Bungalow Extensions: Costs, Ideas & Expert Plans from Draw Plans

Bungalows are a popular choice for homeowners across Greater London thanks to their spacious layouts, accessibility, and renovation potential. If you’re looking to maximise your home’s footprint without moving, a bungalow extension could be the ideal solution. At Draw Plans, we offer affordable and professional architectural plans for bungalow extensions starting from just £795 + VAT.

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In this guide, we’ll explore everything you need to know about extending a bungalow—from layout tips and design ideas to planning advice and estimated costs.

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Why Extend a Bungalow?

Bungalows offer fantastic scope for extension due to their single-level design, wide plots, and relatively simple roof structures. Whether you want to add more living space, a modern open-plan kitchen, or an extra bedroom, a well-designed extension can transform your home and add considerable value.

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Types of Bungalow Extensions

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1. Rear Extensions

Perfect for creating a larger kitchen, dining, or living area. They open up the back of the property to connect with the garden.

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2. Side Extensions

Ideal if your bungalow sits on a wide plot, adding space without impacting the garden.

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3. Wraparound Extensions

A combination of side and rear extensions for a dramatic transformation.

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4. Dormer or Loft Conversions

Technically not a ground-level extension, but a great way to turn unused roof space into bedrooms or offices.

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5. Garage Conversions

Convert an integrated or detached garage into a habitable space.

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Bungalow Extension Costs in Greater London

Costs can vary based on design, size, and materials, but here are some average estimates:

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• Design & Planning Drawings: From £795 + VAT (with Draw Plans)

• Construction Costs: Typically £1,800 to £2,500 per square metre

• Planning Application Fees: £202 (if required)

• Structural Engineer Fees: £500 to £1,200

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For a 30m2 rear extension, expect total construction costs to range between £54,000 to £75,000, excluding VAT and professional fees.

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Planning Considerations for Bungalow Extensions

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1. Planning Permission

Many bungalow extensions fall under permitted development rights, but it’s always best to check. We can advise and apply on your behalf if planning is required.

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2. Building Regulations

All extensions must comply with UK Building Regulations. Our plans are tailored to meet all structural and safety requirements.

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3. Neighbouring Properties

Be mindful of overlooking, overshadowing, and party wall agreements.

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Bungalow Extension Layout Tips

• Open Plan Living: Knock through internal walls to create larger kitchen/diner/living zones.

• Natural Light: Add rooflights, bi-fold doors, or large windows to flood the space with daylight.

• Flow & Function: Think about how you move through your home. Make the layout feel intuitive.

• Future-Proof Design: Incorporate wide doorways and accessible bathrooms for long-term comfort.

• Maximise Storage: Use clever storage solutions like built-in cupboards or under-bench drawers.

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Bungalow Extension Ideas

• Garden-Facing Lounge: Create a new living area that opens directly onto the garden.

• Luxury Master Suite: Add a bedroom with en-suite and walk-in wardrobe.

• Home Office Extension: Dedicated workspace without taking over a bedroom.

• Kitchen-Diner with Skylights: A light-filled heart of the home.

• Studio or Annex: Perfect for guests, adult children or even rental income.

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Why Choose Draw Plans for Your Bungalow Extension?

We take the stress out of designing your extension and ensure a smooth path to planning approval:

• Architectural plans from just £795 + VAT

• Local knowledge across Greater London boroughs

• Fast, professional service

• Free initial consultation

• Planning and Building Regulations expertise

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What Our Clients Say

"Draw Plans gave us confidence from the start. They created stunning plans for our bungalow rear extension, and the council approved them with no changes needed. We're over the moon!"

- Rachel & David, Ealing

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"Excellent service at a great price. We now have an open-plan kitchen diner that has totally transformed our home. Highly recommend Draw Plans."

- Mr. & Mrs. Johnson, Bromley

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"From layout ideas to the final drawings, Draw Plans really listened to what we wanted. The process was smooth, affordable and professional."

- Joanne, Enfield

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Ready to Extend Your Bungalow?

Whether you're dreaming of a new kitchen, extra bedroom or a full transformation, Draw Plans is here to help you bring your vision to life.