Extension Plan Services St Helens – Melrose Designs

Planning a house extension is one of the most exciting ways to improve your home. Whether you’re dreaming of a larger kitchen, an open-plan living space, or a new bedroom, extending your property is a smart investment that adds both value and functionality. At Melrose Designs, we provide expert extension plan services in St Helens, helping you bring your ideas to life—quickly, affordably, and with full planning and building control support.

With over 15 years of experience in Building Control and local authority liaison, we have the insight, technical skill, and planning knowledge to guide your project from concept to approval without the stress. Our understanding of local planning policies in St Helens and the wider North West makes us a trusted name in residential architectural design.

Why Choose Melrose Designs for Your St Helens Extension?

✅ Deep Local Knowledge

The architecture in St Helens is wonderfully varied—from Victorian terraces and Edwardian townhouses to more modern semi-detached homes. We design extension plans that are sensitive to your property’s character while also aligning with your personal style and future needs. We know what local planning officers look for and how to create designs that fit seamlessly into your neighbourhood.

✅ Planning Permission Made Easy

Worried about getting planning permission? Don’t be. Our team handles the entire process for you, from pre-application advice to drawing submissions, planning applications, and building regulations compliance. With strong working relationships with local councils across St Helens, Wigan, and Merseyside, we help you avoid delays and rejections.

Our Extension Planning Services Include:

Measured site surveys
Existing and proposed drawings (floor plans, elevations, sections)
Full planning permission and permitted development applications
Building Regulations drawings and specifications
3D visualisations and concept renders
Consultation with structural engineers if needed
Liaison with local authority planning and building control

We deliver clear, accurate, and fully compliant architectural drawings that give your builder everything they need to get started—while giving you peace of mind.

3D Visualisations – See Your Dream Before You Build

One of the most valuable tools we offer is 3D visualisation. Instead of just looking at flat floorplans, you’ll be able to see your extension from every angle. This helps you make confident decisions and visualise how natural light, furniture layouts, and finishes will work in your new space—before construction even begins.

Designed Around Your Budget and Lifestyle

At Melrose Designs, we don’t believe in one-size-fits-all designs. Every client has a different lifestyle, budget, and set of goals. That’s why we take time to understand:

Your household needs (growing family, working from home, multigenerational living, etc.)
Your long-term plans for the property
Your budget for both design and construction
Any specific features you want included (e.g. bifold doors, rooflights, utility areas)

We then create a design solution that works for you—beautiful, practical, and cost-effective.

We Cover All Types of Extensions in St Helens

Our extension plan services in St Helens include:

Single-storey rear extensions – Perfect for open-plan kitchens and dining spaces
Double-storey extensions – Add bedrooms and bathrooms without sacrificing garden space
Wraparound extensions – Maximise corner plots and side returns
Garage conversions – Turn unused garages into offices, gyms or guest rooms
Loft conversions – Add value and space with dormers or Velux rooflight designs
Orangeries and sunrooms – Elegant glazed extensions for year-round enjoyment

A Hassle-Free Extension Planning Experience

At Melrose Designs, we’re proud to offer a stress-free experience. From your first consultation to your final drawings, we keep the process simple, transparent, and supportive. We’ll guide you through every stage:

Initial call or consultation – We learn about your goals and provide a quote
Home visit and survey – We measure your property and explore options
Concept design – We produce initial plans and 3D visuals
Planning submission – We handle the application with St Helens Council
Building Regulations – We produce compliant technical drawings for approval
Ongoing support – We stay available during the build if your builder needs clarification

Contact Melrose Designs Today

If you’re ready to extend your home in St Helens, get in touch with Melrose Designs today. We offer free quotes and no-obligation consultations, and we’re always happy to talk through your project.

📍 Local Service Areas: St Helens, Rainhill, Thatto Heath, Sutton, Haydock, Newton-le-Willows, and surrounding towns.

📞 Call us on 07715 886489
📩 Email us or use the contact form on our website to get started.

Extension Plan Services St Helens – Melrose Designs