results.
Ready to ensure complete compliance and clear specifications?
Book a consultation with one of our designers today.
Compliance and Specifications FAQs
Compliance means your design fully satisfies building regulations, planning policies, relevant standards (BS/EN), fire safety, accessibility, thermal performance, acoustics, and structural safety. PDK integrates these requirements from initial concept through to detailed drawings and documentation, minimising delays and rework.
Commercial documentation covers detailed technical drawings, material and performance specifications, installation details, compliance certifications, wind load assessments, coordination schedules, and handover information. We produce full packages for curtain walling, rainscreen cladding, facade systems, and other commercial elements, tailored to fabricators, main contractors, and project teams across the UK.
Detailed architectural design services create precise, coordinated construction information that ensures accurate pricing, safe building, regulatory approval, and realisation of your vision. Our independent drawings and specs remove ambiguity, control costs, and deliver quality without supplier influence.
Most extensions, conversions, loft works, structural changes, and commercial fit-outs need building regulations approval to confirm safety and performance. Some smaller residential projects may qualify as permitted development, but we always check thoroughly and prepare the necessary detailed drawings, specifications, and applications.
We reference the latest regulations, British/European standards, manufacturer technical data, and our 30+ years of experience. Specifications are clear, professional, and comprehensive—covering materials, finishes, performance, testing, tolerances, and installation—so they support approvals, tenders, and on-site work effectively.
Project type and complexity (e.g., basic Velux vs. full dormer or commercial facade), site constraints, location (conservation areas, listed buildings), and intended use (habitable rooms have stricter rules on height, insulation, fire, etc.). We balance regulatory demands with design goals to maximise value.
We cover residential loft conversions (Velux, dormer, hip-to-gable, mansard), extensions, remodelling, and full commercial detailing/documentation for systems like curtain walling, rainscreen cladding, and structural glazing from manufacturers such as Kawneer, Schüco, Reynaers, and others.
Many loft conversions and smaller extensions fall under permitted development (no planning needed), but larger dormers, mansards, or works in designated areas usually require it. We prepare all required drawings, statements, and handle authority submissions for a smooth process.
Why Choose PDK Project Engineering?
Your project deserves independent expertise, not compromises.
Since 1995, we’ve helped clients across the Wirral, Chester, Ellesmere Port, Liverpool City Region, and throughout the UK achieve compliant, high-quality outcomes through precise detailed architectural design services and robust commercial documentation.
Working independently of contractors and suppliers’ means our recommendations are always impartial and focused on what’s best for you. With clear communication, meticulous attention to detail, and a personal touch, we deliver transparent processes and results you can rely on.