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A communal building project for families, couples and singles in an extremely efficient energy-saving multifamily house (classified as a Passivhaus). The goal is living together well under one roof as neighbors belonging to different generations.


Current project phase: Closed to new members

Address
Project location: 10247 Berlin - Friedrichshain
Street address: Bänschstraße 8/10
Description of project location: in the city (within S-Bahn ring)

Basic concept
Special project emphases: KlimaSolarHaus is planned as a multiple-story newly built apartment building in the Samariterviertel (Samariter Quarter). It is envisioned as a multigenerational house with 19 living units erected by the communal building venture for the use of its members. The property is centrally located, yet has easy access to green spaces like a garden and a park. Since combining ecological and communal emphases is important to us, a communally-cultivated garden and a large space on the ground floor for the various activities of the community are planned. The house will be handicapped-accessible.
We want to bridge the segregation of young and old by means of multigenerational cohousing. The community is made up of families with children, couples and singles, the employed and the retired, thus fulfilling the desires and needs of each community member for a mutual support network in the day-to-day. We also equally value finding a balance between the needs for reciprocal support and for self-determination.
The project will be carried out through the engagement of its members, their reliability and readiness to compromise. They live connected to each other as neighbors, yet in individual living spaces. The rooms and spaces designated to be used communally offer each generation – children, parents and grandparents alike – a framework for regular communication and group activities.
Special building goals: Since the house will be erected as a multistory "Passivhaus," that entails the following:
- The thermal insulation of the outer walls will be above average.
- The window heat insulation will be built to Passivhaus standards.
- Thermal bridge-free construction,
- Hermetic sealing,
- Fitted with a comfortable ventilation system yielding a highly effective heat exchange for heat recapture.
The house will require just a little more than 5% of the heat used by the average living space.
However, we are not satisfied with only this below-average use of energy for heating. In order to supply heating and warm water without using any fossil fuels, the house will be fitted with
- solar panels covering the majority of the annual warm water supply,
- a wood-pellet heating system to supply the remaining needs for warm water and heating.
Philosophy in four words: Multigenerational house
Passivhaus / high energy efficiency
Handicapped-accessible
Community-oriented
Type of building: Newly built
Number of units, size, and usage/function: Apartments
Communal rooms
Communal garden
# of living spaces available: none
Rent or ownership: Ownership
Method of real estate rental/ownership: Ownership

Structure and financing
Membership / purchase price: 2.100 €/m²
Projected housing subsidies / building costs: 2 €/m²
Legal structure: GbR, später WEG
Financing: Individual capital
KfW credit
Bank financing
BAFA grant
In-sourced personal labor

History / Timeline
Initial group founding: informell Ende 2004, Planungs-GbR Anfang 2006
Project founded: Bau-GbR August 2006
Dates of project planning workshops: Juni 2006, Oktober 2006
Date of purchase of property / house: August 2006
Building application date: Ende März 2007
Start of building: August 2007
Moving-in date: August 2008

Contact info / partners in planning
Contact person:
Christoph Hackbart
Please note that the group discussion will be held in German. Also consider that the person to contact might not be fluent in English.
Project website: http://www.KlimaSolarhaus-Berlin.de
Project partners:
Advising for project founding: Winfried Härtel, Büro für Projektentwicklung
Planning: Architektenbüro Dittert & Reumschüssel, Collonaden 43, 20354 Hamburg, Christine Reumschüssel and Alexandra Merten
Project supervision: SPI, Sabine Benkwitz
Building services: Büro Ökoplan, Bernd Schwarzfeld
Soil toxin analysis: Dr. Lausch GmbH & Co. KG
Statics: Helmut Wiemer Ingenieurgesellschaft für Bauwesen mbH

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Further reading - containing the keyword Klimasolarhaus Berlin GbR

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Winfried Härtel | Büro für Projektentwicklung
Für die Finanzierung von individuellen Wohn- und Bauprojekten wird gemeinsam ein solides, inhaltliches Konzept und ein Investitions-

Winfried Härtel | Büro für Projektentwicklung
Develops cohousing and building projects together with clients. The Büro für Projektentwicklung ("Office for Project Development")

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