Stadtquartier Home

What Stadtquartier Home does

Stadtquartier Home is a Vienna-headquartered, multi-divisional real estate firm operating across Austria, founded in 2005 by Alexander Guelmami and Daniel Gallner, both graduates of WU Wien. The firm is headquartered at Börseplatz 1 in Vienna and maintains an inventory of over 1,000 units spanning from Vienna to the Salzburg Pongau region. It serves individual buyers, private investors, developers, and asset owners through both B2B and B2C channels.

The firm operates through four specialized divisions: SQ MAKLER (brokerage), SQ INVEST (investment sales), SQ DVLPMNT (project development), and SQ ASSETS (asset management), providing coverage of the full real estate lifecycle from sourcing and brokerage through development and ongoing management. Asset class coverage spans residential, commercial, and — since 2017 — hotel properties. The firm has received industry recognition including the IMMY Gold 2019 award and Quality Makler designations in 2018, 2019, and 2021.

The business model is predominantly transaction-based, with revenue generated through brokerage commissions at standard Austrian rates (typically 3% + VAT), supplemented by development margins, investment advisory fees, and asset management income from properties held on the balance sheet since 2011. The firm is privately held and remains founder-led, with CEO Oliver T. Lang (appointed 2018) overseeing a team of approximately 20 employees. No external funding rounds or capital raises are disclosed.

Name

Stadtquartier Home

Legal name

STADTQUARTIER Home GmbH

Website

https://stadtquartier.at

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

11–50 employees

Short description

Stadtquartier Home is a Vienna-based, multi-divisional Austrian real estate firm offering brokerage, investment sales, project development, and asset management services across Vienna and the Salzburg Pongau region, managing 1,000+ inventory units with a team of approximately 20 employees.

Ownership category

akta.pro rank

Product category

Real Estate Services

NAICS

Offices of Real Estate Agents and Brokers (53121), Residential Property Managers (531311), Residential Remodelers (236118), Lessors of Residential Buildings and Dwellings (53111)

SIC

Real Estate Agents & Managers (For Others) (6531), General Bldg Contractors - Residential Bldgs (1520), Real Estate Dealers (For Their Own Account) (6532), Operators Of Apartment Buildings (6513)

akta.pro primary industry

Traditional Residential Brokerage (Existing Homes) (BPAJAAAA)

akta.pro secondary industry

Luxury & High-End Residential Brokerage (BPAJAAAC)

Keywords

• Real estate brokerage
• Property development
• Asset management services
• Investment advisory
• Residential property sales

Headquarters

HQ city

Vienna

HQ country

Austria

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Real Estate Brokerage Commissions: The company operates as a real estate broker (Immobilientreuhänder) and earns commissions on property transactions. For purchases, the commission is typically 3% of the transaction value plus 20% VAT, with reduced rates for lower purchase prices.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Stadtquartier Home operates as a Viennese real estate services group delivering brokerage, investment intermediation, property development, and asset management across Austria. It brokers residential and commercial properties, matches investors with Zinshäuser, hotels, and development projects, develops and revitalizes properties in the Vienna metropolitan area, and manages a portfolio of more than 1,000 inventory units.

Product overview

Stadtquartier Real Estate Group operates as a multi-divisional real estate services company with four main divisions: SQ MAKLER (real estate brokerage), SQ INVEST (B2B investment services), SQ DVLPMNT (project development), and SQ ASSETS (asset management). The company was founded in 2005 and focuses on the Vienna metropolitan area and parts of Austria, offering comprehensive services from property acquisition through development and sale/rental of residential apartments, commercial properties, Zinshäuser (rental apartment buildings), and hospitality assets.

Differentiator

Problem solved

Functional benefit

Brands

• SQ INVEST: B2B investment brokerage service within the STADTQUARTIER Real Estate Group, offering holistic, individual, and needs-oriented investment concepts.
• SQ MAKLER
• SQ DVLPMNT
• SQ ASSETS

Products and services

• SQ MAKLER Real estate brokerage service for buying, selling, and renting residential and commercial properties in Vienna and Austria, delivered through personal Immobilienberater/Immobilienberaterin, the company website, and the JustImmo property portal. SQ MAKLER also holds exclusive selling rights on selected projects (e.g., Mariahilfer Str. 200).
• SQ INVEST B2B investment brokerage service connecting investors, family offices, funds, foundations, and developers with real estate opportunities including Zinshäuser, commercial properties, hotels, offices, and development projects in Austria and select international markets (e.g., Tuscany, France, Venice area).
• SQ DVLPMNT Project development division specializing in the acquisition, qualitative development, revitalization, and optimization of residential and commercial real estate in the Vienna metropolitan area, delivered with internal Baumanagement/Bauleitung and external architectural partners (e.g., Testor & Partner Architekten).
• SQ ASSETS Asset management services for maintaining, operating, and growing the firm's real estate portfolio of more than 1,000 units, including apartments, Zinshäuser, commercial properties, and hospitality assets across Vienna, Bad Gastein, Bad Hofgastein, Krems, and Ebreichsdorf.

Named customers3 records

Segments1 record

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Four partnerships are on record, tiered minor.

• WWK (Wiener Wirtschaftskammer)minorOthersMember of the Vienna Chamber of Commerce (Wiener Wirtschaftskammer), the statutory commercial representation body for businesses in Vienna
• ÖVI (Österreichischer Verband der Immobilientreuhänder)minorOthersMember of the Austrian Association of Real Estate Brokers, the professional association for real estate professionals in Austria
• RICS (Royal Institution of Chartered Surveyors)minorOthersMembership in RICS, the global professional body for chartered surveyors. CEO Oliver T. Lang is listed as MRICS (Member of RICS)
• Various Architectural PartnersminorStrategic or Co-development PartnerCollaboration with Testor & Partner Architekten and other architects for project developments and property designs

Scale indicators4 records

Recent moves12 records

Expansion highlights5 records

Direct peers

• RE/MAX Austria: Global real estate franchise with strong Austrian presence offering residential and commercial brokerage. Comparable as a transaction-driven brokerage competing for the same individual buyer and seller segments in Vienna and Austria.
• Sotheby's International Realty: Global luxury real estate brand with affiliated agents marketing high-end properties worldwide. Comparable on luxury international brokerage where Stadtquartier serves buyers seeking properties in Tuscany, France, and Venice.
• Otto Immobilien: Long-established Viennese real estate firm providing brokerage, valuation, and project services across Austria. Directly comparable as a domestic multi-service real estate operator focused on Vienna and Austrian metropolitan markets.
• Rustler Gruppe: Austrian real estate services firm offering property management, brokerage, and valuation across Vienna and other Austrian cities. Comparable as a domestic multi-line real estate operator with overlapping service scope.
• EHL Immobilien: Austria's largest real estate brokerage, also headquartered in Vienna, covering residential, commercial, and investment transactions. Highly comparable as a multi-divisional Viennese brokerage operating across asset classes with similar commission-based economics.
• Engel & Völkers: International luxury-focused real estate brokerage with Viennese operations. Comparable on the premium/luxury residential brokerage segment where Stadtquartier also serves international buyers in Austria and abroad.

Others

• IMMOunited GmbH: Austrian real estate data and analytics provider serving brokers, banks, and valuers. Comparable as a domestic real estate ecosystem participant that brokers like Stadtquartier interact with for market data and listing infrastructure.

Broad incumbents

• S IMMO AG: Vienna-listed real estate investment company with residential, commercial, and hotel assets across Austria. Comparable as a larger Austrian incumbent operating in adjacent investment and asset management categories.
• Knight Frank: Global real estate consultancy with significant residential brokerage and investment advisory operations. Comparable on the international luxury buyer advisory and investment brokerage dimension relevant to SQ INVEST.
• CA Immobilien Anlagen AG: Major Vienna-listed real estate company focused on office, residential, and hotel properties in Austria and CEE. Comparable as a broader incumbent with development and asset management activities that overlap with SQ DVLPMNT and SQ ASSETS.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/stadtquartier.immobilien

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Stadtquartier Home