​A well-designed kitchen extension can completely transform your home. Whether you're dreaming of a spacious open-plan kitchen-diner or a sleek cooking and entertaining space, a smart kitchen extension adds both lifestyle value and property value. At Draw Plans, we specialise in creating bespoke kitchen extension plans for homeowners across Greater London, starting from just £795 + VAT.

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In this guide, we’ll walk you through the best kitchen extension ideas, typical kitchen extension costs, and how to plan the ideal layout for your space.

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Popular Kitchen Extension Ideas

1. Rear Kitchen Extensions

A rear extension is one of the most popular ways to expand a kitchen, especially in terraced or semi-detached homes. It opens up the space towards the garden, creating a light-filled kitchen with bi-fold or sliding doors for a seamless indoor-outdoor connection.

Best for: Garden access, open-plan living, kitchen-diner spaces
Tip: Add rooflights or a glazed roof to maximise natural light.

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2. Side Return Kitchen Extensions

If you have an unused alleyway or narrow side space, a side return kitchen extension can be a game changer. It fills in the wasted side area to widen your existing kitchen without sacrificing garden space.

Best for: Victorian and Edwardian terraces
Tip: Use skylights to brighten the central area of your home.

3. Wraparound Kitchen Extensions

This combines a rear and side return extension, offering the largest space gain. It’s perfect for creating a large kitchen with a dining area, island, and even a lounge zone.

Best for: Maximising space and value
Tip: Use zoning to create functional areas within the open-plan layout.

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4. Open-Plan Kitchen with Island

One of the most sought-after modern kitchen designs is the open-plan kitchen with a central island. It’s great for cooking, casual meals, and entertaining.

Tip: Ensure there’s enough circulation space (at least 1m) around the island for smooth movement.

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5. Kitchen Extensions with Utility Rooms

If you’re extending your kitchen, it’s smart to incorporate a small utility room. This keeps noisy appliances out of the main space and improves layout flow.

Best for: Family homes or busy households
Tip: Use pocket doors to save space between the kitchen and utility area.

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Kitchen Extension Costs

Kitchen extension costs vary depending on size, materials, and finishes. Here’s a general guide for Greater London:

Extension TypeEstimated Cost (Build Only)

Side Return Extension£50,000 – £70,000

Rear Kitchen Extension£60,000 – £90,000

Wraparound Kitchen Extension£80,000 – £120,000+

These figures exclude kitchen fittings and finishes but cover structural work and basic construction.

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At Draw Plans, we provide kitchen extension plans starting from just £795 + VAT. This includes full architectural design tailored to your space, needs, and budget — plus expert advice on maximising value.

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Planning the Perfect Kitchen Layout

Your kitchen extension’s success depends heavily on the layout. Here are key tips to get it right:
 

1. Start with the Triangle

The kitchen triangle (sink, hob, fridge) is a timeless design rule. Keep these three points close, but not cramped, to enhance efficiency.
 

2. Zone Your Space

Divide your kitchen into zones: cooking, prep, dining, and relaxing. This makes a large space feel more organised and functional.
 

3. Think About Natural Light

Glazing, skylights, and open corners can make your kitchen brighter and more welcoming. Consider the position of the sun throughout the day when planning your layout.
 

4. Storage Is Key

Plan integrated storage into your layout from day one. Floor-to-ceiling cabinets, island drawers, and pantry spaces will keep the kitchen tidy and practical.
 

5. Flow with the Rest of the House

The kitchen extension should feel like a natural continuation of your home. Align flooring, finishes, and ceiling levels where possible.

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Why Choose Draw Plans?

• ✅ Expert architectural designers with local knowledge of Greater London

• ✅ Custom kitchen extension plans starting from £795 + VAT

• ✅ Fast, friendly, and professional service

• ✅ Planning permission and building regulation drawings handled

• ✅ Clear fixed pricing with no hidden costs

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Ready to Design Your Dream Kitchen Extension?

Whether you're still gathering kitchen extension ideas or ready to start planning, Draw Plans is here to help. We’ll guide you from first sketch to approved plans — all for an affordable, fixed price.​​​​​​​

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What Our Clients Say

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"Our new kitchen has changed the way we live."
"Draw Plans made the entire process so easy. They understood exactly what we wanted from the start, and the kitchen extension plans were spot on. We now have a light-filled kitchen-diner that opens onto the garden — it’s the heart of our home!"
— Sophie & Mark, Walthamstow

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⭐⭐⭐⭐⭐

"From cramped and dark to open and bright!"
"We had no idea how to make the most of our side return, but Draw Plans came up with clever solutions we’d never considered. The final result is stunning. The plans were approved quickly and the space works beautifully for our family."

— Jason, Clapham

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⭐⭐⭐⭐⭐

"Professional, affordable, and genuinely helpful."
"We were worried about the cost and complexity of our kitchen extension, but Draw Plans delivered fantastic value. They were transparent, knowledgeable, and always available for advice. Highly recommend them to anyone planning an extension in London."
— Priya & Naveen, Finchley

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⭐⭐⭐⭐⭐

"They made our dream kitchen a reality."
"We had seen a lot of kitchen extension ideas online but didn’t know where to start. Draw Plans guided us through the whole process — from design to planning permission. The layout they created flows perfectly and looks incredible."
— Emma, Chiswick

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