Extension Plans

Loft Conversion Architects – Extension Plans are your local London Architects offering a fast, affordable, one-stop solution for all your planning permission and building regulation needs.

Expert Residential Design

Loft Conversion Architects

Welcome to Extension Plans, your trusted team of loft conversion architects specialising in affordable, high-quality loft conversions and extension projects. Whether you’re looking to add extra bedrooms, a home office, or a stunning new living space, our approach ensures your loft conversion is tailored to your needs and lifestyle.

Experience a new standard of architectural design with our all-inclusive, cost-effective architectural service. As dedicated loft conversion architects, we combine attention to detail with a commitment to quality, ensuring every space we create aligns with your vision and lifestyle.

Start your journey to your dream home today!

Why We're Your Ideal Loft Conversion Architect

ARB Architects

Talented architects with proven track records drive our projects.

Cost-Effective

Save money with our Budget friendly services, delivering exceptional results

All Inclusive

Don't worry about outsourcing any aspect of your project with our comprehensive service

Quick Turnaround

Progress to the construction stage with minimum delay with our streamlined service.

Loft Conversion Architects

Our Services

We pride ourselves on delivering an all-inclusive architectural service to our clients, with a vast amount of experience, with, loft conversions, loft extensions and all forms of residential improvement. By working with us, you eliminate the need to outsource various components of your project, streamlining the entire architectural process under one roof.

Loft Conversion Architects

At Extension Plans, we specialize in creating stunning loft conversions that maximise every inch of available space, transforming underutilised areas into stylish living spaces.

Our expertise ensures your loft is designed with care, blending practicality with modern aesthetics to suit your needs.

We also provide expert support with home extensions and offer a full range of residential design services to help turn your vision into reality

Here To Help With All Your Residential Improvement Requirements

Extension Projects

We also specialise in expert design for home extensions, creating bespoke spaces that enhance your lifestyle and increase the value of your property.

Architects rear extension, kitchen extension with planning permission

Internal Renovation Work

At Extension Plans, our expert internal renovation designs show that you can transform your home without the need for an extension, creating spaces that are both functional and stylish

Outbuilding Projects

At Extension Plans, we design outbuildings that are both functional and beautifully tailored to your needs

How it works

You will be matched with the ideal member of our design team, who will guide you through every step, from concept to completion!

Step 1

Step 1

Free Consultation Call

Call our office anytime or schedule a free consultation with our company director. We’ll discuss your ideas, provide design guidance, and walk you through the entire process.

Step 2

Step 2

Site Survey

Our dedicated site surveyor will visit your property and gather all the measurements and required site information

Step 3

Design Meeting

With thousands of completed projects, we have plenty of ideas to share! You’ll collaborate directly with the designer best suited to your project, who will bring your ideas to life while providing suggestions and creative solutions to ensure the design is the best it can be

Step 4

Planning Approval

Our administration department will take care of preparing and submitting all design applications to your local council. We also act as the agent during the application process to ensure approval is received as quicky as possible

Step 5

Building Regulations

We will then produce detailed building regulation drawings and organise the structural calculations, ensuring your builders can begin construction work with minimal delay

Loft Conversion Architects

Book A Free Consultation With One Of Our Experts

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Loft Conversion Architects

What Makes Us Stand Out From The Crowd

Unlimited Support

Call our office at any time to discuss your project. We are also on hand for questions from your builders until construction has been completed.

We handle everything

We have an experienced administration team to submit and handle your applications so you don't have to.

Immediate Start

We are available to start work on your project within a couple of days!

Dedicated Designers

You will be working directly with the member of our team that is best suited to your project.

Detailed Drawings

Our drawings are created with the best architectural software available ensuring your plans are created to the highest standard.

Fixed Prices

We offer fixed, competitive prices so you can budget accurately for your build.

View Some Of Our Recent Projects

Loft Conversion Architects – Our experienced team specialises in rear extensions, double-storey extensions, single-storey extensions, loft conversions, and internal renovation projects, bringing extensive expertise to every project.

What Our Customers Say

We have over 600, five star reviews across our online platforms. Check out our Trustpilot reviews here

     Excellent  
     Based on 40 reviews 
    
 
 
   
 
 
       
   Ck Hui 
 11/07/2024
 
 
 Trustindex verifies that the original source of the review is Google. Competitive pricing. Swift response. My plans have just been approved. I am happy with this company.
  
 
      
   Labina Rahman 
 30/05/2024
 
 
 Trustindex verifies that the original source of the review is Google. It has been a pleasure working with Mackenzie Petcher and Kamila (Architectual Designer) at Extension Plans UK.  They are a rear mix of professionalism, responsiveness, great value for money and skill.  We would not hesitate to recommend them.
  
 
      
   Jas Melling 
 15/05/2024
 
 
 Trustindex verifies that the original source of the review is Google. Great service from Extension Plans UK. Plans were drawn up swiftly and the whole process was much quicker than we expected, and at a reasonable price. We dealt with Joshua, Mackenzie and Philip who were all great and very responsive.
  
 
      
   nadia Hajian 
 02/05/2024
 
 
 Trustindex verifies that the original source of the review is Google. Thanks for your service. Very impressive service . Rebecca is very professional and consistently available to help. Joshua patiently change the drawings till we achieved what we liked. Phil the initial contact gave a clear quotations.
  
 
      
   Dyll Davies 
 29/04/2024
 
 
 Trustindex verifies that the original source of the review is Google. Absolutely superb service from start to finish.  The service is end to end and you are dealing with people who 1.  know what they are talkin g about and 2. seem genuinely keen to make sure you get what you want.  I cannot recommend them enough to anyone planning a building project.  Top notch - and I am a fussy beggar!
  
 
      
   Sunaina Singh 
 25/04/2024
 
 
 Trustindex verifies that the original source of the review is Google. Good experience. Value for money especially on simple projects.
  
 
      
   Alex Lambe 
 15/04/2024
 
 
 Trustindex verifies that the original source of the review is Google. Extension Plans Uk were great from start to finish, quick to respond and quick to produce drawings. Mackenzie, Kamila and Natalia were all brilliant. Alex, Kempston.
  
 
      
   Francis Walker 
 11/04/2024
 
 
 Trustindex verifies that the original source of the review is Google. I highly recommend Extension Plans UK, amazing value for money!
We have been delighted with the service and professionalism from Philip and his team, who listened to our ideas and helped us see them through to completion.
  
 
      
   RajOsteo 
 25/01/2024
 
 
 Trustindex verifies that the original source of the review is Google. Really helpful when I had issues with my original architect. Rebecca was friendly and thorough, and also chased up loose ends to make the process as smooth as possible. Would happily recommend!
  
 
      
   Richard Newlove 
 09/05/2023
 
 
 Trustindex verifies that the original source of the review is Google. A* - Excellent.