Selling property in Untersiggenthal: the new village centre is open

There is no official price series for Untersiggenthal. Unlike the Canton of Zurich, the Canton of Aargau publishes no median prices by municipality. Listing figures for Untersiggenthal show what is asked, not what was paid.

What is on record is the stock: Untersiggenthal has 1,532 buildings with residential use in the Baden district. 1,085 of them are single-family houses, or 70.8%. The cantonal figure is 65.9%. Untersiggenthal ranks 10 of 25 in the Baden district. In total, Untersiggenthal has 3,575 dwellings. 51.6% were built before 1981, against 51.8% in the canton. 19.3 hectares of 176.1 hectares of building zone are undeveloped, or 10.9% (as of 2022). For the share of undeveloped zone, Untersiggenthal ranks 40 of 196 in the canton.

What your house in Untersiggenthal is worth follows from comparable sales, the plot and its condition. The free assessment provides a written range with its explanation.

On 28 November 2019, the municipal assembly approved a gross credit of 31.5 million francs for the centre.¹² The project comprises a central village square, a triple sports hall and a multi-purpose hall.¹² Ground was broken on 1 July 2021.¹² The new SICKINGA halls were inaugurated on 30 September 2023.¹² The solar installation has been in operation since August 2023.¹² The timber for the facade and the oak floor in the main hall come from the municipality’s own forest on the Siggenberg.¹²

A zoning plan in force since 2018 upzoned land along the Landstrasse.¹³ It also created a central zone that allows considerably denser development.¹³ A draft spatial vision for the Landstrasse is now available, dated 26 March 2026.¹³ It sets goals for housing, transport and open space up to around 2050.¹³ It only becomes binding on the authorities once the council adopts it after public consultation.¹³ For owners along the Landstrasse, the draft is well worth a look.

In Untersiggenthal, 790 of 1,532 buildings with residential use date from before 1981. That is 51.6%. Among the 196 municipalities in the canton, that is rank 75, counting from the highest share. In the Baden district: rank 9 of 25. Untersiggenthal therefore has about the same share as the canton at 51.8%. Compared with Untersiggenthal, the figure in Baden is 60.3%.

In Untersiggenthal, oil or gas heats 683 buildings with residential use, 44.6%, against 51.8% in the canton. Among the 196 municipalities in the canton, that is rank 103, counting from the highest share. In Untersiggenthal, a smaller share of houses uses oil or gas than in the canton.

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

Untersiggenthal has 7,875 residents. 1,600 of them, 20.3%, are 65 or older, against 19.5% in the canton. Among the 196 municipalities in the canton, that is rank 77, counting from the highest share. In the Baden district: rank 11 of 25. Compared with Untersiggenthal, the figure in Baden is 17.1%.

On 1 June 2026, 37 homes in Untersiggenthal were empty, 1.03% of the stock, against 1.05% in the canton. Among the 196 municipalities in the canton, that is rank 119, counting from the lowest vacancy. In Untersiggenthal, rented and owned homes are counted; the figure does not show how many houses are for sale.

The municipal tax rate of Untersiggenthal is 105%. Among the 196 municipalities in the canton, that is rank 78, counting from the lowest tax rate. How Untersiggenthal compares for the same income and wealth is shown in the municipality atlas. By public transport, Zurich HB is 37 minutes away from the Untersiggenthal, Gemeindehaus stop, with 2 changes.

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