The Wave

Penthouse Apartment of 93 sq.m. – 6th and Top Floor – Residences Pyrgos of Athens

On the 6th and top floor of the new landmark building “Wave Residences”, a rare penthouse apartment of 93 sq.m. Is available for sale — designed for those who seek true long-term value, high aesthetics, and harmony within Athens’ modern urban landscape.

The apartment bears the architectural signature of Paul, who meticulously designed every square meter from the ground up, focusing on functionality, spatial flow, and a contemporary interpretation of luxury.

Interior

The interior is defined by:
•An impressive living room with clean dimensions of 9.20 by 4.50 meters,
•Two bedrooms with built-in wardrobes measuring 3.20 meters each and an integrated work desk of 1.20 meters in both rooms,
•A spacious bathroom, plus a separate guest WC,
•A dedicated laundry/storage area in the corridor, designed to serve everyday needs without disrupting the clarity and purity of the living spaces.

With a ceiling height of 3.15 meters, the apartment offers a remarkable sense of openness, in perfect balance with the proportions of the living area and terrace.

Outdoor Space

The front façade opens up to a private terrace measuring 5.05 by 10 meters — over 50 sq.m. Of exclusive outdoor top-floor space, offering unobstructed views and complete privacy.
The single-span glass façade of the living room, 8.50 meters wide and 2.65 meters high, connects the interior with the exterior in a seamless experience of light and open horizon.

A sculptural pergola-shading structure frames the façade, offering protection from both sun and rain while serving as a strong architectural statement that distinctly elevates the building’s appearance.

Architecture & Sustainability

The residence is part of a certified passive building, offering near-zero energy consumption, thermal stability, and a healthy indoor microclimate all year round.

The kitchen, designed and constructed exclusively for this apartment by Italian brand Lube, features premium materials and high-level ergonomics. Worktops are clad in natural stone or ultra-compact surfaces, while all window frames meet top-tier energy efficiency standards.

The heating and cooling system includes:
•A heat pump,
•Underfloor heating,
•Vrv air conditioning, and
•A fully integrated smart home interface for total control over all systems.

This is a one-of-a-kind residence, standing out both in architectural vision and execution — a rare opportunity to acquire a home in a high-demand area on Évrou , right next to the Athens Tower, with direct access to the city center and every major infrastructure point.

Private parking space and storage included.

It also features a closed ground-floor garage of 27 sq.m. And a basement storage room.

Passive Building – Technical Analysis

What is a Passive Building

A Passive Building (Passive House) is a building designed to achieve very low energy consumption while maintaining high thermal comfort, relying mainly on passive design strategies rather than conventional heating and cooling systems.

The concept focuses on reducing energy demand first, then covering the remaining needs efficiently.

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Core Principles (5 Key Pillars)

1. High-Performance Thermal Insulation
•Walls, roof, and slab with U-values ≤ 0.15 W/m²K
•Continuous insulation layer
•Elimination of thermal bridges

2. Airtight Building Envelope
•Airtightness requirement: n₅₀ ≤ 0.6 air changes/hour
•Verified through Blower Door Test
•Careful detailing of joints and penetrations

3. High-Efficiency Windows and Doors
•Triple-glazed units
•Uw ≤ 0.8 W/m²K
•Optimized solar gains, especially south-facing orientation

4. Mechanical Ventilation with Heat Recovery (Mvhr)
•Heat recovery efficiency: 75–90%
•Continuous supply of fresh, filtered air
•Minimal heat losses during ventilation

5. Thermal Bridge-Free Design
•Critical areas: balconies, slabs, columns
•Use of thermal break elements

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Energy Performance Criteria (Passive House Institute)
•Heating demand ≤ 15 kWh/m²·year
•Cooling demand ≤ 15 kWh/m²·year
•Primary energy demand ≤ 120 kWh/m²·year
•Indoor comfort range: 20–25°C year-round

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Passive Buildings in Mediterranean / Greek Climate

Advantages
•Excellent performance in south-oriented plots
•Significant reduction in cooling energy when properly shaded
•Very low operational costs
•Increased property value

Challenges
•Summer overheating risk
•Requires external shading, solar control glazing, night ventilation
•Higher initial construction cost (+15%)