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Planning Permission

Through a unique combination of engineering, construction and design disciplines and expertise.

Welcome to Studio20 Architects

Obtaining planning permission is a crucial stage of any residential development project. It is a complex yet inescapable part of the process when you are extending your house or constructing a new building. And no one can tell you for sure if a planning application is likely to be approved for your proposed development. First of all, you need to find out whether your projects need planning permissions, and which type in particular. After that, you need to prepare and submit the application. The whole process can be overwhelming. That’s why it’s better to leave it to experienced architectural planners. At Studio 20 Architects, we offer specialist advice and planning permission services. We have a precise, proven multi-step planning system in place. We created our unique approach based on practical experiences. You can rest assured that we will guide you through the entire process, from initial consultation to completion. Feel free to contact us to get a free quote..

Basement conversion

What Is Planning Permission?

Planning permission refers to authorisation from your local authority for a proposed development. It has many categories and it’s always a good idea to check your future endeavours with an experienced architect or architectural planner when building a new dwelling or extending a house.

It is usually required when you plan to do major changes to your existing house or build a new one. You need to submit a planning application with a full set of drawings, including floor plans, location plans, elevations, sections, etc. Your local council will then assess the project against the planning laws and either approve or reject it.

Type of Planning Permission We Cover

Householder Applications – If your development project does not fall within the Permitted Development guidelines, you will need to submit a Householder Application. It is used for projects like wrap-around extensions, single-storey extensions, double-storey extensions, and loft conversions.. Full Planning Applications – These applications are used for projects that involve doing any major changes to the exterior of a flat, flat conversions, etc. They include all existing drawings of the property, a detailed Design and Access statement, site plan and block plan, all proposed drawings, heritage statement, flood risk assessment, arboricultural report, application forms, notification letters, etc.

Basement conversion

Why Choose Studio 20 Architects for Planning Permission Services?

We have a team of expert in-house interior designers, architecture planning consultants, and architectural planners who are well versed in planning policies. We have strong connections with local councils. Our planning permission expertise covers extensions, flat conversions, HMO, Change of Use, new build house, and more.​We pride ourselves on our level of professionalism and excellent customer service. At every step, we will keep you informed about the process. We will provide you with expert advice and help you make informed decisions regarding your project.

Let's Get Started

If you are thinking of building a new dwelling or extending your existing house, please feel free to contact us. We can help you get Planning Permission for your proposed development with ease. You can call us directly or use our contact form to get in touch with us.

We will arrange a consultation at a time that is convenient for you. Our experts will listen to your ideas, goals, and vision and then make honest and practical recommendations. If you have any questions about our services or process, please don’t hesitate to contact us.

Here’s what our clients have to say.

Popular Questions, you may be interested in

If you are looking to newly build,change the use of your land or building, or for a house extension this means you will need planning permission. A Planning Application includes details of your proposal which is then sent to the Local Planning Authority. LPAs will need to check you application and grant it so that you may start works. Quite simply, it is a way that your local council can check that the proposed development is designed with sensitivity to local guidelines and is suited to the relevant site, street, and area. If we did not have this system in place, we could find buildings that have no uniformity in their designs, form or function. This way, the United Kingdom which is rich in heritage can keep your home as part of it’s identity whilst allowing you to make exciting and necessary changes.

Local Planning Authorities are generally the local council borough and these LPAs will have guidelines and links to explain what are within your rights to make changes to your property. They are usually receptive to pre-applications, but since three years ago, most of the London Boroughs have adopted a fee for their pre-application advise. A good thing to know, no matter if you are doing a small single storey rear extension, a loft converson or a large new build – most LPAs take approximately 6 to 8 weeks to make a decision on your project.

Single-Storey Rear Extensions: The good news is, if you live in a terrced or semi-detached house in 2020, Local Planning Authorities have relaxed the rules and allow for extensions to go to 6 meters . If you live in a detahced house, single storey rear extensions can be up to 8 meters in depth. Just be aware that if your property type is a flat, maisonette or in a conservation area, then you will need full planning permission.

Side Extensions: Side extensions fall under permitted developent if they do not extend more than half the width of the original house. You can extend a maximum of 3 meters as long as it is a single storey extension and does not extend pas the front elevation.

Double-Storey Extension: As of October 2019, new rules are being phased in which will allow homeowners to build extensions onto detached homes without requiring planning permission, under the usual rules of permitted development. This will make adding a two-storey extension to your home no more complicated than having a loft conversion. This doesn’t mean that there is no paperwork involved in undertaking a two-storey extension, but it will make obtaining permission for the extension much simpler.

Loft Extensions: Roof extensions/should be set back, as far as reasonably feasible by at least 20cm from the eaves, unless it is a hip or gable roof (measure the 20cm along the plane of the roof). The roof extension should not hang over the wall of the house.To be a Permitted Development any additional roof space created must not exceed these volume allowances: 40m3 on terraced or emi-detached houses, 50m3 on detached houses.

If you believe that your property falls under permitted development, the best way to ensure a positive result is to consult the advice of an Architect to ensure that your extension follows these rules which are applicable to all extensions:

  • Materials should match the existing house
  • No raised platforms, balconies, or terraces
  • Single storey extensions should not be more than 3 meters high
  • Must not be taller than the existing building
  • The extension should not take more than 50% of garden space

Permitted Development Rights are a set of policies which allow homeowners greater freedom to add value to their home whether it’s increasing your property price or simply to add floor space. By acting upon these rights you can extend your property to a certain degree, without the need for Full Planning Permission, which can be a more expensive and time-consuming process, as long as you comply with relevant rules.

This generally applies to the single-storey side or rear extensions, loft conversions, front porches, double storey extensions, outbuildings, solar panels, skylights of dormer windows and new windows or doors. However, even Permitted Development has its restrictions and does not cover double-storey extensions, larger loft conversions, flats or properties in conservation areas. Regardless, even if you meet all the requirements for Permitted Development, you will still need to submit your plans to council which they will need to check, and approve.

For a full planning application, you will need good knowledge of the local guidlines, an appropriate design and a full set of accurate architectural drawings. Many London Architects will do drawings but not offer extensive planning advice and submit your application on your behalf. On the other hand, Planning Counsultants have expert knowledge of regulations and can therefore play a vital role in obtaining permission for projects with complex needs, but where do both options leave you after your application has been granted…or refused? At Extension Architecture we understand that planning and building involves a lot of head-scratching, that’s why we guide you through the whole process, every step of the way. Extension Architecture specialises in design AND planning consulting and do not charge for submission and liaison with the council. We design, submit planning applications, building regulations with our in-house engineer, construct with trusted buiilders and offer creative interiors with our very own kitchen range. Why bother with the hassle if we can do it all for you?

Building Regulation drawings and control are very important because they insure the safety of people in buildings. Building approval means that your building complies with the national set of standards to protect people’s health and safety in and around buildings. Some examples of what building regulations include are structural calculations, fire-safety, insulation, damp-proofing, foundations, heating, ventilation and accessibilty. Once you have received planning permission, building regulation drawings will have to then be submitted and approved before you can start construction. Just remember, cow-boy builders are always risky business and Local authorities have power under the Building Act 1984 to enforce non-compliant building work altered or removed.

Whether you are considering an extension, a plot development or a conversion, we are here to assist you in gaining LPA approval, maximising the potential of your project which in turn increases the value of your home. At Extension Architecture we offer bespoke packages to suit your budget, ensuring you get the perfect solution for you.

We always provide 2D architectural drawings which detail the design in question. In more complex cases, we can provide 3D visualisations to bring your concepts to life and accurately display the proposed works.

A site assessment will be carried out, either in person or remotely, which will gather information on the existing site. After this, initial drawings are produced and options are discussed with our consultants which leads to amended drawings being made until both parties are happy. At this stage, the application is submitted to the local authority.

All you need to do is fill out our online form which provides us with more information about your project, this way we can get back to you with a more accurate quote. If you would prefer to speak to one of our planning consultants directly, you can call us on 0203 409 4215.

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