Do I need an architect for a small extension?

Oct 21

Are you thinking of expanding your home and wondering, ‘Do I need an architect for a small extension?’ If so, you’ve come to the right place.

The purpose of this article is to outline the roles of an architect and the benefits they bring.

We’ll also look at the cost of an architect for an extension, as well as small extensions cost and process.

What does an architect do?

First, let’s understand what architects do. In summary, they carry out a wide variety of roles all the way through a building project.

The one they are perhaps best known for is designing and creating plans. Under this remit, they assess your existing space and take time getting to know what you want to get out of your extension.

This allows them to produce designs for you to consider. Once you’ve decided which design is the best fit, they can produce drawings for your builders to follow.

Their work doesn’t stop there. Architects can also take care of paperwork around planning permission and building regulations. If you share a wall or boundary with a neighbour, then they can also help with a party wall agreement if necessary.

Some architects may also be able to manage your team of contractors and the project as a whole.

Benefits of using an architect

Design skills

An architect can design the perfect project for your home. They use their expertise to create a practical, attractive extension that makes the most of your space. They can also advise on key design features like lighting and the use of energy-efficient practices.

Help with compliance

Your extension must comply with certain regulations. These include planning permission, building regulations and the Party Wall Act. Your architect will ensure your extension meets requirements and can also manage the paperwork for you.

Project management

Your architect will be able to coordinate the timeline of your building project and manage contractors. This helps ensure that your extension meets deadlines and that time and money aren’t wasted.

Peace of mind

When you use a qualified architect to work on your project, you gain peace of mind. That's because they can ensure your extension is designed to your unique specifications. Their skills also help maximise your space and budget.

Small extensions cost

The cost of your small extension will vary according to different factors. Clearly, the smallest of extensions, such as porches, are likely to cost less than more ambitious projects.

The function of your small extension will also be a factor in its cost. A kitchen or bathroom will cost more than a reception room due to the fittings and extra plumbing and electrical work required.

As a rough guide, Homebuilding & Renovating suggests that the cost of an extension in 2024 is £1,500-£2,250/m².

You can read more about small extensions cost in our posts What's the cost of a rear extension in London? [link to blog when published] and How much do small extensions cost? [link to blog when published].

Your small extension step-by-step

Here’s a brief guide to the stages of your small extension project:

Create a budget, including a contingency fund of 20% to cover unplanned costs.
Speak to an architect to discuss your vision. They will work with you to create a plan for your extension.
Get builders’ quotes. Your architect may be able to recommend tried-and-tested local contractors.
Check in with your architect about regulatory requirements. They can manage the paperwork for planning permission, building regulations and party wall agreements.
If your architect offers project management services, let them take the reins. Schedule regular updates so you can keep track of how your extension project is progressing.

Looking for a small extension architect?

Planning a small extension is an exciting time. Make sure you get the most out of your extension by working with an architect throughout your project.

Choose Humphreys & Sons to help you along the way. We’re an architects and chartered building surveyors company covering London and Essex, with a great track record in small extension projects.