Tips, site reports
& news.
Architectural trends, site reports and practical tips — our experts share their knowledge.
Technical insights and practical guidance for building in Luxembourg
The Terrexo Journal brings together project case reports, technical guides, and regulatory analysis produced by our in-house engineers and site supervisors. Our mission is to provide homeowners and property investors in Luxembourg with clear, rigorous, and actionable insights to guide their residential transformation projects.
From decoding changes in state Klimabonus subsidies to navigating municipal building regulations (PAG/PAP), building physics, and sustainable material selection, we share field-tested knowledge gained from over 150 delivered projects.
Four pillars of high-performance residential renovation in Luxembourg
1. Comprehensive energy retrofits: high-performance envelope insulation (roofs, external ETICS, triple glazing), certified airtightness, heat recovery ventilation (MVHR), and properly sized heat pumps.
2. Urban extensions and vertical additions: narrow-plot space optimization, party-wall coordination, lightweight timber/CLT framing, and architectural skylighting.
3. Loft conversions & attic transformations: dormer construction, high-density bio-based insulation for summer heat protection, and bespoke under-eave living spaces.
4. Bespoke architectural joinery & master cabinetry: custom kitchen architecture, built-in dressing rooms, integrated bookcases, and space-saving furniture.
Key questions about renovating and extending in Luxembourg
When is an OAI-registered architect legally required in Luxembourg?
An accredited OAI architect is required for projects modifying structural load-bearing elements, increasing gross built floor area through extensions, or altering building envelopes subject to municipal building permits.
How can Klimabonus grants be combined with the 3% VAT housing rate?
Direct Klimabonus financial aid can be fully combined with the super-reduced 3% VAT rate on qualifying residential renovation works, provided a certified pre-construction energy audit is performed by an accredited energy advisor.
What is the typical processing timeframe for municipal building permits?
Permit review timelines generally range from 4 to 12 weeks depending on the municipality and site classification (e.g., protected historical zones or PAP areas). Pre-validating designs against local PAG rules prevents delays.
What are the primary benefits of engaging a single turnkey general contractor?
A single turnkey contractor eliminates inter-trade coordination conflicts, ensures smooth sequential delivery, centralizes warranty liability (garantie décennale), and guarantees fixed-price cost control.
Your project,
let's talk.
A quote, a site visit, a single point of contact. Book online.