Commune · data to December 2025
House prices in Helperknapp
Existing apartments in Helperknapp sold for an average €7,204 per m² in 2025, up 7.7% on the year before. That is higher than in 51% of communes.
- Average sale price per m², existing apartments
- €7,204/m²
- Change in a year
- +7.7%
Helperknapp: +60.7% in 7 years
Mean sale price per m² of existing apartments, by year
- Helperknapp
- Mersch canton
- Luxembourg
Show the numbers
| Year | Helperknapp | Mersch canton | Luxembourg |
|---|---|---|---|
| 2025 | €7,204/m² | €7,158/m² | €7,773/m² |
| 2024 | €6,692/m² | €7,231/m² | €7,704/m² |
| 2023 | €7,996/m² | — | €8,091/m² |
| 2021 | €7,076/m² | €7,386/m² | €8,105/m² |
| 2020 | €5,972/m² | €6,293/m² | €7,014/m² |
| 2018 | €4,484/m² | €4,980/m² | €5,576/m² |
Reports for Helperknapp
Each report opens the full series and the assumptions behind these figures.
Figures for Luxembourg: Helperknapp has no reliable figures of its own.
At the average sale price of existing apartments, a 90 m² home costs €648,363. With 10% down and a 30-year mortgage, the payment is €2,650 a month. Luxembourg sets no cap on the payment; the CSSF caps the loan at 100% of the home's value for first-time buyers who will live in it, 90% for other owner-occupiers and 80% for other buyers.
- Payment, two incomes
- 20%
- Payment, one income
- 41%
Renting a 90 m² apartment costs less each month than owning it. Owning counts interest, running costs and the return the deposit could earn, at the mean price existing apartments sold for; rent is the asking rent. Repaying the loan is saving, so it is left out.
- Rent per month
- €1,515
- Owning per month
- €2,562
In 2025, apartments were advertised at 2.2% more per m² than apartments sold for. A year ago the gap was +0.4%.
- Gap today
- +2.2%
- Change in a year
- +1.8 pp
Figures for Luxembourg: Helperknapp has no reliable figures of its own.
18.7% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 3,914
2.4% of the 1,732 homes counted in the 2021 census had nobody resident in them.
- Empty, 2021 census
- 2.4%
- Empty homes
- 42
Other communes in Mersch canton
Price per m²
- €10,000 and over
- €9,000 to €10,000
- €8,000 to €9,000
- €7,000 to €8,000
- €6,000 to €7,000
- Under €6,000
- No published price
| Commune | Average sale price per m², existing apartments | In a year |
|---|---|---|
| Lorentzweiler | €8,100 | +0.6% |
| Lintgen | €7,410 | −13.1% |
| Mersch | €7,364 | +0.9% |
| Helperknapp | €7,204 | +7.7% |
| Bissen | €6,747 | −1.6% |
| Colmar-Berg | €6,583 | +2.1% |
| Larochette | €5,715 | +1.0% |