Interior Designer in Perth | Otium Society by Madelaine Mathieu

A calm living room in soft natural light, with linen sofa and timber floors

Interior design for Perth homes, from the first plan to the last object on the shelf.

Madelaine Mathieu on the coast — Madelaine Mathieu, architect and interior designer

01 — About.

Meet Madelaine

An Argentine architect who has spent more than a decade designing in Buenos Aires and Perth, from urban plans to private homes.

She grew up around her family’s hotel, where she learned that good design starts with how people are looked after. Today she brings the same attention to interiors, art, flowers and the objects people live with, and to the clients she designs for.

Read her story

02 — Process.

The process

Four stages, each with something you can hold at the end. Every project starts with a free discovery call, and you can stop after any stage.

Consultation
A free discovery call, then an in-home visit where we walk your home or your plans together and talk through how you live, what you need and what you can spend. You leave with clear next steps, whatever you decide.
You receive · a written summary and recommended scope
Concept & lookbook
Measured plans, layout options and a lookbook of materials, colour and mood that fixes the direction before money is spent.
You receive · floor plan options, lookbook, 3D views
Selections
Every finish, fixture, tap and light chosen, sampled and costed, then scheduled so your builder orders the right thing at the right time.
You receive · finishes & fixtures schedule, sample board
Delivery & styling
Site visits and answers for your builder through construction, then the furniture, art and objects that make it feel finished.
You receive · site support, furniture plan, final styling

03 — Selected work.

Selected work

Rooms that hold a life, not a trend.

Ombú St. House

Residential · Buenos Aires

A grand family house renovated with care: floors restored, original openings recovered, new light throughout.

La Malbequería

Hospitality · Buenos Aires

A colonial house in Palermo reopened as a wine bar, transformed in days on a tight budget.

N5 Office

Workplace · Buenos Aires

Two teams brought under one roof, with room to meet, focus and unwind.

04 — Shop.

Shop

Opening soon

Tableware, textiles, lighting and ceramics, chosen by Madelaine from makers in Western Australia and Argentina.

Handmade ceramic vessels on a plinth — Ceramics · Western Australia

Folded linen textiles on a timber bench — Textiles · Argentina

A simple white pendant light — Lighting · Western Australia

05 — Letters.

Letters

Notes from the people we have designed with.

“We were drowning in tile samples. Madelaine narrowed every choice down to three, and our builder never waited on us once.”

Claire & Tom H.New build · Doubleview

“She saw a kitchen in our 1970s house that we couldn’t. It is now the room everyone ends up in.”

Priya S. · Renovation, Mount Lawley

“Our granny flat is forty square metres, and Mum says it feels bigger than her old house.”

The Romano family · Granny flat, Bayswater

“We had the furniture but not the feeling. Two weeks of styling and the house finally looked like us.”

Hannah W. · Furnishing & styling, Claremont

“She worked within the strata rules without ever making the apartment feel like a compromise.”

Daniel O. · Apartment, East Perth

Otium Society: interior designer in Perth

Meet Madelaine

The process

Consultation

Concept & lookbook

Selections

Delivery & styling