Are you looking for residential extensions in London? Our RIBA local architect services works throughout Hounslow, Twickenham, Richmond, Kingston Upon Thames, Teddington And Throughout London.

At Trimble Architects Ltd, our projects vary in scale and complexity, as we work across North and South West London and Surrey on refurbishments, house extensions, new builds and change of use. 

We're a leading architectural and structural planning business with a whole host of experienced and qualified architects on board to maximise the fair amount of space and value. 

We aim to assist clients from the first stages of the project right through to the very finish, either in sequence or as isolated steps. For those interested, our services include a wide range of works, such as:

• Project inception
• Planning application free consultation and submission
• Building regulations and calculations
• Feasibility studies
• Tender adjudication
• Contract administration
• Construction and site supervision
• Free site surveys

Regardless of how big or small your project is, all teams involved in our fantastic London architecture service can provide you with close guidance and support throughout the entire plan and build process as dedicated project managers. We'll do so for a fixed price that suits your budget.

On-Site Assessment

At Trimble Architects Ltd, our exceptional team of London-based architects have the skills and qualifications to carry out vital on-site assessments for your desired extension throughout London and Surrey. 

Typically, these consultations are hosted by experienced builders, contractors or extension designers, both at the same time, or somebody with both titles. 

An assessment can take up to 2 hours to evaluate each of the necessary limitations on your site, alongside any impartial advice that would help you enhance your project or give you design ideas of what to reconsider for a more seamless transition.

During this inspection, you'll discover the following:

• Whether or not your extension is achievable
• How long your extension build will take
• Whether your specific project needs planning application and how you can obtain it
• How your project building can best adhere to the regulations of your area
• You'll gain a rough idea of how much your extension budget will amount to
• If there are any structural or heat-loss calculations that you need to consider

Planning Permission

Obtaining planning permission for a brand-new extension may initially seem daunting and complicated; however, many amendments have been made in recent years to the rules and regulations. 

As long as you have floor plans and architectural drawings that are thorough, detailed and fit the criteria of your local area from a trusted and qualified professional before applying, you're likely to gain permission. 

With the introduction of permitted development rights, there has been an expansion of the work you can complete on your house without the need for planning office approval. Always remember that if your home or property is located in a conservation area or your home is considered a listed building, you'll need planning permission. It might be a little trickier to obtain it.

Regardless of whether or not you'll require planning permission, you'll most of the time need to gain approval from building control using accurate building regulation drawings that depict the measurements, materials, scale and thorough analysis of the groundworks, drainage and the impact on the environment. 

Contact us today at Trimble Architects Ltd; our professionals will be on the end of the line to provide you with the necessary assistance in completing any planning permission applications or discussing a floor plan that you wish to take to your local council. 

If you have any projects where you are unsure whether or not they would require planning permission, give us a call; we may be able to help with all the answers you require. Otherwise, we suggest contacting your local authorities or planning offices as every location is different!

You should be aware of various types of extensions before starting your project. These are some of the most popular:

Single Extensions

Single-storey house extensions are usually built onto a specific part of your household; whereabouts, one or multiple sides are attached to an area of your building. They include any basement you have and the ground floors.

Single-storeys will always need building control, yet they don't always require planning permission to have built. 

Many single-storey extensions are included under Permitted Development Rights. Yet, it's still paramount to ensure that the extension you build accurately matches and complies with the regulations of your area.

You can turn your single-storey extension into whatever room or use you desire, for example, a home office, dining room, utility room, playroom, new bedrooms for a growing family, guest room, or kitchen extensions. 

There are many options, depending on the size of your extensions, the impact it may have on your neighbours and how your new roof will work alongside your existing property. When installing a one or multiple-storey extension onto your current property, you want to assess other difficulties you could encounter, such as the position of your drainage system, the placement of chimneys and whether you require excavations to complete the job.

Double Extensions

Professional builders have the expertise to install double-storey or multi-storey extensions onto any part of your existing home to add any additional room you desire. 

For example, if you're looking to add another dining room with impressive ceiling height, bedroom or bathroom, we recommend implementing a high-quality double extension.

The complex nature of the build tends to mean that overall costs are much higher than a single-storey house extension. You'll find that this also means your neighbours may experience far more disruptions, as the building work is more extensive. 

Due to its larger scale and much higher value, double-storey house extensions require planning permission from local councils and planning consultants before you can go ahead. It's also helpful to remember that two-storey extensions can only be completed for detached or semi-detached homes with some garden or side plot that allows additional building space. 

It would be pretty challenging to attempt a double-storey extension for terrace houses and create a great deal of disturbance.

Wrap Around Extensions

Wraparound extensions are skillfully created when architects combine rear extensions and side return extensions to form an L-Shape that wraps around the back of your household. 

These will typically involve building a side wall closest to your neighbouring border and moving any rear wall into the rear of your garden to create a much broader L-Shaped house extension. 

Wraparounds are a fantastic choice for those who wish to remodel their entire floors, add further space for a dining room, create a bedroom or guest room, increase kitchens' size, and for living room extensions. They curate and add space, filtering natural light to illuminate the area.

Side Extensions

When you have enough space within your household, a single-storey rear or side extension can change your home's entire outward appearance. 

Such extension ideas include creating open-plan areas that you can utilise as dining, extra living space or combined kitchen area. 

Alongside internal property alterations, for example, to open up a room to your back garden for the family to enjoy and allow more natural light.

With the option of a side extension, you can massively benefit from the additional space it will add to your household. Implementing a more versatile space will make your property more attractive to potential buyers, adding significant value. 

A skillfully designed and constructed side extension will increase the space within your room, and you can utilise the newfound space to reorganise or remodify the interior. We're confident that our architects will work hard and work with you closely to ensure your side extension is well-designed to feel like a natural part of the house.

What is a planning application?