Architectural Design Services - Just Design

Every building project starts with a strong design. With our architectural design services, your ideas can become reality-whether you need a house extension or want to plan a larger home renovation project. Our role is to shape spaces that fit what you need and give you real value. We work alongside a skilled team, so you always have support for every stage of the design process. Right from your first concept sketches to the detailed technical drawings, we make sure you have clear steps to follow, leading smoothly towards construction.

Architectural Consultants for Residential Projects

We provide architectural services for residential projects throughout South London and Surrey. Each project receives careful, individual attention, whether it’s for a house extensions or a loft conversions. Our team works closely with clients, listening first before sharing expert advice and offering design services tailored to fit your requirements. With detail-focused architects on board from the very start, your plans are developed with care, ensuring a polished result by the completion stage.

residential measured surveys

From Design Concept to Planning

Our design-only service is simple and direct, letting you avoid dealing with many different professionals. We take care of your building project from the first concepts and architectural drawings all the way through to a finished, well-organised design plan. The design process we follow is straightforward and broken into clear, practical steps. This keeps things clear and easy to understand at every stage.

Initial Meeting

STEP 1

The process begins with an initial meeting where we listen to your ideas and discuss what you hope to achieve. We talk about your aims and explore how your spaces could work for you. By hearing your views and needs, we make sure the design process starts off built around your goals. This early conversation shapes our path forward and helps us understand exactly what matters most to you.

Survey and Creative Design

STEP 2

We visit your property to carry out a careful survey and collect all the main details needed for your project. Using this information, our team develops two separate design options for you to consider. Each concept is designed to help you picture what your building project could look like, giving you a real sense of the different possibilities for your space.

Feasibility and Planning

STEP 3

For both design ideas, we prepare a straightforward cost guide, so you can make an informed choice early on. After you pick your preferred option, we guide you through each stage of planning—taking care of all forms needed by the local authority and looking after your planning application until it’s approved. Our goal is to make getting planning permission simple and less stressful for you.

Our Full Design and Planning Architectural Services

Our architectural design services cover all the important steps before building starts. You can rely on a knowledgeable team that understands every part of the process, so your project gets the benefit of real experience. We work in a clear, organised way that helps turn your early ideas into detailed plans, always getting things ready for what comes next. Take a look at the full list of architectural services we offer below.

Pre-Purchase Assessment

If you’re thinking about buying a property but aren’t sure what is possible, our pre-purchase assessment is here to help. We take a close look at your chosen property and share direct, professional advice on what could be changed or improved, what it will cost, and how long it will take. This gives you a better idea of your options, showing you what can be achieved before you decide to move ahead. By understanding the project’s true potential early on, you can make a more informed and confident choice.

Concept & Design Development

This stage is when your plan moves forward. We work alongside you to take your ideas and shape them into a clear concept. The team creates initial architectural drawings for residential projects, testing layouts until we find what fits your requirements best. Our goal is to create spaces that are both pleasing to look at and make sense for everyday life. Your thoughts and needs guide us, making sure the completed design truly supports your vision and is set for what comes next.

Planning Applications

Dealing with planning permission doesn’t have to be a challenge when you have the right help. Our architectural design services cover every step of the planning application process. We handle the preparation and direct submission of all design drawings and paperwork to your local authority. We have experience with many types of building projects, covering a wide range of residential projects. Our team works with planning officers, answers their questions, and supplies any extra information needed to keep your planning application on track. Because we understand building regulations and local rules, we can avoid unnecessary delays and increase your chances of getting planning approval without hassle.

Building Control Applications

When planning approval is granted, we start preparing your project for construction by focusing on building regulations. Our team puts together detailed building regulation drawings and other technical documents you’ll need for this stage. This prepares you for building control applications, making sure each part meets official requirements. Getting this right means your project is set for the construction phase, avoids unexpected issues later, and will be safe and reliable for years to come.

What Clients Say about Us?

Hearing directly from clients matters a great deal to us. We listen to the stories of those who have worked with our team, as their feedback tells us how we are doing. Honest words from homeowners let us see the value our architectural design services bring to residential projects. When clients talk about the results in their own words, it shows the level of service and care we aim for on each job-proof that our drive for quality pays off in real life.

Why Choose Us

  • Comprehensive planning from early concepts to final plans
  • Personalised designs with two concepts to choose from
  • Expert guidance with a thorough, end-to-end service

Your Vision, Our Commitment

Happy Building is dedicated to making the ambitious achievable. Trust our expert team to support you through a smooth, well-managed design and planning journey, delivered with architectural excellence.

95%

of our clients say
they’d build with us again

⭐⭐⭐⭐⭐

"Geo was just fantastic. A great listener, gave good professional design advice, technically very good and provided a top service. Highly recommend Geo at Happy Building"
Elmbridge Happy Building
Bryn Luck Anderson
Happy Homeowner
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150+

granted planning approvals per year
⭐⭐⭐⭐⭐

"I really enjoyed working with the Happy Building team. They were very friendly and helpful. They have a delightful team who are really passionate about their work, portrayed by outstanding feats of architecture. I have been delighted to experience and learn each and every stage of the planning process with their talented team, articually made to suit their clients illustrating thier dedication and expertise towards designing projects which can be build."
Goncalo Rodrigues
Goncalo Rodrigues
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6 in 10

clients choose us because we are Local
⭐⭐⭐⭐⭐

“We are currently working with Happy Building Company in Cheam on a project, and we couldn't be more satisfied with the outcome so far. From start to the finish, the process has been seamless, professional, and executed with the highest level of care. If you're looking for a team that prioritizes excellence, precision, and customer satisfaction, Happy Building Company is a fantastic choice. Highly recommended!"
Celestina Egbor
Celestina Egbor
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Happy Building - Budget Gertainty

⭐⭐⭐⭐⭐

“We initially used Happy Building’s Design and Planning service, then selected them to build our project as we felt confident that they understood our vision and would deliver to a high specification. We were not disappointed. We found the whole team to be extremely helpful and supportive throughout the entire process. They delivered a build that was well beyond our expectations and we absolutely love our new home. Thank you so much to all the Happy Building team."
Sarah Oliver
Sarah Oliver
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95%

of our clients say
they’d build with us again

⭐⭐⭐⭐⭐

"Happy Building guided us from planning to build with zero stress — and stayed exactly on budget. We’d do it again in a heartbeat."
Happy Homeowner
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Happy Homeowner
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Why Choose Happy Building for Your Architectural Drawings

Choosing who prepares your architectural drawings makes a real difference. At every stage, your vision and ideas take priority. We put your plans into action with architectural design services that go far beyond just providing drawings. Expect ongoing guidance, regular updates, and a process shaped to support your project from start to finish. By focusing on designing quality spaces and following clear, practical steps, our approach sets a strong base, helping your project run smoothly from day one.

Clear Options in the Design Process

It’s important to feel certain at each part of your building project. Our approach to the design process is clear-cut, aimed at removing confusion so you always know your choices. The process is set up to help you weigh design options fairly and easily, letting you decide what works best for your space without hesitation. We want you to move forward feeling sure and ready for what comes next.

  • Two design options: We provide variety and clarity, which allows for smarter decision-making. You get to see different possibilities for your space and compare them side-by-side.
  • Design selection: You can choose the option that best fits your vision with complete confidence, knowing you’ve explored the potential of your project with expert guidance.
  • Planning process: We handle all submissions to the local authority and include up to two revisions to the planning proposal, giving you peace of mind throughout the journey.

Local Authority in Architectural Design

Dealing with the local authority is a key part of getting any building project approved. We have years of hands-on experience in managing planning applications and building control applications for residential schemes. That means we know the best way to organise architectural drawings and submit all the right documents, so nothing important gets missed. Our team pays attention to every building regulation and required standard, helping your plans get processed quickly and correctly. With us, there’s less risk of unwanted setbacks or failed checks, so your project can keep moving forward without delays or added stress.

We Ensure Accurate Cost Feasibility

Understanding possible project costs up front is important for any building project. Our team carries out a clear feasibility study, laying out exactly what your budget could cover in practical terms. By providing this early, we help you plan wisely and avoid running into problems or unexpected costs later. You get straightforward details at this stage, making it much easier to decide on the next steps for your design and construction plans.

  • Feasibility study: We conduct a build cost analysis for both of your design options. This allows you to make a choice based not just on excitement and practicality, but also on a realistic understanding of your budget.

Expert Support

Our team stands by you with expert advice and ongoing support, right from your first enquiry through to the final design. We work alongside structural engineers, interior designers, and other experts to make sure every aspect of your project is handled with care. Our approach to architectural services brings together practical experience and the latest industry knowledge. If questions come up or you’d like some advice, we’re always here to help. We guide you at each stage, so you can move forward knowing you’re supported from start to finish.

Areas We Serve

Surrey

South London

Surrey

South London

Start Your Architectural Project Today

Ready to start planning your project or talk through any ideas? We invite you to contact us and see how our architectural design services could support your plans. Whether your project involves a house extension, loft conversion, garage conversion, our team offers expert advice and step-by-step guidance.

Reach out today – our professionals can discuss your goals, help you decide on the right direction, and guide you on what to do next. Together, we’ll work closely to create a quality space that brings your vision to life.

"Tell us a bit about your plans — our team will get back to you within 24 hours."
Laura Williams​
Laura Williams
Client Management Team
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Contact us

FAQs

After our first meeting and site survey, we aim to deliver two different design concepts within about three weeks. People usually want straightforward options quickly, so we make sure the design process runs without delays. This gives you new ideas to think about in good time. You’ll have the chance to look through, raise questions, and compare your choices before taking your project forward.

Yes, we prepare building regulation drawings for your project. As part of our architectural design services, we handle all the technical drawings that building control applications require. This makes sure your plans follow construction laws and standards, and are safe before any site work begins. Accuracy matters, so we focus on every detail, so you can start the construction phase knowing your paperwork is in order.

Yes, we look after the whole planning application for you. Our team gets all the right architectural drawings and paperwork ready, then submits them directly to the local authority. We also handle all the back-and-forth and speak for you throughout, making sure your planning permission is in good hands. This means you won’t need to worry about steps being missed-everything from start to finish is covered by us.

Yes, checking budgets and what’s possible is a key part of our service. We run a feasibility study, laying out the build cost for both design options in plain terms. This helps you pick an option that fits your finances and still matches your aims. By giving you a simple overview before you decide, we make sure the design you choose is sensible for your money and your goals.