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Makan Al Najah

Guides

Design and build or a separate designer

One contract for design and build keeps things simple. A separate designer keeps more control. Each suits different projects.

Floor plan drawing with a tape measure and pen, ready for a site survey

With design and build, one company designs the work and builds it. There is a single point of responsibility, design and pricing are developed together, and the programme can be shorter. The client has less independent design advice, so the brief and specification need to be clear.

Comparison guides set real options side by side and say when each one suits, rather than naming a winner for every home.

With a separate designer, an independent designer or architect develops the design, then contractors price and build it. The client gets independent advice and can compare like-for-like quotes. It usually involves more coordination and separate fees, and gaps between design and construction must be managed.

What matters most on this page

  • Single responsibility

    Design and build places design and construction with one party.

  • Independent advice

    A separate designer represents the client’s interests in design.

  • Comparable quotes

    A complete design lets several contractors price the same scope.

When each suits

  • Design and build

    Clear briefs, standard renovations and clients who want one contact.

  • Separate designer

    Complex or high-specification projects and clients who want independent oversight.

  • Hybrid

    A designer sets the concept, and a design-and-build contractor develops and delivers it.

Before choosing a route

  • Define your involvement

    How much time you can give to decisions.

  • Consider complexity

    Structural or specialist work may benefit from independent design.

  • Ask about changes

    How design changes are priced under each route.

Questions we are often asked

Is design and build cheaper?

It can avoid separate fees, but it depends on the project and how clearly it is specified.

Do I lose control with design and build?

Not if the brief, specification and approval points are clear in the agreement.

Can I bring my own designer?

Yes. Many contractors work from a client’s design.

Who checks quality under design and build?

The contractor manages quality, and the client can still appoint an independent advisor to review key stages.

Tell us about the property

Tell us which options you are weighing and the room they are for. We will say which one the existing structure and services actually allow.

Next step

Choose the route that suits your project

Tell us about the project and how involved you want to be. We will explain which route fits.

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