Townhouse for sale in Donostia-San Sebastián, Guipúzcoa

San Antonio, next to Gaiztarro.

A semi-detached villa on a 982 m² plot.
Currently laid out over two floors as two separate homes: ground floor, 138 m² usable; first floor, 151 m² usable.

An independent garage of 68 m².
A large garden/terrace surrounding the whole building.

The existing building has no heritage protection. This means it would be possible to build a new development of up to 3 storeys and a maximum of 4 homes (450 m² above ground level and 450 m² below ground level).

This is a rare development opportunity in San Sebastián: a large plot in a well-established residential area, with an existing income-producing building (currently two separate homes) that can continue to be used as-is, or be redeveloped from scratch into a new building with up to four independent units.

The absence of heritage protection on the current structure gives buyers flexibility, whether the plan is to renovate and let the two existing homes, occupy one and let the other, or start a full redevelopment project taking advantage of the generous buildable area both above and below ground.

With a plot of nearly 1,000 m², a garden that wraps around the entire building, and its own independent garage, this property offers a scale and level of privacy that is increasingly hard to find within San Sebastián itself.

An excellent option for developers, investors or families looking for a large plot with genuine building potential in a well-connected, established residential neighbourhood.

San Antonio, next to Gaiztarro, is a quiet, mainly residential pocket of the city with a strong mix of single-family homes and low-rise buildings, offering a village-like atmosphere while remaining within easy reach of central San Sebastián.

Buyers evaluating the redevelopment scenario should note the potential to create up to four independent homes, an outcome that could suit either a family compound, a build-to-sell project, or a long-term rental portfolio, subject to the relevant planning permissions.

A genuinely rare land opportunity within the city itself.