Home Extension Design Made Simple

Our specialist architectural designers can save you time, money, and effort with our fixed-price packages for home extension design. Whether you're planning a house side extension or looking for a single storey extension, we provide comprehensive solutions tailored to your needs.

Reach out to us today for a seamless extension project. From the initial design phase with our experienced in-house team to the complete tender pack, we ensure a smooth and efficient process. We take care of all planning permissions, building regulation drawings, structural engineering calculations, allowing you to relax and watch your vision come to life.

Don't wait any longer - contact us now to schedule your free consultation!

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)

Design & Planning

£595
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

£1,435
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

£1,795
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)

Design & Planning

£795
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

£1,995
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

£2,215
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

Have a Project in Mind? Let’s Do It!

Book a free consultation to get your project started

Our customers save £3,000* on average using us instead of traditional architects. Let’s start planning what you’ll do with that extra saving!

*based on traditional architect fee of 7.5% for average extension cost of £50k

Why Choose BAYA Design?

Experienced Designers

Connect To An Experienced Designer

You will be put in touch with one of our designers straight away, and they will help guide you through the process of preparing your architectural design package. Our experts specialise in house extension design, so you can be sure that your single storey extension or double storey extension will meet your requirements.

Fast Delivery

Fast
Delivery

We aim to carry out a full survey the same week as we receive instructions and have everything ready for your planning application or certificate of lawfulness within 14 days, ensuring a smooth and efficient process that meets your needs promptly and professionally.

In-house Expertise

In-House
Expertise

Our team of specialist architectural designers has unrivalled experience in both the design and construction phases of residential projects. For the past 5 years, we have been delivering a first-class service to clients all over the UK, excelling in house extension design and loft conversion design.

Home Extension

Why Get A House Extension?

According to a study by Nationwide, adding a home extension can increase the value of your home by as much as 21%.

An extension can be a brilliant way to gain valuable space without the stress and cost of uprooting your family by moving home. With well-thought-out plans, you can create the perfect house side extension to suit your needs.

Our extension drawing package is tailored for your personal needs, whether that’s to accommodate an additional bedroom, home office, or simply enhance the existing space to better suit your lifestyle. Our expert team will provide detailed architectural building regulation drawings to ensure your extension project runs smoothly from start to finish

Types Of Extensions

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 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 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 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 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 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 a property, 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.

Portfolio

Woodlands Park Road
Canterbury Road
Harold Road
Michaels Road

Book a free architectural advice call

We offer a free 30 minute video consultation to help you get your project started!

How It Works

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.

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.

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