IZ4 is the culmination of 10 years of effort dedicated to improving your quality of life.

We develop our work with renewed energies and all the passion necessary to continue being leaders in the market.

From our headquarters in Guipúzcoa, Navarra and England, we manage projects for the rehabilitation of residential buildings and interior design, we carry out restoration works of historic buildings, we help property managers in maintenance work and we build residential villas.

Whatever your need, we offer you our experience and the best professionals.

We work every day to be your best choice.

Relive construction with us.


Paseo Anelier 6, bajo
31014 Pamplona-Iruña (Navarra)
948 30 49 67


c/ Plaza Irún 4, 1º A
20011 San Sebastián-Donostia (Guipúzcoa)
943 46 09 12


Ashforf House, 100
College Road First Floor, Harrow
Middlesex HA1 1BQ (United Kingdom)
+34 699 464 232 / +34 948 304 967

la empresa