Usually done for a feasibility study, or short term work where the scope has to be teased out. An entire project could be based on a hourly rate, so that if the client does not make many changes, their decisiveness reduces the fee.
Percentage of construction cost:
Historically, often done this way. As construction costs go up, the number of decisions to be made increases in proportion. However, clients may feel that there is an incentive to keep construction costs high in order to inflate the fee.
When the scope of the project is tied down, the fee is fixed based on projected construction costs.
We quote a fixed sum that is based on a cost per square metre build cost of similar and recent projects, or that is based on a quantity surveyor’s estimation of costs. As built by a general contractor with skilled workers and appropriate insurances in place, not based on self build costs by a neighbour who has worked on their own house over a number of years!
Now this is a loaded question…you may come with a clear brief, thinking that ‘it just needs to be drawn up’. Ernö Rubik, a Hungarian architect, invented the cube to show how moving one element on a surface affected all the others. Invariably, there are more permutations of your idea that need to be explored. You may want a design brought to planning stage only. This we do, with the caution that the best way to ensure that the original vision is achieved is to have your architect guiding the project from start to finish. But we also understand that sometimes that’s not possible. You may toy with the idea of building without a contractor, by direct labour. Don’t.
Unless that is your skill set, allow a good contractor to use their experience and skill to deliver a great result.
Actual figures - our fees are on a sliding scale, depending on the project. For a new house costing €400,000 to build, our fee for a full service would be €40,000, 10% of the construction cost. As the spend on construction goes up, our percentage fee goes down. A build cost of €600,000 might be a fee of €51,000, for instance, which is 8.5%. Renovations start at a higher percentage, 12.5%, due to the greater work involved compared to a new build.
You can arrange a consultation on our Contact page.