01
Extensions & Loft Conversions
More space, better light and a home that works for you — additions and roof conversions that feel part of the original.
DPK Design Ltd · Hertfordshire
Designing Spacesfor Life
Innovative & Sustainable Architectural & Planning Services in Hertfordshire, North London and the Home Counties
Hertfordshire · North London · Home Counties
Discover DPK Good design. Everyday living.
A home is more than a building. It's how you live. We help you make the most of yours through considered design and clear, personal advice.
Our services
Your vision. Our expertise.
Architectural and planning services for every stage of your project, all with your home at heart.
02
Planning Permission & Appeals
Expert applications, pre-application advice and appeals, giving your project the clearest route to approval.
03
Building Regulations & Detail Drawings
Precise technical drawings and specifications for a compliant, buildable and well-detailed project.
04
Spatial Design
Layouts, light and materials brought together so your spaces work beautifully from the inside out.
05
Party Wall Notices & Build Over Agreements
Straightforward handling of neighbour notices and water authority agreements, keeping your build on track.
Local expertise
Architectural Services for Hertfordshire, North London and the Home Counties.
We design homes across Hertfordshire — including Ware, Welwyn, St Albans, Hitchin and Bishop's Stortford — North London, and the surrounding home counties of Essex, Bedfordshire and Buckinghamshire.
Initial concept to planning approvalOne designer guiding you through every stage.
Hertfordshire basedLocal knowledge of Hertfordshire planning authorities.
Free consultationA no-obligation conversation about your home.
The portfolio
Ideas brought to life.
A selection of completed spaces, architectural drawings and design studies from DPK Design.
Residential · Berkhamstead
01Internal Alterations & Loft Conversion
Residential · Great Gaddesdon, Hemel Hempstead
022 Storey Extensions and Garden Room
Residential · Hertford
03Roof Extension
Mixed Use · Hertford
0416 New Flats & Public Library
Residential · Mill Hill
05First Floor Extension & Loft Conversion
Residential · Buckhurst Hill
06Side & Rear Extension and Loft Conversion
Residential · East Finchley
07Loft Conversion
Commercial · Hertford
08New Build Flats
Residential · Tadworth, Surrey
09Bespoke Large Houses
A personal approach
Big ideas.
Attention to the details.
DPK Design Ltd brings architectural design and practical planning advice together. Your project starts with a conversation about what you need, what you love and what your home could become.
From extensions and loft conversions to interiors and technical drawings, DPK Design helps you move forward with clarity.
01 / LISTEN
Understand your vision
02 / DESIGN
Explore the possibilities
03 / DEVELOP
Bring the details together
Quick enquiry
Request a free consultation.
Tell us about your project and we'll be in touch to discuss your ideas, your site and the next steps.