House Rear Extension Company
Transform Your Home with a Stunning Rear Extension
Looking to enhance your living space with a single-storey rear extension, double-storey rear extension, or a rear home extension?
At Growchance, we specialise in building high-quality extensions tailored to UK homeowners.
Whether you’re dreaming of a modern open-plan living area or extra bedrooms upstairs, our expert builders deliver seamless results for your back of house extension needs.
LAST UPDATED: JANUARY 18, 2025
What We Offer for Your Rear Home Extension Project
Home Rear Extension Services
1. Custom Design and Planning
Tailored architectural designs and planning services to maximise your space and meet your unique requirements.
2. Planning Permission and Building Regulation Assistance
Expert guidance on navigating UK planning permission and building regulations, ensuring your project is fully compliant.
3. Structural Engineering
Professional structural assessments and engineering solutions to ensure your rear extension is safe, durable, and built to last.
4. Single-Storey and Double-Storey Extensions
Construction of both single-storey and double-storey rear extensions to suit your home’s needs and enhance its functionality.
5. Indoor-Outdoor Integration
Installation of bi-fold doors, skylights, or sliding glass panels to seamlessly connect your indoor and outdoor spaces.
6. Complete Project Management
End-to-end management of your rear extension project, including procurement, construction, and final finishing touches.
Our Home Rear Extension Process
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Free Consultation: We’ll visit your property, discuss your goals, and provide a no-obligation quote.
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Design & Planning: From single-storey rear extensions to complex double-storey rear extensions, we create designs that maximise your home’s potential.
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Planning Permission Support: Many rear home extensions fall under permitted development rights, but we’ll handle all planning applications if needed.
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Construction: Our skilled team work efficiently to deliver your project on time and with minimal disruption.
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Completion: Enjoy your new space – inspected, finished, and ready to use!
What Can a House Rear Extension Do for You?
A rear home extension is one of the most effective ways to transform your property. Here’s how it can benefit you:
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Add More Space: Expand your kitchen, living room, or create a new dining area with a single-storey rear extension.
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Increase Property Value: A well-designed double-storey rear extension can boost your home’s value by up to 20%.
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Enhance Natural Light: Flood your home with light using skylights, floor-to-ceiling windows, or sliding doors.
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Flexible Options: Whether it’s a back of house extension or a full redesign, we’ll ensure your space is functional and stylish.
Key Rules for Rear Extensions under Permitted Development in the UK
General Criteria:
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Single-Storey Rear Extensions:
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Must not extend beyond the rear wall of the original house by:
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4 metres for detached houses.
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3 metres for semi-detached or terraced houses.
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Maximum height is 4 metres.
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Eaves height must not exceed 3 metres if within 2 metres of a boundary.
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Double-Storey Rear Extensions:
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Must not extend more than 3 metres beyond the rear wall of the original house.
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Must be at least 7 metres away from the rear boundary.
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Materials must match the appearance of the existing house.
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Side-facing windows must be obscure-glazed (to maintain privacy).
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Overall Coverage:
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No more than 50% of the land around the original house can be covered by extensions or other buildings.
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Additional Considerations:
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Height Restriction: Extensions must not exceed the highest part of the existing roof.
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Original House: Permitted Development applies to the original house as it stood on July 1, 1948 (or when it was built if later). Previous extensions are excluded from calculations.
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Conservation Areas: In National Parks, Areas of Outstanding Natural Beauty, or Conservation Areas, permitted development rights may be restricted or removed.
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Listed Buildings: Extensions to listed buildings always require planning permission.