Conjunto Residencial Prefeito Mendes de Moraes (Pedregulho).
Reidy's 260-metre serpentine block on pilotis — Burle Marx landscape, 1st Prize São Paulo Biennial 1951.
About the building
Conjunto Residencial Prefeito Mendes de Moraes (Pedregulho) in brief.
The Conjunto Residencial Prefeito Mendes de Moraes — universally referred to as Pedregulho — is a 52,142 m² social-housing ensemble on the western slope of the Pedregulho hill in São Cristóvão. The site has roughly 50 metres of vertical level change; Affonso Eduardo Reidy answered that with a 260-metre serpentine residential block raised on pilotis, threading the slope rather than fighting it.
Reidy designed the ensemble for civil servants of the then–Federal District: residential blocks plus on-site school, gymnasium, market, laundry, sports courts and swimming pool. Roberto Burle Marx designed the landscape. The 1947 project predates Reidy's later Gávea Residential Unit (1952) and is, with Lúcio Costa's Parque Guinle, the canonical 1940s Rio modernist residential statement.
Pedregulho is included in this directory as a teaching object: ADV's directory is not a for-sale catalog, and Pedregulho is not luxury inventory — but no working understanding of Rio residential architecture is complete without it. Buyers learning the city should walk it before reading more.
AddressWestern slope of Pedregulho hill (Rua Marechal Jardim), São Cristóvão, Rio de Janeiro — 20941-100 (52,142 m² site)
Distance to
What's around it.
Walk and drive times to the things that decide where you live in Rio — beach,
metro, airports, neighborhood anchors.
Quinta da Boa Vista10 min walk
Maracanã9 min by car
Metrô São Cristóvão (L2)12 min walk
Santos Dumont Airport14 min by car
Galeão (GIG)18 min by car
Centro Luiz Gonzaga (Feira de São Cristóvão)10 min walk
On the map
Conjunto Residencial Prefeito Mendes de Moraes (Pedregulho) located.
Western slope of Pedregulho hill (Rua Marechal Jardim), São Cristóvão, Rio de Janeiro — 20941-100 (52,142 m² site)
Project 1947, construction launched shortly after. Reidy's brief: house civil servants of the Distrito Federal on a 52,142 m² site with 50 metres of slope variation. The answer was a 260-metre serpentine block raised on pilotis — one of the longest single residential structures in 1940s Latin America.
Vista aérea do bairro de São Cristovão, destaque para o Campo de São Cristóvão · Wikimedia Commons (Public domain)
Burle Marx delivered the landscape. The ensemble included a school, gymnasium, market, laundry, sports courts and swimming pool, all on-site — a near-textbook expression of the CIAM 'living unit' idea ported into the carioca slope.
Vista aérea do bairro de São Cristovão, destaque para o Campo de São Cristóvão · Wikimedia Commons (Public domain)
At the 1st International Architecture Exhibition of the 1st São Paulo Biennial in 1951, Pedregulho won 1st Prize. The project is registered by IPHAN and remains operational; condition varies and successive restoration plans have been intermittently funded.
Palácio de São Cristóvão na Quinta da Boa Vista · Wikimedia Commons (Public domain)
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