Conservation Projects (selection)

In the conservation studio Walter Hammer, Ulm:

  • Brenz an der Brenz, St. Gallus church, facade, 13th century (1965-1966)
  • Ulm, Münster, west portal, interior, wooden and stone sculptures, plasterwork and wall painting on the triumphal arch 1471 (1964-1975)
  • Ulm-Wiblingen, library, stucco, polished white and ceiling frescos by F.M.Kuen 1744; Collegiate church, stucco, stucco marble and ceiling frescoes by Januarius Zick 1778-81 (1962-1965)
  • Heilbronn, St. Kalians church, main altar by Hans Syfer 1491 (1964-1968)
  • Blaubeuren, Ephorate, carved wood paneling by Jörg Syrlin the Younger, E. 15th century (1966)
  • Tübingen, town hall, east facade, sgraffito 1598/1872 and council chamber, wood paneling, late 16th century (1967-1968)
  • Blaubeuren, collegiate church, main altar by Michel Erhart, 1493 (1969-1975)

Federal Heritage Office, 'Restaurierwerkstätten' (Department for Conservation-Restoration)

Mostly pilot work, often together with freelance conservators-restorers.

  • Eitzing, St. Sebastian, polychrome wood sculpture, Thomas Schwanthaler, 1661 (1971-1972) (BDA W5296)
  • Lambach, collegiate church, former "Läuthaus" (bell ringing room), wall painting around 1080, air condition, mineral consolidation and salt reduction, a pioneer work  (1976-1994)
  • Vienna, Belvedere, Beethoven Frieze, wall painting on wooden support, monumental pastel, Gustav Klimt, 1902, conservation (1977-1984, )
  • Melk, collegiate church, epiphany chapel, wall painting and stucco marble, Joh. M. Rottmayr, 1718, pilot work (1977)
  • Bad Aussee, hospital church, wall painting h. Thomas, E. 14th Century, detachment, transfer on new support and restitution in situ (1977-1978)
  • Vienna, Stephansplatz, underground Virgil chapel, around 1230, wall painting,  wall painting, mineral consolidation and salt reduction, restitution in situ of transferred conch (1978-1979)
  • Volders, Friedberg Castle, hunting room, wall painting around 1520, salt reduction (1980)
  • Salzburg, Benedictine convent Nonnberg, former paradise, wall painting around 1150, air conditioning, fixation, cleaning (1987-1996)
  • Vienna, St. Stephen's Cathedral, former treasury, facade, Passion frescoes, around 1470, mineral consolidation, salt reduction (1979-1985) (1999-2000 reconversion of gypsum, diploma thesis by Jörg Riedel)
  • Judendorf-Straßengel, Maria Strassengel pilgrimage church, plasterwork and tympanum reliefs, around 1350, mineral conservation of plasterwork and restoration, reliefs: reconversion of gypsum and mineral conservation, pioneering work (1980-1986)
  • Nötsch-Saak, Saak parish church, south facade, wall paintings 1465 and 1516, removal of superimposing layers of whitewashes, consolidation, restoration (1982)
  • Metnitz, Karner, Totentanz, 1968-1970 detached wall painting around 1500, second transfer to a honeycomb support (1985-1996)
  • Grades, daughter church, south facade, plaster and wall painting, 15. century, pilot work together with craftsmen (1986)
  • St. Lambrecht, collegiate church, tower facades, plasterwork and wall painting, mid 17th century, conservation and restoration in cooperation with craftsmen (1987)
  • Parz Castle near Grieskirchen, south facade, wall painting around 1580, pilot work: cleaning, reconversion of gypsum, consolidation, aesthetic presentation (1987-1990)
  • Weißenkirchen, parish church, facades, 1510; "Corner Tower", west facade, 14./15. century; Teisenhofer Hof, courtyard and southern facade, 1542. Conservation and restoration in cooperation with craftsmen (1989-1990)
  • Krems, Ursula chapel, plastered and painted west facade, around 1300, 15th century,  conservation, including salt reduction  and restoration (1990)
  • Pöggstall, castle, arcaded courtyard, wall painting, around 1540, cleaning, consolidation, aesthetic presentation (1990-1996)
  • Hohensalzburg, horizontal tower, 16th century (1991)
  • Fusch an der Großglocknerstrasse, parish church, tower facade, restoration of the 18th c. decoration, 13.-20. century (1991)
  • Flaurling, Ris building, library 15th century, painted plastered facade, conservation and restoration (1991-1993)
  • Forchtenstein, castle, inner courtyard, wall painting 1687, cleaning including reconversion of gypsum, salt reduction, aesthetic presentation (1991-1993)
  • Leiben, castle, facades, 17th-19th century, painted facade, pilot work: restoration in cooperation with craftsmen (1994)
  • Vienna, St. Stephen's Cathedral, Bartholomew's Chapel, 14th century, interior, concept of conservation and repair (1994)
  • Bregenz, Martinsturm, interior, plaster and wall painting, mainly century, conservation-science study, concept of conservation (1996-1997)
  • Hard, Mittelweiherburg, facade, 16th century, repair in the context of a train course for craftsmen (1996)

HAWK University of Applied Sciences and Arts,  Conservation-Restoration Course, specialization: wall painting/architectural surfaces

Central projects in Germany (Lower Saxony, Mecklenburg-West Pomerania, Saxony-Anhalt), Austria (Lower Austria, Carinthia), Czech Republic, United Kingdom, Poland, e.g. B.

  • Hildesheim, St. Michaelis, cloister, stone surfaces, conservation-science study, conservation-restoration (together with Lothar Hoffmann and Marion Eifinger (married Friedrichsen) (1997-2000)
  • Bokel/Lower Saxony, St. John's Chapel, facade, painted brick, conservation and repair (1997)
  • Horn/Austria, Piarist monastery, training in plasterwork and sgraffito (1998)
  • Königslutter, Imperial Cathedral, westwork, ceiling painting 15. Jh., conservation-science study, conservation probes (1998)
  • Bad Gandersheim, collegiate church, west gallery, conservation-science study (1999)
  • Schöningen, cloister, lime plaster1457, conservation-science study, conservation, repair  (1999-2000)
  • Müsselmov, village church, interior, mural painting mid 18th. century; CSS, cleaning, conservation and restoration (2000-2008)
  • Lüneburg, City Hall , interior rooms, wall painting and historic flooring, 14th/16th century; conservation-science study, concept for conservation and repair, pilot works (2001-2004)
  • Idensen, Sigwards Church, interior, wall painting around 1130; conservation-science study, salt reduction, reconversion of gypsum, maintenance concept (2001-2005)
  • Brno/Czech Republic, House Tugendhat, architects: Ludwig Mies van der Rohe and Lilly Reich, 1930, facade and interior:  conservation-science study, concept for conservation and repair, pilot works (2003-2010)
  • Braunlage, Sanatorium Dr. Brown, facade and interior, 1912-1914; conservation-science study, concept fort conservation and restoration (2004)
  • Brno/Czech Republic, exhibition center, pavilions by Emil Králík, Pavel Janák, Josef Gočár 1928; conservation-science study, concept fort conservation and restoration (2005-2006)
  • Inglesham/Wiltshire/United Kingdom, St. John the Baptist, facade, interior, mainly 13th and 16th century; conservation-science study, concept fort conservation and restoration (2005-2007)
  • Mittelwalde/Międzylesie/Poland, Castle, facade 1580-1590; probes of repair of the sgraffito plastering (2006)
  • Salzwedel, St. Marien, interior, wall painting and plastering, 12th -16th century mainly; conservation-science study, concept fort conservation and restoration, pilot work (2006-2008)
  • Peine, Lessingloge, concret facade, 1926; conservation-science study, concept fort conservation and restoration, pilot work (2007)
  • St. Klementen/Austria, branch church, facade, interior wall paintings 15th-16th c. century; conservation-science study, concept fort conservation and restoration, pilot work, restoration of side chapel facade (2008)


Study work on a total of 30 objects in 13 countries in Germany, in 6 federal states of Austria, in Switzerland, in the Czech Republic, in Slovakia and in Italy, including: Altenesch-Lehmwerder, Altlandsberg, Badbergen, Berlin, Birseck, Burg Stargard, Dessau, Frauenburg, Freising, Gardelegen, Gimritz, Goslar, Halberstadt, Halle,



Brnenec / Brünnlitz / CZ, former LöwBeer factory, "Schindler's Ark"

Schindler's Ark is were 1200 Jews on Schindler's List were saved, as shown in the film by Stephen Spielberg. Schindler's Ark formed part of what was the second largest wool factory in Europe, owned by the Löw-Beers since 1854. In 1938 they fled the Nazis. The Low-Beer family bought back the ruined factory in 2019 and in partnership with the lokal community formed the Arks Foundation. They co-designed the project for a museum, textile laboratory and a sustainable community. See: 

In 2021, Dr. Daniel Low-Beer asked me for my expertise regarding the preservation of the historical substance, especially the architectural surfaces 



Ivo Hammer, Projekt Brněnec, Preservation of architectural surfaces. Concept No 1
Report to Dr. Daniel Low-Beer (, Vienna/Austria June 23, 2021 regarding history, materiality of construction and surfaces, proposals for study and preservation
Adobe Acrobat Dokument 71.5 MB
Ivo Hammer, Brnenec, Schindler's Ark. Additional observations after the visit on September 20, 2021
Plea for the preservation of the historical substance, in particular the former plumber's house and the boiler house
210920 Additional Information23.pdf
Adobe Acrobat Dokument 4.8 MB