Selling property in Mellingen: a new centre after the bypass

Official statistics on prices paid are missing for Mellingen. The Canton of Aargau does not collect them by municipality, unlike the Canton of Zurich. Portal values for Mellingen rest on offers, not on completed sales.

What is on record is the stock: Mellingen has 1,038 buildings with residential use in the Baden district. 622 of them are single-family houses, or 59.9%. The cantonal figure is 65.9%. Mellingen ranks 21 of 25 in the Baden district. In total, Mellingen has 2,891 dwellings. 45.1% were built before 1981, against 51.8% in the canton. 8 hectares of 150.8 hectares of building zone are undeveloped, or 5.3% (as of 2022). For the share of undeveloped zone, Mellingen ranks 127 of 196 in the canton.

The price of your house in Mellingen depends on location, plot and building, measured against similar sales. The free assessment gives you a written price range with its reasoning.

Mellingen’s partial bypass has been in operation since 29 October 2022.¹² The town council took this as the occasion for a strategy covering 2022 to 2033. It discussed the first draft with commissions, local parties, businesses and schools.¹² The result was a target picture and ten strategic priorities. They are to be implemented step by step, as finances allow.¹²

A project list from January 2026 sets out the time frames.¹² The Hauptgasse is to be redesigned in 2025/2026, and the old Reuss bridge renovated in 2026/2027. Birrfeldstrasse follows in 2027, Bahnhofstrasse and Zentralplatz in 2028/2029, and Lenzburgerstrasse in 2030.¹² Lindenplatz and Lindenpark are to be redesigned in 2031/2032, and an underground car park has a planning credit.¹² The town is also developing centre zones A and B. According to the town, the list is for guidance and makes no claim to completeness.¹² For a sale, this means locations along these streets and squares will change noticeably in the coming years.

In Mellingen, 468 of 1,038 buildings with residential use date from before 1981. That is 45.1%. Among the 196 municipalities in the canton, that is rank 122, counting from the highest share. In the Baden district: rank 14 of 25. Mellingen therefore has a lower share than the canton at 51.8%. Compared with Mellingen, the figure in Baden is 60.3%.

In Mellingen, oil or gas heats 567 buildings with residential use, 54.6%, against 51.8% in the canton. Among the 196 municipalities in the canton, that is rank 55, counting from the highest share. For many houses in Mellingen, heating is therefore on the agenda.

Anyone selling in Mellingen adds records of heating, roof and windows to the sale documents. From 1 January 2029, owners living in their home in Mellingen lose the imputed rental value and the maintenance deduction.¹ The calculation before a renovation is in Renovate or sell.

Mellingen has 6,324 residents. 1,112 of them, 17.6%, are 65 or older, against 19.5% in the canton. Among the 196 municipalities in the canton, that is rank 149, counting from the highest share. In the Baden district: rank 18 of 25. Compared with Mellingen, the figure in Baden is 17.1%.

On 1 June 2026, 5 homes in Mellingen were empty, 0.17% of the stock, against 1.05% in the canton. Among the 196 municipalities in the canton, that is rank 12, counting from the lowest vacancy. The rate for Mellingen covers rented and owner-occupied homes, not the supply of houses.

The municipal tax rate of Mellingen is 110%. Among the 196 municipalities in the canton, that is rank 107, counting from the lowest tax rate. It applies to income and wealth; the municipality atlas compares all municipalities. By public transport, Zurich HB is 26 minutes away from the Mellingen Heitersberg stop, with no change.

In Aargau, property gains tax falls with every full year of ownership. The rate drops from 40 per cent in year one to 5 per cent after 25 full years.² After more than ten full years, a house gets at least a flat-rate cost deduction: 80 down to 65 per cent of the sale price.³

If you sell your permanent and exclusive home, you can apply to defer the tax.² You must buy or build a new Swiss home within 2 years before or 3 years after the sale.² Only the reinvested proceeds are deferred.² Deferred does not mean waived: the next taxable sale also taxes this gain.²

Aargau has no classic transfer tax. Instead, the canton charges a land register levy (Grundbuchabgabe) on every sale: 4 per mille of the price.⁴ Buyer and seller are jointly liable; the law does not say who bears it.⁴

Only an Aargau notary (Urkundsperson) may notarise the sale contract.⁵