Trimble Architects

RIBA Architectural Services

Phone Number: 020 8538 9303

Mobile Number: 07785711635

Are you looking for a new build house architect in London? Our Twickenham based RIBA chartered architect offers a complete service for planning and project managing your new build project. Contact us to discuss new build house architect services for Hounslow, Twickenham, Richmond, Kingston Upon Thames, Teddington and South London.

New Build design and planning specialists

With over thirty years of extensive experience in the field, Trimble Architects UK have designed, planned and observed the building of many new-build dream homes for customers across Twickenham, Greater London and the surrounding areas. 

We have a multi-talented, expert team onboard that will assist you in curating a vast range of contemporary, modern, historical or traditional designs to adhere to a broad, diverse range of different desires, aesthetics and tastes.

All our professionals are RIBA chartered and, therefore, fully qualified to perform your construction project work.  

We ensure all design aspects are bespoke, from the interior to the exterior. We have immense pride in our services and ensure your new build homes or extension projects are unique without compromising on the environmental surroundings. 

Extensive portfolio of new builds for private customers

At Trimble Architects, we have an extensive portfolio full to the brim of completed projects, concepts and technical drawings for domestic, residential clients, and even private customers. 

New build and self-build services

The discovery phase or visit is dedicated to clarifying your building project and all its requirements; this is the stage where you will curate a preliminary implementation plan and visualise the creative ideas you have for your new house and its end result.

The pre-development stage involves aims to eliminate financial risks for clients; our goal is to store away as much money for the project to ensure you can make developmental progress as smoothly as possible. 

All project requirements and goals are realised at this point and thoroughly analysed from various perspectives, including the functionality of the project, its user interface and the optimum architecture. Your local architects are company registered and fully capable of scoping out the best implementation strategy.

Measured surveys often involve taking precise measurements of structures and sites so they can produce incredibly accurate drawings that are to-scale. They usually include an incredible specificity in terms of the level of detail, with tolerances for scale, delivery times of the materials, costs and accuracy of the aesthetic and practical features. 

These measurements are essential to the basis of your design work, especially if you run into design changes.  At the most basic, these measurement surveys will include doors, walls, windows and any level changes; for example, the height difference between the ground and first floor.

Skilled exterior and interior designers, engineers, and architects often create concept drawings for new build projects, whether commercial or domestic. They are often produced freehand, and they are a relatively quick way for you to explore your creative ideas for potential designs.

Technical drawings involve thorough and graphic representations of your new build, for example, symbols and lines that adhere to specific projections and scale conventions. These technical construction drawings are primarily found in architectural projects, engineering, mapping and construction work. 

They whittle down to specific diagrams, sketches, or plans utilised during the architectural design and construction. Such drawings help document buildings over time, and they are slightly more detailed than a concept drawing if your local authorities require a more accurate view of your plans.

When curating the perfect planning application to offer to the local authorities that will allow you the permission to carry out your new-build plans and developments, it's essential to include a solid basic overview of your plans, plot and the style you aim to go for.  

When you begin creating building regulations, it's paramount to be incredibly detailed with all aspects of your development clear for the authorities or building councils to view so that they may check them against the criteria to see whether enough are ticked off to approve.  

All submitted information and construction standards curated by the contract administration must be complied with for you to receive follow-up approval for it to be built.  Sometimes you may only require planning permission, sometimes, you may require both planning permission and building regulation applications, and on some occasions, you may not need either. It all depends on the complexity of your project, the location and the style you wish to go for.

An interior architect is quite different to an interior designer for a few fundamental reasons.  The interior designer will focus primarily on the decoration and furnishings; for example, they might help you pick out sofas, counters, and curtains tailored to suit all homeowner's personal aesthetics, company missions, or the themes you're going to for.

The job of interior architecture is far more essential to the actual structure of your home.  They are more so responsible for the design of your home, ensuring it is divided practically and makes sense. 

For example, you wouldn't want to pick a staircase that doesn't structurally fit the home you have planned or built, or for kitchen appliances to be placed in a room, you initially planned to be the children's bedroom.

Complete Managed Design and Build Services

Architects will usually offer architectural project management for those that do not have the skills or know-how to do the job themselves. Professional architects are qualified to manage any project, no matter the scale or sector.

They can provide top-quality advice and design consultancy for aesthetic or practical reasons. Talented architects will be onsite for commercial, private and exclusive clients from the initial design stage right through to completion to assess whether what you have collectively drawn up matches the build and your requirements. They will pay meticulous attention to the complete project details and labour. 


Typically, it may take approximately 4-5 months for your London-based builders to build a house from start to finish. 

Initially, construction involves the acquirement of temporary electricity connections alongside any construction of sheds; this step can usually last for the first two weeks. Such is followed by 2-3 days of intense excavation and PPC work for footing to create slabs and brick or block building methods.  

Then, there are processes included called boxing, re-erection and column marking that are thoroughly completed within the following week. Plinth work generally takes 3-5 days, with the necessary PPC work and refiling for another five days.  

After this stage is complete, block or brick begins for the next two weeks, followed by an essential week of Lintel work. 

Once Lintel is finished, slab casting, shuttering, and electrical power works begin to span three weeks. The next few weeks will then be dedicated to plumbing and electrical works by London professionals.

The following 3-4 weeks are for plastering. After such is completed, the more decorative aspects begin to pepper in, such as the flooring, painting, waterproofing, sanitary fitting, window fittings and fabrication. The last steps are finalising and managing these works to bring the whole project to reality.

How do I plan a new build house?

Find a building plot

It's best to track down the correct site for your new-build project as soon as possible, as it can help with several aspects of the process. It can seem like a headache at first; however, it's arguably one of the most significant parts, it will help you in the design stage, and you never know who else in the area has their eye on that particular plot!

There are many online resources that you can utilise; for example, Plotsearch is one of the most common. You mustn't forget word of mouth; it has been a commonly forgotten tool since the online era; we encourage you to speak to the local residents in the area so that they can alert you of some of the best places. 

Arrange finance

One of the initial stages of the new-build process is to ensure you have a substantial amount of funding. 

It's crucial to ensure you have finance available; even if you wish to pay in stages for each aspect, it's best to plan and be sure you will pay for everything.

During the planning permission process, well-planned finances will also be a factor that ticks a box with your local authorities. Once London building councils or planning consultants trust that you have concrete finances available, they may seal the deal on your chosen plot.

Dedicated self-build mortgage products are available in a vast quantity through talented brokers at mortgage services. They ensure funds are released from your accounts on a staged payment basis throughout the duration of the project. 

Set a realistic budget

Despite the impression you have in your mind of what home projects may look like from TV shows like Restoration Home and Grand Designs, many new, custom-build home projects don't turn into money pits.

The reason why is because many self-builders take the time to sensibly approach aspects like budgeting and setting firm, realistic figures before the design stage.

It's vital to be responsible and spend plenty of time drawing up the exact prices of each stage. Your new-build architect can help curate mock-up costs that will allow you to get a somewhat precise prediction.

find a designer

Whether you have chosen a skilled architect, a house designer or a package supplier that can offer services for both designing and building, you want to ensure you have chosen someone who thoroughly understands your standards and requirements.

They must be able to produce a host of thoughtful responses that suit your budget and comply with building regulations.

get in touch with the planners

The most efficient way to determine whether or not your project is entirely viable to be built in your selected area is to ensure you make immediate contact with planners.

Many local authority planning departments can provide new builders with pre-application advice, yet please be aware that many will charge for such services, so it's best to ensure that you select the best company and councils.

In doing so, you can get a solid idea of the terms and conditions made by your specific planning officer. There are many aspects that they will and won't accept, for example, the materials, the size and overall style. For example, suppose you have created residential developments suitable for an old-timey cottage.

Yet, the space you wish to build is filled with office blocks, modern art and establishment buildings or perhaps your dream home has a particular roof that would, unfortunately, block natural light into your new neighbour's garden. In that case, you may very well be denied permission to build after submitting your application. Planning permission is essential regardless of the project.

choose a building route

Most first-time self-builders will select a packaging company that allows them to be efficiently guided through the designing and building process with ease.

Many of these companies will offer standard houses that are entirely customisable, alongside high-quality bespoke designed houses that suit specific requirements.

Some like to utilise the skills and talents of a thriving local architect or architectural firm with a professional project manager or contractor. It's to seek out those with expertise in the field to help you so that all processes can be done thoroughly and properly.

You can even opt to project manage your new build yourself if you feel you have the patience, observation skills and knack for pointing out exactly what you do and don't want.  Taking on this role on your own can allow you to save money; you must keep a close eye on the materials and labours throughout the whole project.

Your package supplier or architect can often favour a specific construction system, such as timber frames or brick and block. However, you mustn't be afraid to take the lead, especially if you have strong views or prefer a particular build method. 

get the essentials sorted

Before making any significant progress with your project, it's essential to ensure that you have appropriate consent to build; for example, if your project requires it, you must have planning permission and the appropriate building control approval.  If you need any special permission, like listed building consent, you must ensure this has been dealt with before allowing your builders onsite.

prepare your plot

The best way to get your project started is to ensure your site is fully prepared for building work. 

You must have the groundwork sorted and completed; you need to clear the vegetation, set out the trenches, and level the terrain to ensure no grounds laid are rocky or challenging.

Call on a dedicated ground-working company or your main contractor to deal with this stage, as they will be able to thoroughly assess whether the foundation pour and drainage structure are up to standard. 

get building

The most exciting time for builders on the project is to begin building the structural shell of your new build. 

Many self-builders can select between two construction methods on a project, especially as this is useful for cost-effectiveness. One of the more traditional choices is the brick and block; however, many builders also like using timber frames as they are quick and more straightforward to handle, which is ultimately better for schedules.

There are five essential stages in building a new house: foundation work, fitting wind and weather structures, the first fix, the second fix and the final decoration. Some of these are far more detailed when we break them down and can involve far more stages. 

What are the stages of a new build house?


The foundation is the beginning of the entire construction process. When the site is entirely cleared, digging commences, and builders make preparations for foundations and drainage. The initial stage involves developing essential services like drains, gas and mains electricity and water supply. 


These encompass the constructions completed once the foundations are fully laid, for example, walls, windows and external doors.

First Fix

The first fix includes the installation of staircases alongside plumbing and heating, and electric wiring.

Second Fix

At this stage, the kitchen is installed, with fitted light switches and sockets, and all fitted electrics are completed. Bathroom and sanitary ware, alongside internal joinery like skirting boards, coving, and doors. 


The decoration stage consists of painting woodwork, walls and ceilings with various colours and patterns.


Concerning the kitchen and bathroom, all essential furniture is completed, and doors are fully installed onto fitting hinges.

External Works

External landscapes include patio areas, lawns and other greenery like shrubs and trees, and garden plots, alongside any essential driveways.

Familiarisation Visit

Your sales manager will guide you into your brand-new home. They will show you the vital services and appliances involved, how they work and locate key electric points and central heating systems.

The Handover

The handover involves the handing over of the keys to your property by your sales representative.

Trimble Architects

Based in Twickenham

South West London

Call 020 8538 9303 to discuss your requirements.

Hounslow, Twickenham, Richmond, Kingston Upon Thames, Teddington
Hounslow, Twickenham, Richmond, Kingston Upon Thames, Teddington

Contact Us

If you require a New Build House get it touch today. We offer RIBA chartered architectural services throughout Hounslow, Twickenham, Richmond, Kingston Upon Thames, Teddington and South London. We look forward to hearing from you!

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