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If you’re planning a serious build or renovation, one of the first questions that comes up is what it actually costs to have someone run the job for you. In Ireland, construction project management typically works out at between 8% and 15% of the total build cost, though on smaller residential jobs you’ll often see a fixed fee starting from around €5,000 and climbing from there depending on scope.
The actual construction project management cost depends on the size of the project, how much design and planning work is bundled in, and whether the project manager is a standalone consultant or part of a full design and build team. On a €300,000 extension, for example, you could reasonably expect management fees of somewhere between €24,000 and €45,000 baked into the contract.
Below we’ll break down what you’re actually paying for, the different fee structures used in Ireland, and where homeowners tend to trip up when budgeting for this part of the job.
What Does Construction Project Management Actually Cover?
Before you can judge whether a fee is fair, it helps to know what a project manager is doing behind the scenes. On a residential build, they are the person keeping the trades, the timeline, the budget, and the paperwork all pulling in the same direction.
On a typical Dublin renovation or extension, the project manager will handle the following.
- Coordinating architects, engineers, and trades so nobody is waiting on somebody else
- Managing the build programme and adjusting it when weather, deliveries, or planning delays hit
- Running procurement and negotiating material prices on your behalf
- Keeping the budget tracked line by line with clear reporting
- Handling compliance with building regulations and coordinating Cert A and Cert B sign-off
- Being your single point of contact so you’re not chasing five different phone numbers
Without that role, most homeowners end up doing it themselves. That works for a bathroom refit, but on a full renovation it usually costs more in mistakes and delays than the management fee would have.
How Project Management Fees Are Structured in Ireland
There isn’t one universal pricing model. Contractors and consultants may quote different design and build costs in Ireland as they use a few different approaches. It’s worth understanding the difference before you sign anything.
Percentage of Build Cost
This is the most common structure, especially for standalone project management consultants. The fee usually sits between 8% and 15% of the total construction cost, with the percentage dropping as the project gets bigger.
For a €150,000 renovation, you might see 12% to 15%. For a €500,000 new build, that could drop to 8% or 10%. It scales because the workload doesn’t grow at the same rate as the budget.
Fixed Fee
Many design and build companies now offer fixed-price contracts where project management is folded into one overall number. You don’t see a separate line item, but the cost is absorbed into the tender. This gives you budget certainty, which is why it has become more popular in recent years.
Hourly or Day Rate
Less common for full builds, but occasionally used for advisory work or for reviewing plans you already have. Expect day rates of €400 to €700 for a qualified construction project manager in Ireland.
Typical Cost Ranges by Project Type
Fees vary hugely depending on what you’re actually building. Here’s a rough guide based on what we see in the Greater Dublin market for residential work.
- Attic conversion (€30,000 to €50,000 build cost): project management often bundled in, effective cost around €4,000 to €7,000
- Rear extension (€120,000 to €200,000): management fees of roughly €14,000 to €28,000
- Full home renovation (€200,000 to €400,000): management fees around €20,000 to €50,000
- New build (€400,000+): management fees around €32,000 to €60,000, usually at the lower percentage end
- Deep retrofit with grant work (€100,000 to €250,000): management fees of €10,000 to €30,000, though SEAI grants can offset a portion of the wider project cost
These are rough guides, not quotes. A period property in Ranelagh with tricky access will cost more to manage than a straightforward new build on a green site, even if the raw construction cost is similar.
What Drives the Cost Up or Down?
Two projects with the same headline budget can have very different management fees. A few practical factors move the needle.
Complexity and Site Conditions
Tight urban sites, structural issues, protected structures, and unusual designs all push fees higher because they demand more hands-on coordination. A simple square extension on a suburban semi is quicker to run than a wraparound on a period cottage with a shared boundary wall.
Planning and Regulatory Work
If your project needs a full planning application, that adds weeks of coordination and follow-up. Exempted development jobs are lighter on management time. Some contractors quote planning management as a separate item, typically €2,500 to €5,000 depending on complexity.
Scope of Service
A project manager who is also handling design, engineering, and trades under one roof will usually cost less as a percentage than three separate consultants doing overlapping work. This is why trusted design and build services tend to work out affordable overall, even when they look more expensive on paper.
Is Project Management Worth Paying For?
Homeowners sometimes ask whether they can just manage the job themselves and save the fee. It’s a fair question, but the maths rarely works out.
On a typical renovation, poor management shows up in three ways. Trades sit idle waiting for materials. Small design changes turn into expensive rework. And unclear communication means the finish doesn’t match what you had in your head. Any one of those can wipe out the fee you thought you were saving.
- Delays of even two to three weeks can cost thousands in extended rental, storage, or finance costs
- Unmanaged variations are where budgets balloon by 15% to 30% on DIY-run jobs
- Compliance mistakes can create real problems when you go to sell the house later
For any job over €100,000, having a dedicated project manager is generally the difference between a build that finishes on time and one that drags into the following year. For guidance on your rights and responsibilities as a homeowner during a build, Citizens Information has useful background on contracts and consumer protection.
How to Budget for Project Management on Your Own Job
When you’re putting together your overall budget, treat project management as a real line item rather than an afterthought. A few practical tips.
Ask for the Fee Structure Upfront
Whether it’s a percentage, a fixed fee, or absorbed into a design and build contract, get it in writing. If a quote doesn’t mention project management at all, that’s a red flag. Somebody has to run the job, and if nobody is being paid to do it, nobody will.
Compare Like With Like
A tender that looks 10% cheaper might be leaving out planning coordination, engineer sign-off, or handover documentation. When you’re comparing two quotes, list everything included in each and check the gaps.
Factor In the Feasibility Stage
Most reputable contractors now charge a modest fee for feasibility and cost planning work before the main contract, typically €200 to €500 for an initial consultation, or from €2,500 plus VAT for a full technical and cost review of existing plans. That work usually pays for itself many times over by catching problems early.
Getting a Clear Quote for Your Project
Every project is different, and any contractor giving you a firm number without seeing the site or the drawings is guessing. The best way to get a real figure is to have a feasibility conversation early, ideally before you commit to design fees.
If you’re planning a renovation, extension, or new build in the Dublin area and want a straightforward breakdown of what management will actually cost on your job, get in touch with our team and we’ll walk you through it.
