Build Your Dream Extension with Confidence

From Initial Ideas to the Final Handover

A clear, stress-free process from Kent’s trusted building specialists.

Whether you’re dreaming of a stunning open-plan kitchen, a luxurious master suite or simply need more room for your growing family, Harson Homes will guide you through every stage of your project.

From your first ideas through to completion, our experienced team manages the entire process with honesty, transparency and exceptional craftsmanship.

✓ Free Initial Consultation
✓ Expert Guidance
✓ Fully Managed Project
✓ High-Quality Craftsmanship
✓ Building Control Compliant

Book Your Free Site Visit →


Step 1

Let’s Talk About Your Ideas

Every successful project starts with a conversation.

We’ll visit your home, listen to your ideas, discuss your goals and understand how you want to use your new space.

Whether you’re extending for a larger kitchen, extra bedrooms, a home office or open-plan living, we’ll provide honest advice on what’s achievable and help shape the best solution for your home and budget.


Step 2

Site Survey & Feasibility

Before spending money on drawings or applications, we’ll assess:

  • Existing property
  • Access
  • Ground conditions
  • Drainage
  • Structural considerations
  • Planning constraints

This early advice can save thousands by identifying potential issues before work begins.


Step 3

Design & Budget Planning

Once you’re happy with the concept, your architect or designer prepares detailed drawings.

Already have plans? Great.

Need an architect? We can recommend trusted professionals we’ve worked with for years.

At this stage we’ll also provide realistic budget guidance, helping you understand likely construction costs before moving forward.

No hidden surprises.


Step 4

Planning Permission

Many extensions fall under Permitted Development, while others require planning approval.

Don’t worry, we’ll explain exactly what’s needed and work alongside your architect throughout the process.

We regularly assist homeowners with:

  • Rear Extensions
  • Side Extensions
  • Double Storey Extensions
  • Loft Conversions
  • Annexes
  • Complete Renovations

Step 5

Building Regulations

Building Regulations ensure your home is safe, energy efficient and built to modern standards.

We coordinate with Building Control throughout the build, arranging inspections and ensuring every stage is signed off correctly.

This includes:

✔ Foundations

✔ Drainage

✔ Structural Steel

✔ Insulation

✔ Roofing

✔ Fire Safety

✔ Electrical & Plumbing

✔ Ventilation

✔ Energy Efficiency


Step 6

Detailed Fixed Quotation

Once drawings and structural information are complete, we’ll prepare a comprehensive quotation.

You’ll know exactly what’s included.

No vague estimates.

No hidden extras.

Just clear pricing and complete transparency.


Step 7

Construction Begins

This is where your vision becomes reality.

Our experienced team carefully manages every stage of construction, including:

  • Site setup
  • Foundations
  • Drainage
  • Brickwork
  • Structural steelwork
  • Roof construction
  • Windows & doors
  • First fix electrics & plumbing
  • Plastering
  • Kitchens & bathrooms
  • Flooring
  • Decoration
  • External landscaping

Throughout the project you’ll receive regular updates so you’re always informed.


Step 8

Completion & Handover

As we approach completion we’ll carefully inspect every detail to ensure everything meets our exceptionally high standards.

We’ll also provide all relevant certification including:

  • Building Control Completion Certificate
  • Electrical Certificates
  • Gas Certificates
  • Window & Door Certifications
  • Specialist installation documentation where applicable

Our aim is simple…

To hand over a home you’ll be proud of.


Why Choose Harson Homes?

We specialise in creating beautiful homes throughout Kent.

From bespoke extensions to complete renovations, our reputation has been built on quality workmanship, attention to detail and outstanding customer service.

When you choose Harson Homes, you’re choosing a builder who genuinely cares about delivering your project properly.

What You Can Expect

✓ Fully Managed Projects

✓ Honest Communication

✓ Premium Craftsmanship

✓ Experienced Tradespeople

✓ High-End Finishes

✓ Transparent Quotations

✓ Exceptional Customer Service


Frequently Asked Questions

Do I need planning permission?

Not always. Many projects fall under Permitted Development. We’ll advise you from the outset.

How much does an extension cost?

Every project is unique. Following your site visit we’ll provide realistic budget guidance before producing a detailed quotation.

How long will it take?

Depending on size, most extensions take between 3 and 8 months from commencement.

Will I need to move out?

Usually not. We carefully phase the works to minimise disruption wherever possible.


Ready to Start?

Whether you’re still exploring ideas or already have architectural drawings, we’d love to help.

Arrange your FREE consultation today.

Recent Projects

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Extension and Alterations in Whitstable

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Extension in Whitstable in August 2025 3
HARSON HOMES

Our mission is to provide the residents of Canterbury with a no hassle Building service where all work exceeds expectations, meets deadlines & offer excellent value.

We always strive for growth and development. We don’t want to have a large team, we want to have a team that works in unity.