Stroggyli Polykatoikia, circular 1970s building by Nikos Despotidis, transforming 1970s kifisia with sliding walls.

Transforming a 1970s Kifisia Apartment with Sliding Walls and Adaptable Spaces

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Written by Flynn Matthews

2026-08-17

Georgios Apostolopoulos Architects has reimagined a Kifisia apartment where every wall is treated as optional, converting a 1970s neighborhood into a flexible living environment. Located in a 1970s circular modernist block in Athens, this 80-square-meter apartment, once a neglected psychiatrist’s office, is now a thoughtfully redesigned space.

The renovation began with a bold step: stripping the interior to its bones, much like a similar project by Oikonomakis Siampakoulis. Every partition was removed, exposing the original form before introducing new elements, leaving behind a versatile, open space defined by custom joinery. This approach was central to revamping the area into a modern, adaptable living area.

Rounded kitchen island with seamless monochrome cabinetry, blending old and new design elements.
The island’s rounded edge carries the same monochrome cabinetry finish used throughout the apartment, with no seam marking where new work meets old

The Heart of the Home: Crafting a Multi-functional Kitchen

At the core of this transformed apartment lies a curved kitchen island that integrates all necessary appliances. This central piece isn’t just a functional element; it’s a hub for cooking, working, and social interaction, with the freedom to engage from any side. Modernizing the space into a contemporary setting, the surrounding furniture is equally flexible, allowing for daily reconfiguration based on needs.

For more ideas on versatile living spaces, explore how a European-inspired lounge creates a timeless oasis blending style and adaptability.

Joinery unit flush with walls concealing air-conditioning and wardrobe storage in the apartment.
The same joinery unit hides the apartment’s air-conditioning and wardrobe storage, its doors aligning flush with its depth so they read as part of the wall rather than an opening

The design extends into the bedroom, cleverly concealed by units housing wardrobes and utilities, allowing the space to either open up or close off entirely. This adaptability, according to Apostolopoulos, aims to create a home that evolves with whoever resides in it, an essential transformation of the area.

Original fireplace with bio-ethanol insert, replacing decorative brick in renovated apartment.
The fireplace is one of the few original features kept from the apartment’s earlier life, though its decorative brick was replaced with a bio-ethanol insert

Integrated Living with Discreet Utility Areas

A compact vanity flanked by mirrored doors cleverly hides a shower room and separate WC, maximizing previously underutilized spaces. This approach is reminiscent of Nikos Kouklakis’s work, where functionality is built into custom furniture, elegantly merging kitchen and storage elements into a unified whole, thus modernizing the interiors.

Consider the impact of smart design in small spaces like a new home energy improvements that boost efficiency and comfort.

Textured glass kitchen cabinets expose dishware while maintaining the monochrome aesthetic.
Textured glass fronts let the dishware inside stay visible without breaking the kitchen’s monochrome surface

Instead of a distinct second bedroom, Apostolopoulos introduces a space that morphs effortlessly. It includes a fold-down bed and a drop-down desk, turning the area into a bedroom, office, dining room, or an extension of the living area as needed, with sliding doors providing privacy when required.

Stone vanity between mirrored doors revealing shower and WC in former storage space.
The stone vanity sits between two mirrored doors that conceal a shower room and separate WC, spaces that once held a storage room

Materials Respecting the Building’s Essence

The renovation strategy focused on restrained material selection. Microcement flooring and matching tones for walls and joinery maintain the architecture’s integrity, updating the aesthetic while preserving its unique style. A modern bio-ethanol fireplace pays homage to the apartment’s past. Apostolopoulos’s architectural expertise from London, Oxford, and Plymouth is evident in the thoughtful, system-based design rather than mere decorative updates.

Bedroom panels mirror reflections, doors designed as wall extensions in the apartment.
Each panel is sized and placed to mirror the bedroom back into itself, so the doors read as more wall than entrance

This apartment, while maintaining the same external appearance, hides an intricate system of adaptable spaces, representing a quiet revolution in living design. Georgios Apostolopoulos Architects demonstrates how thoughtful design can transform a static space into a dynamic home, redefining the experience of living in a versatile and modern environment.

Microcement flooring extends from the interior to the terrace, maintaining material consistency outdoors.
The same microcement flooring used throughout the interior continues onto the terrace, carrying the apartment’s material language outdoors

Source: urdesignmag.com

Frequently asked questions

How has the Kifisia apartment been transformed?

Georgios Apostolopoulos Architects reimagined the 80-square-meter Kifisia apartment by stripping the interior down to its bones, removing all partitions, and creating an open, versatile space defined by custom joinery. This transformation turned the once neglected psychiatrist’s office into a modern, adaptable living area.

What is a key feature of the apartment’s kitchen?

A key feature of the apartment’s kitchen is the curved kitchen island that integrates all necessary appliances. It serves as a hub for cooking, working, and social interaction, allowing engagement from any side and contributing to the flexible nature of the space.

How is flexibility incorporated into the bedroom design?

The design of the bedroom includes units that house wardrobes and utilities, allowing the space to open up or close off entirely. This adaptability aims to create a home that evolves with whoever resides in it.