The operator and rights owner of eHÁZ:

Info Sierra Ltd.
Year of foundation: 2007
Address: 1162 Budapest, Ferenc utca 2.
Tax number: 14038376-2-42

Customer service:

Our customer service is constantly receiving enquiries by e-mail, which are processed in the order in which they are received.
Our telephone customer service is available from 8 a.m. to 4 p.m. on weekdays.

If you have any questions about using the system, please first consult the tutorial videos available in eHÁZ or the eHÁZ user manual( you can get a quick answer to your query or problem!


For error reports and other matters, please call the standard rate phone number: +36 1 700 3430
For billing, please contact our central customer service number 4.


For more information about our packages and services, please call our sales department!

Jolán Gosuly
Phone: +36 30 016 2692

Accounting services:

Call our partner accountancy firm directly for information on our condominium accounting services:

Krisztina Izsó
Phone: +36 70 6152597

Our central office:

1162 Budapest, Ferenc utca 2.

eHÁZ mobile applications

Download the eHÁZ Android or iOS app from the respective stores to get first-hand information about your condominium!

Business Ethics Award 2023

FINTECH AWARD - Proptech Solution of the Year 2021 & Forbes Cloud TOP50 2022

Hungarian Brands Award - innovative brand 2019, 2022, Finext Dubai - proptech and fintech excellence award 2024, HVG recommended company gold category 2024

Website of the Year - blockchain solution of the year 2020 - 2021

eHÁZ - Info Sierra Ltd. 2023 | All rights reserved | Privacy Statement | Terms and Conditions