Casa Dos

I had the good for­tune of grow­ing up with my broth­er Michael at the house in Rose Bay, which was remod­elled in 1962 from its 1920’s ori­gins. As a young boy, Sat­ur­day morn­ings were often spent inspect­ing con­struc­tion progress.

The ini­tial con­cept was to max­imise the site’s devel­op­ment poten­tial with a 2 storey house tak­ing advan­tage of the allow­able height and floor space con­trols. A Devel­op­ment Appli­ca­tion was approved for this dia­gram but con­sid­er­ing Sonia and my lifestyle, the fact that our chil­dren had
grown up and there was no need to be lum­bered with more main­te­nance and finan­cial bur­den, the idea of an over­sized man­sion for 2 peo­ple was even­tu­al­ly aban­doned. There was no desire to build
a mon­u­ment or demol­ish the house com­plete­ly but, rather, to retain the bones of the place and enhance it with a series of effec­tive, sur­gi­cal inci­sions. Fol­low­ing com­ple­tion of con­struc­tion draw­ings and the nec­es­sary approvals, con­struc­tion began in 2023. I knew this site like the back of my hand. It’s embed­ded in my con­scious­ness. It occu­pies a rock ledge ele­vat­ed from the street. Access is up 35
steps from a cul de sac or down 42 steps from the con­tin­u­a­tion of the street above. This made con­struc­tion dif­fi­cult. Whilst the site’s detach­ment and ele­va­tion is an incon­ve­nience, it cre­ates a unique­ly pri­vate expe­ri­ence. This chal­lenge became the opportunity.

The val­ley is now a pop­u­lat­ed human sub­ur­bia, but pre­dom­i­nant­ly an urban for­est with a vast golf course through the mid­dle of it. Whilst the site of this house is in a sub­ur­ban sub­di­vi­sion, its rocky
ter­rain and bush­land set­ting make it unique in a dense city like Syd­ney. As the son of the orig­i­nal own­ers, now an archi­tect who has spent almost half his life liv­ing there, often secret­ly crit­i­cal of
aspects of it, I found a new role as its cus­to­di­an. By the time the ren­o­va­tion plans were finalised I had remar­ried Sonia Blas­co Lazaro and the brief for the project had changed some­what. As (almost)
emp­ty nesters, we want­ed a place to live the rest of our lives in total enjoy­ment of the land­scape as well as the city. We embarked on a regen­er­a­tion of the gar­dens. No lawns or hedges, just native
plants, grass­es and ferns. The only exot­ic species is a bam­boo screen around the site perime­ter, which sep­a­rates us visu­al­ly from the neigh­bours. This was crit­i­cal to achiev­ing a pri­vate oasis.

The house itself sits between the front and rear bush and is now almost inci­den­tal in the land­scape. It’s a sin­gle lev­el, flat roof struc­ture with a base­ment fol­low­ing the ground line. The west­ern aspect from the site allows obser­va­tion of the mar­itime activ­i­ties which, in 1940, wit­nessed my father’s arrival. The view of the har­bour and city from this rock ledge, which I’ve expe­ri­enced for 60 years, has nev­er ceased to amaze me.

The liv­ing room” was con­ceived as a vast space, extend­ing from the book­shelf but­tress­ing the escarp­ment on the east­ern side of the room, all the way across the val­ley to Belle­vue Hill and 6km
to the high-rise facades of the city beyond. Pierre Chareau’s won­der­ful Mai­son de Verre, which I vis­it­ed in 1994, was an inspi­ra­tion. Its steel framed glass block wall pro­vides light and
pri­va­cy to a Parisian court­yard. With a view of Syd­ney Har­bour, the Mai­son de Verre’s steel and glass façade took the form of a more trans­par­ent enve­lope. This dou­ble-glazed façade with oper­a­ble
exter­nal blinds, forms a veil to pro­tect the inte­ri­or from strong Aus­tralian sum­mer sun. The liv­ing room, the pri­ma­ry pub­lic and social space of the house is treat­ed as a domes­tic piaz­za.
Its 5‑me­tre-high ceil­ing embraces the dis­tant view as well as the trees and land­scape in the fore­ground. It’s a place to greet guests and con­duct more pub­lic activities.

Pre­fab­ri­cat­ed con­struc­tion – steel and glass – installed by crane, was a prag­mat­ic approach to build­ing on this site. Over the past 40 years these mate­ri­als have become my palette but here they were com­pli­ment­ed and per­haps over­shad­owed by exten­sive use of tim­ber – engi­neered oak floor­ing, spot­ted gum walls, ceil­ings, cladding and join­ery. Light­ing and fur­nish­ings are inte­gral. Art­works are arranged wher­ev­er walls per­mit, but Lin Utzon’s mur­al in the liv­ing room is the lat­est addi­tion. It was paint­ed fol­low­ing site vis­its and dis­cus­sions dur­ing con­struc­tion and con­ceived specif­i­cal­ly for the space it occu­pies. It was trans­port­ed from her Mal­lor­ca stu­dio to its
final loca­tion, where it arrests enter­ing guests and com­mands its pres­ence. As archi­tect, builder and client, my dai­ly atten­dance dur­ing 18 months of con­struc­tion was an intense expe­ri­ence. I redis­cov­ered that the doing and mak­ing of some­thing cre­ates an invi­o­lable con­nec­tion with it. Despite inter­mit­tent trips to Spain, Sonia’s home­land, and oth­er parts of the world, this is our for­ev­er house. We hope to inhab­it it togeth­er for our remain­ing decades on the planet.

Pub­li­ca­tions

  • Grand Designs Aus­tralia 2025

Project details

  • Loca­tion
    Rose­Bay, NSW
  • Key con­sul­tants
    TTW
  • Builder
    Butress
  • Pho­tog­ra­phy
    Willem Reth­meier