Heritage of Southwest Asia

Heritage of Southwest Asia

Definition and Classification of Architectural Ornaments in Iran: Developing a Conceptual and Operational Framework Based on the Analysis of Identification and Classification Criteria

Document Type : Original Article

Author
Yaser Hamzavi
Associate Professor, Research Institute of Cultural Heritage and Tourism (RICHT), Tehran, Iran.
10.22034/hsaj.2026.596896.1059
Abstract
Architectural ornaments constitute an important part of the physical, aesthetic, historical, and semantic identity of Iranian architecture. However, the extensive diversity of materials, techniques, methods of execution, and the relationship of these elements to architecture has resulted in the concept of “architectural ornament” being used with inconsistent boundaries and definitions in existing studies, while a comprehensive and multilevel classification system has yet to be established. This study aims to operationally define “architectural ornament” and develop a framework for classifying architectural ornaments in Iran. In terms of purpose, the research is developmental-conceptual, and methodologically it is based on the study and comparative analysis of the literature on the concepts of architectural ornament and decoration, as well as an examination of existing studies on architectural ornaments in Iran. Accordingly, “relationship to architecture,” “mode of formation,” and “function” were identified as the principal components determining the conceptual scope of architectural ornament, while “predominant material and constituent material, together with the predominant nature of the ornament,” was selected as the basis for the first level of classification. The proposed definition considers an architectural ornament to be an element associated with architectural surfaces, components, or fabric that is either created concurrently with the formation of the architecture or executed or added to it subsequently, and that possesses at least an aesthetic or conceptual-semantic function. A covering-protective function may also fall within the scope of architectural ornament when accompanied by either of these two functions. Based on this framework, Iranian architectural ornaments were organized into 16 major groups at the first level, with the possibility of developing more specialized classes and subclasses based on technology, execution technique, form, motif, location, historical period, and regional characteristics. The findings indicate that distinguishing between criteria that determine the concept and criteria used for classification, together with organizing these criteria within an open hierarchical structure, can provide a coherent basis for the identification, documentation, study, and conservation of architectural ornaments in Iran.

Graphical Abstract

Definition and Classification of Architectural Ornaments in Iran: Developing a Conceptual and Operational Framework Based on the Analysis of Identification and Classification Criteria

Highlights

·        The criteria for defining the conceptual scope of architectural ornamentation, namely, its relationship to architecture, mode of formation, and function, are clearly distinguished from the criteria used for its classification.

·        A comprehensive 16-fold classification has been developed at the primary level, based on the predominant material and medium, as well as the overall nature of the work.

·        The proposed framework is designed as an open, hierarchical, and expandable classification system, allowing for the incorporation of additional subcategories based on technology, technique, and historical period.

·        The term “architectural ornamentation” is proposed in place of “architectural-associated decorations” to emphasize the intrinsic, physical, and identity-related roles of these elements.

·        The formative material of the motifs is established as the primary criterion for determining the principal type of ornamentation. Surface or supplementary layers, such as paint and gilding, do not alter its primary nature.

·        For boundary cases and movable objects, such as chandeliers and jewelry, a stable and deliberately designed relationship with the physical and semantic system of the building is proposed as the criterion for identifying them as architectural ornamentation.

·        Given changes in function over time, the study emphasizes the need to distinguish between the original function of an object at the time of its creation and its subsequent function or status in historical and conservation studies.

Keywords
Architectural ornaments
Definition of architectural ornament
Conceptual framework
Conservation and restoration
Subjects
Ahani, F., Etessam, I., & Islami, S. G. (2017). The distinction of ornament and decoration in architecture. Journal of Arts and Humanities, 6(6), 1–10. (In Persian).  http//:10.18533/journal.v6i5.1188.
Blair, S., & Bloom, J. M. (2006). The Art and Architecture of Islam, 1250–1800. Translated into Persian by Ardeshir Eshraghi, 2nd ed. Tehran: Soroush. (In Persian).  
Ebrahimi, E., Aniran, M., & Jahanbakhsh, H. (2024). Architectural Ornamentation. Tehran: Payam-e Noor University. (In Persian).  
Ettinghausen, R., Grabar, O. (1999). The Art and Architecture of Islam, 650–1250. Translated into Persian by Yaqub Ajand. Tehran: SAMT. (In Persian).  
Ferdowsi, A. (2007). Shahnameh, Based on the Moscow Edition. Tehran: Hermes. (In Persian).  
Ferrier, R. W. (1995). The Arts of Persia. Translated into Persian by Parviz Marzban. Tehran: Farzan-e Rooz Publishing and Research. (In Persian).  
Getty Research Institute. (n.d.). Architectural ornament. In Art & Architecture Thesaurus (AAT). J. Paul Getty Trust.
Godard, A., et al. (1992). The Monuments of Iran. Translated into Persian by Abolhasan Sarvghad-Moghadam, 4 vols., 2nd ed. Mashhad: Astan Quds Razavi Islamic Research Foundation. (In Persian).  
Gombrich, E. H. (1979). The Sense of Order: A Study in the Psychology of Decorative Art. Ithaca: Cornell University Press.
Grabar, O. (2000). The Formation of Islamic Art. Translated into Persian by Mehrdad Vahdati-Daneshmand. Tehran: Institute for Humanities and Cultural Studies. (In Persian).  
Hamzavi, Y. (2024). Pastiglia Ornaments in Persian Architecture: An Analysis of Manufacturing Technologies. (e4). Heritage of Southwest Asia, 1(1), e4 https://doi.org/10.22034/hsaj.2025.548564.1005
Hamzavi, Y., & Aslani, H. (2023). Architectural Ornaments of the Pir-e Baqran Mausoleum. Isfahan: Goldasteh. (In Persian).  
Hamzeh-Loo, M. (2002). Applied Arts in the Soltaniyeh Dome. Tehran: Makan Publishing. (In Persian).  
Hamzeh-Loo, M. (2007). Architectural Ornaments of the Borujerdi House in Kashan. Tehran: Pazineh. (In Persian).  
Hill, D., &Grabar, O. (1996). Islamic Architecture and Ornament. Translated into Persian by Mehrdad Vahdati-Daneshmand. Tehran: Elmi va Farhangi. (In Persian).  
Hillenbrand, R. (2008). Islamic Architecture: Form, Function and Meaning. Translated into Persian by Bagher Ayatollahzadeh Shirazi. Tehran: Roshanah. (In Persian).  
Javadi, A. (1984). Iranian Architecture. Tehran: Mojarrad. (In Persian).  
Khodadadi, A., & Bozorgmehri, Z. (2011). Iranian Amuds: Identification, Deterioration Assessment, and Conservation. Tehran: Soroush Danesh. (In Persian).  
Kiani, M. Y. (1995). History of Iranian Art and Architecture in the Islamic Period. Tehran: SAMT. (In Persian).  
Kiani, M. Y. (1997). Architecturally Associated Decorations of Iran in the Islamic Period. Tehran: Cultural Heritage Organization of Iran. (In Persian).  
Kiani, M. Y. (2000). Iranian Architecture in the Islamic Period. Tehran: SAMT. (In Persian).  
Maki-Nejad, M. (2008). History of Iranian Art in the Islamic Period: Architectural Ornaments. Tehran: SAMT. (In Persian).  
Masjedi-Khak, P., Khazaei-Kouhpar, M., Yousefi, Z. (2018). Iranian Architecture in the Islamic Period and Architecturally Associated Decorations. Tehran: Samira. (In Persian).  
Michell, G. (2001). Architecture of the Islamic World. Translated into Persian by Yaqub Ajand. Tehran: Mola Publishing. (In Persian).  
Mousavi Haji, S. R., & Nikbar, M. (2014). Applied Arts of the Islamic Period. Tehran: SAMT. (In Persian).  
Necipoğlu, G. (2000). The Topkapı Scroll: Geometry and Ornament in Islamic Architecture. Translated into Persian by Mehrdad Qayyumi Bidhendi. Tehran: Roshanah. (In Persian).  
Omranipour, A. (2005). The Art and Architecture of Islamic Iran. Tehran: Ministry of Housing and Urban Development, Deputy for Architecture. (In Persian).  
Papadopoulo, A. (1989). Islamic Architecture. Translated into Persian by Heshmat Jazani. Tehran: Rajas Cultural Publishing Center. (In Persian).  
Pirnia, M. K. (1990). Styles of Iranian Architecture. Compiled by Gholam-Hossein Memarian. Tehran: Islamic Art Publishing Institute. (In Persian).  
Pirnia, M. K. (2004). Stylistics of Iranian Architecture. Compiled by Gholam-Hossein Memarian, 3rd ed. Tehran: Memar. (In Persian).  
Pope, A. U. (1991). Persian Architecture. Translated into Persian by Gholam-Hossein Sadri-Afshar, 2nd ed. Tehran: Chap-e Naghsh-e Jahan. (In Persian).  
Pope, A. U., & Ackerman, P. (2008). A Survey of Persian Art: From Prehistoric Times to the Present. Translated into Persian by Najaf Daryabandari et al.; edited by Cyrus Parham. Tehran: Elmi va Farhangi. (In Persian).  
Riegl, A. (1992). Problems of Style: Foundations for a History of Ornament. Trans. Evelyn Kain; annotations, glossary and introduction by David Castriota. Princeton: Princeton University Press. (Original German edition: 1893).
Trilling, J. (2003). Ornament: A Modern Perspective. Seattle: University of Washington Press.
Van Eck, C. (2020). Ornament in Europe: From Antiquity to the Twentieth Century. Oxford Bibliographies in Architecture, Planning, and Preservation. Oxford University Press. https://doi.org/10.1093/OBO/9780190922467-0042
Zabti Jahromi, A. (2010). Studies in Iranian Art. Tehran: Ney Publishing. (In Persian).  
Heritage of Southwest Asia
Volume 3, Issue 1
June 2026 Article ID:4