Preserve the Existing Character or Radically Transform the Space?

The Central Dilemma of Every Paris Apartment Renovation

In Paris, every renovation project begins with the same, almost philosophical question:Should the existing character be preserved, or should the space be radically transformed?

Behind this question lies the full complexity of Paris apartment renovation.Older apartments tell a story — sometimes centuries old — written into their walls, floors, and volumes. Yet they must also meet modern expectations: light, comfort, fluid circulation, smart storage, and strong thermal and acoustic performance.

Striking the right balance between architectural heritage and contemporary living is a subtle and demanding exercise.

The Appeal of the Existing: A Heritage Worth Preserving

Decorative moldings, original parquet floors, fireplaces, generous ceiling heights, period woodwork… These elements are an integral part of the identity of Parisian apartments.

They offer:

• strong architectural and heritage value

• a timeless aesthetic

• a character that is difficult — if not impossible — to recreate artificially

Systematically removing these features often impoverishes the space, stripping it of what makes it unique.That said, preserving the existing does not mean freezing an apartment in the past.

Preserving historic features in a Paris apartment renovation requires discernment, not nostalgia.

Contemporary Requirements: Living Better Today

Conversely, an older apartment must adapt to modern lifestyles. Ways of living have evolved: remote work, blended families, multifunctional spaces, open kitchens, and the need for optimized storage.

Today’s expectations are clear:

• increased natural light

• improved circulation between spaces

• clearly defined volumes

• thermal and acoustic comfort that meets current standards

• durable, high-performance materials

Beyond a Binary Choice: Creating a Dialogue

At Costaud Rénovation, we believe that successful renovation is never about choosing sides.

It is neither about preserving everything at all costs, nor about transforming everything radically.True success lies in creating a dialogue between heritage and contemporary use.

This approach involves precise, thoughtful decisions:

• preserving decorative moldings while rethinking spatial layout

• restoring original parquet flooring while integrating high-performance heating

• keeping a decorative fireplace while modernizing the adjacent kitchen

• revealing ceiling height through carefully designed lighting

Each choice is an architectural arbitration — never automatic.

A Tailored Approach, Guided by the Space and Its Use

Every Paris apartment comes with its own constraints: building structure, load-bearing walls, existing networks, co-ownership regulations, natural light, and orientation.

This is why a successful renovation can never be standardized.

Our approach is built on:

• a careful reading of the existing structure

• a deep understanding of the occupants’ real needs

• a global design vision integrating structure, technical systems, and finishes

• controlled execution that respects the original building

The project is shaped by the place — not the other way around.

Making a Space Livable Today Without Erasing Its History

A successful renovation does not erase the history of a place.It makes that history livable today — functional, comfortable, and durable.

Heritage is not a static backdrop. It is a living material that must evolve with those who inhabit it.

It is precisely within this tension between past and present that the most timeless renovations emerge — projects that age gracefully without falling out of style.

And You — Where Would You Draw the Line?

When it comes to your own renovation project, where would you position the balance?

• Maximum preservation, to protect the soul of the space

• Contemporary reinterpretation, to transform everyday use

Or, like us, do you believe that the most compelling solution often lies somewhere in between?