Home Extension Design Made Easy in London

Save time, money, and effort with our fixed-price packages designed specifically for London homeowners.

Modern extension with glass wall

Pricing

  • Single Storey Extensions
  • Double Storey Extensions

 

  
 
Full Measured Survey
Design Consultation at the Property
Preparation of Design Options
Drafting of Detailed Design
Free Design Amendments
Preparation and Submission of Planning Application
Structural Engineer Report and Calculations
Detailed Structural Drawings for Building Regulations Approval
Production of Detailed Schedule of Works
Fast Track Structural Service (Save 4 Weeks)

Planning

£715
Draft Design and Submit
Planning Application
Full Measured Survey :
Design Consultation at the Property :
Preparation of Design Options :
Drafting of Detailed Design :
Free Design Amendments :
Preparation and Submission of Planning Application :
Structural Engineer Report and Calculations :  
Detailed Structural Drawings for Building Regulations Approval :  
Production of Detailed Schedule of Works :  
Fast Track Structural Service (Save 4 Weeks):  

Ready to Build

£1,725
Planning Application, Structural Engineer Calculations, Building Control Drawings and Schedule of Works
Full Measured Survey :
Design Consultation at the Property :
Preparation of Design Options :
Drafting of Detailed Design :
Free Design Amendments :
Preparation and Submission of Planning Application :
Structural Engineer Report and Calculations :
Detailed Structural Drawings for Building Regulations Approval :
Production of Detailed Schedule of Works :
Fast Track Structural Service (Save 4 Weeks):  

Fast Track

£2,155
Fast Track your Tender Pack
and start obtaining Fixed Price Quotations
Full Measured Survey :
Design Consultation at the Property :
Preparation of Design Options :
Drafting of Detailed Design :
Free Design Amendments :
Preparation and Submission of Planning Application :
Structural Engineer Report and Calculations :
Detailed Structural Drawings for Building Regulations Approval :
Production of Detailed Schedule of Works :
Fast Track Structural Service (Save 4 Weeks):

 

  
 
Full Measured Survey
Design Consultation at the Property
Preparation of Design Options
Drafting of Detailed Design
Free Design Amendments
Preparation and Submission of Planning Application
Structural Engineer Report and Calculations
Detailed Structural Drawings for Building Regulations Approval
Production of Detailed Schedule of Works
Fast Track Structural Service (Save 4 Weeks)

Planning

£955
Draft Design and Submit
Planning Application
Full Measured Survey :
Design Consultation at the Property :
Preparation of Design Options :
Drafting of Detailed Design :
Free Design Amendments :
Preparation and Submission of Planning Application :
Structural Engineer Report and Calculations :  
Detailed Structural Drawings for Building Regulations Approval :  
Production of Detailed Schedule of Works :  
Fast Track Structural Service (Save 4 Weeks):  

Ready to Build

£2,395
Planning Application, Structural Engineer Calculations, Building Control Drawings and Schedule of Works
Full Measured Survey :
Design Consultation at the Property :
Preparation of Design Options :
Drafting of Detailed Design :
Free Design Amendments :
Preparation and Submission of Planning Application :
Structural Engineer Report and Calculations :
Detailed Structural Drawings for Building Regulations Approval :
Production of Detailed Schedule of Works :
Fast Track Structural Service (Save 4 Weeks):  

Fast Track

£2,655
Fast Track your Tender Pack
and start obtaining Fixed Price Quotations
Full Measured Survey :
Design Consultation at the Property :
Preparation of Design Options :
Drafting of Detailed Design :
Free Design Amendments :
Preparation and Submission of Planning Application :
Structural Engineer Report and Calculations :
Detailed Structural Drawings for Building Regulations Approval :
Production of Detailed Schedule of Works :
Fast Track Structural Service (Save 4 Weeks):

Samples

Got a Project in London? Let's Get Started!

Book a free call to kick off your home extension project.

On average, our customers save £3,000 compared to traditional architects. Think about how you can use that savings to spend elsewhere on your London home!

*Savings are based on the typical 7.5% fee charged by architects for an average extension cost of £50k.

Portfolio

Why London Homeowners Choose BAYA Design

Experienced Designers

Work Directly With Experts

You will be connected with an experienced designer who understands the unique planning requirements of London Boroughs and will guide you through the entire design process.

Fast Delivery

Quick Turnaround for Your London Project

We aim to complete a full survey within a week of your booking and have all plans ready for submission in just 14 days.

In-house Expertise

Trusted by Homeowners Across London

With over 5 years of experience delivering exceptional designs and managing residential projects across London and the UK, our team has the expertise to make your vision a reality.

Home Extension

Why Add an Extension to Your London Home?

According to Nationwide, a home extension in London can increase your property’s value by up to 21%

Extensions offer a cost-effective way to gain extra space, avoiding the stress of moving in London’s competitive housing market.

Whether you need an extra bedroom, a home office, or simply want to improve your existing layout, an extension can transform your space to suit your lifestyle.

Types of Extensions Perfect for London Properties

Side Return Extension

Side Return Extension

A side return extension widens the ‘outrigger’ of your home to the full width of the property. They are most commonly found on Victorian properties in London due to their L-shaped footprint, although they can be built on properties from any era. Side return extensions have become hugely popular as they are a cost effective and small-scale project which has a big impact on the space in your home.

Wrap around Extension

Wrap Around Extension

A wrap around extension is essentially a side return extension combined with a rear extension. Not only do they add a significant amount of floor area to your London home but the space they create is perfect for open plan living. So, if this is what you want you’re after, a wrap extension may be the best option for you.

Double Storey Extension

Double Storey Extension

Two storey or double storey extensions can be located to the side or rear of a London property. These two options can also be combined to create a double storey wrap around extension. The additional space to both ground and first floors can allow for increased living area as well as an additional bedroom. They are most commonly found on semi-detached or detached houses.

Side Extension

Side Extension

As you might assume, side extensions are made to the side of a London house, typically into a small alley which runs alongside the house to the garden. These alleys are a feature of many semi-detached houses. The advantage of a side extension is that it adds significantly to the size of your house, without affecting garden space.

Rear Extension

Rear Extension

As the name suggests, rear extensions project outwards from the rear elevation of your London home. They enlarge the space on your ground floor and are ideally suited for kitchens or living areas. Adding bifold doors can provide a fantastic indoor/ outdoor entertainment space for barbeques and parties. Generally, rear extensions are better suited to properties with ample garden space.

Single & Double Storey Extension

Single & Double Storey Extension

This is a combination of a single storey and a double storey extension. They can be located to the side or rear of properties in London, or both to create a wrap around. A single and double storey extension can facilitate an open plan kitchen and living area on the ground floor and an additional bedroom on the first.

Book a free architectural advice call

We offer a free 30-minute video consultation to kickstart your London project.

Our Simple Process for London Homeowners

Measured Survey

1. We survey your home

We arrange to carry out a full measured survey of your home. This gives us all the measurements and information we need to move to the next step, ensuring total accuracy and quality for your drawings.
Video Conference

2. Design Meeting

Once we have all the measurements and information we need we will arrange to have a video conference/screen share with you. This will take place at a time of your convenience. It will enable us to work out how to complete the architectural design.
Relax

3. Relax and sit-tight

You can now relax while our expert designers get down to work. We always aim to finish your planning drawings within 14 days, but we can do it more quickly depending on the complexity of your scheme.
Drawings

4. Receive your drawings

We email you PDF Drawings for your approval. Any amendments or corrections be done for free. Our drawings will contain everything you need to obtain planning permission or a certificate of lawfulness including site location plans and evidence of permitted development compliance where appropriate.

Get In Touch


About

BAYA Design provide a straight-forward and affordable online architectural design service for UK home owners, looking to extend, refurbish or convert their homes. Our service is equally suitable for those wanting to build a brand new dwelling. We offer fixed fee architectural design packages so you can have your building project properly and competitively priced by your chosen builder, or sent out to tender if you haven’t yet got a builder a in mind.

Contact

Email : info@bayadesignlondon.co.uk

Office: 0800 998 7701

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