02045534785 info@knrgroup.co.uk

Bespoke Garden Rooms, Outhouses & Garden Offices in Essex & London

Outgrowing your home but don’t want to move? Our expert house extension services in Essex give you the extra space you need, beautifully designed and professionally built.

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Adds Space Without Moving

Gain an extra room without the cost and stress of moving house.

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Boosts Property Value

A well-designed garden room is a sought-after feature that adds long-term value.
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Flexible Lifestyle Upgrade

Whether work, fitness, or leisure, your garden room adapts to your lifestyle.

Transform Your Outdoor Space with a Garden Room

We design and build bespoke garden rooms, outhouses, and garden offices that enhance your home and lifestyle.

Whether you need a quiet space to work, a stylish home gym, or a garden retreat for relaxing, our team will create a structure that’s not only practical but beautifully built. With expert craftsmanship and premium materials, your garden room will be comfortable, durable, and designed to last year-round.

We design and build garden rooms across:

Essex: Chelmsford, Brentwood, Billericay, Colchester, Epping, Southend, Basildon, Harlow and more
London: East London, Stratford, Hackney, Ilford, Chigwell, South Woodford, Wanstead, Leyton, Leytonstone and more

What is a Garden Room

A garden room is a fully insulated, standalone building constructed in your outdoor space. Unlike sheds or summerhouses, our garden rooms are built for all seasons — with heating, insulation, electrics, and even plumbing if required.

Garden rooms are ideal for:

  • Home offices and remote working
  • Gyms and fitness studios
  • Garden bars and entertainment spaces
  • Music studios
  • Guest accommodation
  • Playrooms and teen hangouts
  • Hobby rooms and creative workshops

Our Process

Consultation & Design

We’ll discuss your needs, assess your outdoor space, and create tailored design ideas.

Planning & Construction

We’ll guide you through permissions if needed, then handle the full build including structure, finishes, electrics, heating, and optional plumbing.

Completion & Handover

Your garden room is delivered ready to use, exactly as you imagined.

Front of house extension in Essex

Customisation Options

Your garden room can be designed with:

  • Bi-fold or sliding glass doors
  • Skylights or roof lanterns for natural light
  • Internal partition walls for multiple uses
  • Decking or veranda extensions
  • Modern or traditional cladding options
  • Integrated smart lighting and heating

Garden Room types

Garden Offices

With remote working here to stay, a dedicated garden office is the perfect solution. Escape household distractions and create a professional workspace right outside your door.

Outhouses for Multi-Purpose Use

Our outhouses can be tailored for gyms, hobby rooms, or guest suites. With electricity, internet, and even plumbing options, your space can be as versatile as you need.

Entertainment & Leisure Rooms

From garden bars to cinema rooms, we can design spaces where you can relax or entertain friends and family.

Eco-Friendly Garden Rooms

We also offer sustainable building solutions, including energy-efficient insulation, double glazing, and eco-materials for reduced environmental impact.

Questions we’re asked about garden rooms in Essex & London

Do I need planning permission for a garden room?
Most garden rooms fall under permitted development, but larger builds may require approval. We’ll guide you through the process.
Can garden rooms be used all year round?
Yes, our rooms are fully insulated with heating and electrics, making them comfortable in every season.
How long does it take to build a garden room?
On average, 2–4 weeks depending on size and complexity.
Will a garden room add value to my property?
Absolutely, a bespoke garden room is a lifestyle upgrade that makes your home more desirable.

We'd love to hear from you and discuss your project

What makes us different?

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We are a team of experts and truly passionate about every project we deliver

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We offer a comprehensive range of services to meet all your renovation needs

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We offer excellent customer service and peace of mind regardless of project size

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We always take time to listen to our clients and make their vision a reality

Client testimonials

Contact us

Ready to add a bespoke garden room to your home?

Contact KNR Group today for a free consultation and quote.
Call us or request a callback, let’s create the perfect garden space together.

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