Royal Institute of British Architects

Overview

The Royal Institute of British Architects (RIBA) is the professional body for architects in the United Kingdom, founded in London in 1834 and incorporated by Royal Charter in 1837 with the purpose of advancing architecture (Victorian London). It is a chartered body corporate and a registered charity, and it runs the architecture world’s most watched honours: the Stirling Prize for the UK’s best new building, the Royal Gold Medal for a lifetime’s work, and the biennial International Prize for the world’s most transformative building (Royal Institute of British Architects).

What most search results miss is how far RIBA’s reach now extends beyond Britain. In 2024 its International Awards for Excellence went to 22 projects across 14 countries, and one of them made history: a school in Niger designed by the humanitarian charity Article 25 became the first project by a non-governmental organisation ever to win a RIBA international award (Architects’ Journal; Article 25). That same year the International Prize itself went to a social housing scheme in Spain, and in 2025 the Stirling Prize went to an almshouse for older people in Southwark — a run of winners that says as much about what architecture is for as about who designs it best.

Nearly two centuries of architecture

RIBA began as the Institute of British Architects in London, founded in 1834 for the advancement of architecture and incorporated by Royal Charter on 11 January 1837 (Victorian London). Its charter set out a purpose it still quotes today: “the general advancement of civil architecture, and for promoting and facilitating the acquirement of the knowledge of the various arts and sciences connected therewith” (Victorian London). Its own current statement of purpose is plainer — to advance architecture for all by building the world’s greatest community of architects — and its mission is to educate, support, inspire and champion architects everywhere (Royal Institute of British Architects).

The institute is a global professional membership body and a registered charity (charity number 210566, incorporated by Royal Charter number RC000484), and it presents itself as an advocate for architecture, a leader on the climate emergency, and a champion of the next generation of architects (Royal Institute of British Architects). It is also a signatory to the United Nations Sustainable Development Goals and the UN Global Compact, a connection that reflects how much of its current agenda — sustainable cities, safer and more inclusive places — is framed in international rather than purely British terms (Royal Institute of British Architects).

The awards that shape the profession

RIBA’s oldest honour is the Royal Gold Medal, proposed by its first president, Earl de Grey, and produced by the Royal Mint since 1848, when it was first awarded to Charles Robert Cockerell (Royal Institute of British Architects). Given for a distinguished body of work rather than a single building, and presented on behalf of the monarch, it is described by the institute as architecture’s highest honour; recent recipients include SANAA in 2025 and Níall McLaughlin in 2026 (Royal Institute of British Architects).

The Stirling Prize is the younger, louder award. Established in 1996 as the successor to the Building of the Year award and named after Sir James Stirling on the suggestion of the critic Hugh Pearman, it goes to the building judged to have made the most significant contribution to architecture in a given year (Gresham College). It grew out of the RIBA Awards, which have run annually since 1966, and its shortlist is drawn from national award winners after rigorous judging visits by panels of architects and lay judges (Gresham College). The 2025 winner was Appleby Blue Almshouse in Southwark, a 59-flat social housing complex for people over 65 designed by Witherford Watson Mann Architects for United St Saviour’s Charity, announced on 16 October 2025 at London’s Roundhouse (Royal Institute of British Architects).

Internationally, RIBA’s awards work the same way at planetary scale. The 2024 International Awards for Excellence recognised 22 projects across 14 countries, each visited in person by a local ambassador appointed by RIBA, with themes of climate resilience, connection to nature, creative reinvention of existing buildings and design for community (Architects’ Journal). From those winners, the biennial International Prize went to Modulus Matrix, an 85-unit timber-framed social housing development in Cornellà near Barcelona by Peris + Toral Arquitectes, completed in 2021 as Spain’s largest timber-framed project and built around equal-sized tatami-module rooms arranged around a communal courtyard (Royal Institute of British Architects).

The Article 25 connection

The most telling winner of the 2024 international awards was not a famous studio’s showpiece but a school refurbishment in Niamey, Niger. Article 25’s Collège Amadou Hampaté Bâ, which provides education facilities for 1,200 students, won a 2024 RIBA International Award for Excellence — and Article 25 states it is the first non-governmental organisation ever to win the award (Article 25). The Architects’ Journal independently confirmed the award, describing the project as a college refurbishment using passive design principles to create new learning spaces suited to Niger’s extreme climate (Architects’ Journal).

The building itself explains why it won. It is built from local laterite stone, cut from the ground with hand tools and left to cure in the sun, giving it thermal mass that slows the build-up of heat and an embodied carbon content the charity describes as negligible (Article 25). Classroom blocks are oriented to catch the wind from the north, air flows through metal louvres, and a double roof creates a Venturi effect that pulls air through the roof cavity; temperature data collected over several months showed classrooms staying up to eight degrees Celsius cooler than outside by mid-afternoon, even filled with up to 40 students (Article 25). For an awards system founded to celebrate the evolution of architecture, a low-carbon school that keeps children cool without air conditioning is a pointed choice of winner.

A headquarters that is itself architecture

RIBA’s home is part of its story. After outgrowing its original headquarters at 9 Conduit Street, the institute ran a competition that drew 284 entries from across the Empire; George Grey Wornum’s design was chosen, and 66 Portland Place was opened on 8 November 1934 by King George V (Royal Institute of British Architects; Google Arts & Culture). Historic England lists the building at Grade II*, noting its steel frame and reinforced concrete construction clad in Portland stone, its bronze entrance doors by James Woodford and its relief panels by Edward Bainbridge Copnall (Historic England).

The building also houses the RIBA Library, described by RIBA Collections as the finest architectural library in existence, with over 150,000 books and more than 15,000 journal volumes, free to visit and open to everyone (Google Arts & Culture). But the headquarters is currently empty: on 1 June 2025 it closed to the public for approximately three years of refurbishment under the institute’s House of Architecture programme, intended to make it more accessible and better equipped for future generations of architects and members (Royal Institute of British Architects).

More awkwardly, in November 2026 the Architects’ Journal reported that RIBA had reported itself to the Charity Commission over potential fraud, that the Commission had opened a case to assess the report, and that no findings or conclusions had yet been made; related Metropolitan Police investigations understood to involve alleged potential fraud at RIBA, launched in 2023, were reported as ongoing, while the institute’s accounts to 31 December 2025 did not mention any police investigation (Architects’ Journal). The episode is unresolved, and this profile states only what was reported, not what — if anything — the investigations will find.

What this profile does not claim

This profile does not state RIBA’s current membership total, because the sources read in full do not agree on one and none gave a current audited figure. It does not give a refurbishment cost or completion date for 66 Portland Place beyond the institute’s own “approximately three years” from June 2025, because the only cost figure found rested on a single trade report. It does not treat the November 2026 Charity Commission matter as a finding of wrongdoing: at the time of reporting, the Commission had made no findings or conclusions, and the police investigations were described as ongoing. The claim that Article 25 was the first NGO to win a RIBA international award is Article 25’s own statement, corroborated in the sense that the Architects’ Journal independently confirmed the award itself; no independent source was found that had itself verified the “first NGO” superlative. Finally, the 1834 founding and 1837 charter dates rest on Victorian-era handbooks quoted by a specialist history site, not on the institute’s own archive, which was not read in full for this profile.