- For most SME office fit outs, design and build tends to save money overall. Not because of a lower headline price, but because a fixed contract sum agreed upfront and a single point of accountability reduce the variations, delays and coordination costs that erode a traditional budget once work is underway.
- Traditional procurement, or design-bid-build, can still deliver better value on larger, highly bespoke or architecturally complex projects, where competitively tendering separately packaged works can secure sharper unit prices, provided the client has the time and expertise, or quantity surveying support, to manage the coordination risk that comes with running several contracts at once.
- The real cost difference between the two routes rarely shows up in the original quote. It shows up later, in variations, delay and the gaps between separately contracted trades, which is exactly where an integrated delivery team earns its advantage.
The question is asked on almost every fit out brief, and the honest answer is that it depends on the project. But for the great majority of office fit outs, particularly those under a few million pounds, the procurement route itself is one of the biggest levers a business has over the final cost, often bigger than any individual specification decision.
What each route actually involves
Design and build brings design, specification, project management and construction together under a single contract with one contractor. That contractor carries design responsibility as well as delivery responsibility, which is the detail RICS guidance on procurement strategy points to as the key difference between the two routes: who holds the risk, and at what point in the project it transfers.
Traditional procurement, sometimes called design-bid-build, separates the two. The client first appoints an architect or design consultancy to develop the brief and drawings, then puts the completed design out to tender, and finally appoints a contractor to build it. Each stage happens in sequence, with a different party responsible for each one.
Where design and build tends to save money
The saving is rarely visible in the first quote, which is often similar across both routes for a straightforward project. It shows up over the life of the project, in three places in particular.
- Fixed pricing agreed before work starts, rather than a design that gets valued and tendered afterwards, when the client has already committed emotionally and practically to a scheme that may exceed budget.
- Value engineering happening at the design stage, when changes are cheap, rather than mid-build, when the same change can mean reopening finished walls and ceilings.
- One point of accountability, so when something does not line up between design intent and site reality, there is a single contractor responsible for resolving it rather than a dispute about whose fault it was.
Faster delivery compounds all three. A shorter programme means less time paying for a space that is not yet productive, whether that is overlapping rent, temporary accommodation, or simply staff working around disruption for longer than necessary.
Where traditional procurement can still be the smarter choice
Design and build is not automatically cheaper for every project. On larger, more complex or highly bespoke fit outs, where architectural ambition or a distinctive design is the priority, appointing a specialist design team and then competitively tendering the build can produce a stronger design outcome and, with the right oversight, a competitive price.
That route asks more of the client. Someone needs to manage the interface between designer and contractor, resolve the inevitable questions that arise when drawings meet an existing building, and hold both parties to account if something slips. Larger organisations with an in-house project management function, or the budget for an experienced quantity surveyor, are better placed to capture that value than a business running its first fit out with limited internal resource.
|
Design and build |
Traditional procurement | |
|---|---|---|
| Cost certainty | High. Fixed price agreed before work starts | Lower until tender is complete, with more scope for variations |
| Speed | Faster, with design and construction overlapping | Slower, as each stage happens in sequence |
| Where risk sits | Largely with the contractor, under one contract | Split across separate consultants and contractors |
| Client input needed | Lighter touch, one point of contact | Greater, coordinating multiple parties |
| Best suited to | Most SME and mid-sized office fit outs |
Large, complex or highly bespoke projects |
Timeframes and pricing dynamics are indicative and will vary by project size, building condition and specification.
The hidden costs that actually decide the answer
UK fit-out costs have remained structurally elevated since 2022, according to Cushman & Wakefield’s benchmarking, which makes cost certainty at the outset more valuable than it was a few years ago. That is precisely the risk traditional procurement leaves open until tender, and the risk design and build is structured to close early.
The gaps between separately contracted trades are where traditional procurement most often loses its price advantage in practice. When a delay or defect sits between two contractors’ scopes, working out whose responsibility it is takes time, and time on a live commercial project is rarely free. It shows up as extended disruption to the business, additional professional fees to manage the dispute, or a variation that gets agreed simply to keep the programme moving.
Getting it right
Neither route is universally cheaper. Design and build tends to win on total cost for most office fit outs because it closes off the coordination risk that quietly inflates traditional budgets. Traditional procurement can still be the right call for larger or more architecturally ambitious projects, provided the client has the resource to manage it properly. As principal contractor, JPS Projects manages office fit-out and refurbishment projects nationally from planning through to completion, bringing joinery, electrical, passive fire protection and general building works together under one team and one contract, so businesses get cost certainty from the outset rather than finding out what a project really costs once it is already underway.
You can read more about our experience and approach, browse recent case studies, or get in touch to talk through which route makes sense for your project.