What makes the price
A budget comprises three items: land, construction, ancillary costs. What sets Luxembourg apart is their relative weight, and it reverses the usual order of decisions.
Land shows a price range incomparable with that of construction, from a few hundred euros per square metre in the north to several thousand in the capital. Construction prices vary too, but within a far narrower band. The choice of municipality therefore weighs more than the choice of finish level.
- How a construction budget is built up
- Why land dominates the budget
- The three items and their proportions
- Why building is expensive here
| Item | What it covers | Role in the budget |
|---|---|---|
| Land | Acquisition, duties and deed costs | The dominant item in Luxembourg |
| Works | Construction, from shell to finishes | The most detailed item |
| Ancillary costs | Fees, taxes, connections | The most frequently forgotten item |
The price of land
This is the heaviest item and the most poorly compared. An are is one hundred square metres, and confusing the two units produces an error by a factor of one hundred.
The useful quantity is neither the advertised price nor the price per are, but the cost of land per square metre of living area actually achievable on the plot. An affordable plot may carry servicing, access or developability constraints that absorb the apparent saving.
The cost of construction
Luxembourg professional sources place the weathertight shell and turnkey in distinct ranges, excluding land and ancillary costs. Neither label has a regulatory definition, which makes any comparison based on vocabulary alone meaningless.
Three levers change the works cost, and the first is underestimated. Building form weighs more than finish level, for a decision taken at sketch stage and without loss of area.
What is added to the price
Ancillary costs represent an order of magnitude of fifteen to twenty per cent of construction cost. They appear in no single quotation, which explains why they are systematically underestimated.
One point is worth knowing before any purchase: when land is bought in order to build, registration duties apply to the land alone, the construction falling under a different tax regime. The applicable VAT regime follows from it.
Tracking and steering
A price goes stale. The official construction price index appears twice a year, with a lag of around three months between the period measured and its publication. It is compiled excluding the cost of land, and therefore does not measure the item that dominates the budget.
An early estimate is not there to give the price, but to say whether the project is possible. It gives a range and its assumptions, never a single amount.
The four rules to remember
Look for land before designing the brief. The reverse produces unfinanceable projects and late decisions.
Compare on total cost per square metre of living area, land and ancillary costs included, the only quantity comparable between projects.
Never use a price per square metre without knowing its scope, its reference area and its date.
Check the tax schemes at the time of commitment, not at the time of estimating, the framework being in motion.
What this guide does not cover
Three subjects belong to other guides. Development rules, which determine what may be built and belong to municipal planning. Tax and housing support, whose schemes require prior steps. Measurement and tendering, which allow works to be described and offers compared.
This guide reflects the state of the data at the date of checking and serves professional orientation. It does not replace a quotation, a detailed estimate, or tax advice.