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Extension Plans

Expert Residential Design

Architects Greenwich - Extension Plans offer a fast, affordable, one-stop solution for all of your planning permission and building regulation needs!

Architects
Greenwich

Welcome to Extension Plans, your trusted team of architects in Greenwich, specialising in affordable, high-quality residential designs. From rear extensions  and side extensions to loft conversions and full-home transformations, we’re here to turn your vision into reality with a personalised, Greenwich-focused approach.

Experience a new standard of architectural design with our all-inclusive, cost-effective architectural service. 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 Partner

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.

Our Services

Architects Greenwich - We pride ourselves on delivering an all-inclusive residential architecture service to our clients, with a vast amount of experience, with rear extensions, loft conversions, and outbuildings.

By working with our architects in Greenwich, you eliminate the need to outsource various components of your project, streamlining the entire architectural process under one roof.

back extension with kitchen design and building regulations

Architectural Design Drawings

Our experienced team has worked on every type of residential alteration throughout the years and we are excited to share our knowledge with our customers!

side extension and rear extension completed with planning permission approval

Building Regulations

Our team excels at creating precise, compliant drawings, ensuring alignment with safety, thermal, and structural requirements.

Dual pitched rear extension design with building regulations

Structural Calculations

Once our architects have crafted your vision into architectural drawings, our engineer steps in to produce precise structural calculations.

interior renovation project completed with building regulations and building control approval

Party Wall Services

Party wall notices are a crucial legal step, and as part of our comprehensive architectural services, we include the preparation of the party wall notices within our process.

Architects Greenwich

Book a Free Consultation With One Of Our Experts

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Completed projects

We have experience with every property type

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Plan Turnaround

Get your project started without delay

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5 Star Reviews

We put our customers first

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Years experience

We have a vast amount of experience in this area

Architects Greenwich

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!

Rear extension with planning permission approved, created by architects

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.

Architects Greenwich – 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 

Unlock the potential of your property in Greenwich

Schedule a free consultation! We would love to offer free advice, discuss your design ideas or get things moving with your project
rear extension interior design, kitchen extension

Architects Greenwich

What Sets Us Apart?

  • Features

  • Traditional Architects 

  • Online Competitors 

  • Fixed Price

  • Immediate Start

  • Planning Design Drawings 

  • Flexible project timeline

  • Qualified Architects 

  • Submission of all relevant applications

  • Building Regulation Drawings 

  • Advance Drawing Technology

  • Flexible Remote Meetings 

  • Ideas & Updates - Blog

    FAQs

    Our design process begins with an initial consultation with your dedicated designer. We will discuss your vision, requirements and we will provide ideas for your design based on previously completed projects. From there, we move through conceptual design providing a first draft plan for your consideration. Following this we can revise the plans in any way you like to ensure you a completely happy with the design. 

    The timescale of a project differs, depending on the proposal. We can visit your property within a couple of days and have the first draft plans with you in roughly 14 days. 

    In some cases, building work can begin within a couple of weeks. In others, the timescale can be up to 4 months, depending on your project’s requirements. 

    With over 7 years of collaboration with the local council, we’ve built a trusted relationship with their planning officers and are well-versed in their guidelines. This expertise ensures a smooth and efficient planning process for your project.

    Yes, we employ fully qualified architects within our design team to ensure our plans are created to the highest possible standard. 

    Yes, we work with a dedicated team of experienced engineers who take care of all structural calculations and beam specifications. This allows us to manage every technical detail, so you won’t need to outsource this essential service.

    Yes, we organise all necessary applications on our customer’s behalf. We will submit the required application and act as the agent throughout the process to ensure approval is received as swiftly as possible

    Yes, we create our plans with industry-leading software and are able to create 3D images to allow you to accurately visualise your design. 

    In most cases, we have trusted building contractors that we have worked with in your area, in the past and we would be happy to organise build quotations for you to consider 

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