EPC Target 150 (the 2045 cap) in Brussels: is your class enough?
By 2045, all Brussels dwellings will aim for 150 kWh/m²/year maximum — i.e. class C minimum. Everyone talks about the 2033 deadline ; the real challenge is this 2nd step. Especially for class D homes, compliant today but not for 2045.
275 → 150: why a 2nd step?
The Brussels EPC reform does not stop at 2033. It sets out two successive steps to lower the energy consumption of the entire residential stock. The first gets a lot of coverage ; the second much less — and it is the one that will demand the most effort.
Maximum 275 kWh/m²/year, i.e. class E minimum. Classes F and G are removed from the residential stock.
Maximum 150 kWh/m²/year, i.e. class C minimum. A threshold almost twice as demanding as the 2033 one.
Good to know: 31 December 2045 is the 'at the earliest' deadline for target 150. The exact date still has to be set by the regional Government. The trajectory itself is confirmed. (Source : Brussels Environment.)
Want the full timeline of the reform (entry into force 2028, sanctions, new buildings) ? It is all detailed in our complete guide to the EPC reform 2033. Here, we focus on the 2045 step and on what you should do.
The class D trap
Here is the point many owners miss : a class D home (between 150 and 210 kWh/m²/year) is perfectly compliant for 2033… but off target for 2045. Compliant today, non-compliant tomorrow — without knowing it.
Below 275 kWh/m²/year, a class D home triggers no obligation by the 2033 deadline. All seems fine… on the surface.
For the 150 kWh/m²/year step, you must reach class C. A class D home must therefore gain at least one class — which means works.
The risk is not the immediate fine, it is the late surprise : discovering a few years before the deadline that a renovation is still needed, precisely when every other owner wakes up and demand on the renovation market is at its peak (lead times, prices, availability of contractors).
Is your class enough for 2045?
Your EPC certificate shows your class (A+ to G) and your consumption in kWh/m²/year. Here is, class by class, where you stand against the 2045 target 150:
You already meet the 2045 target. An up-to-date EPC certificate lets you prove it and add value to the property when selling or renting.
Improvement works will be needed to reach class C. The earlier it is planned, the more it can be spread out. An energy audit identifies the priorities.
Don't know your class? A certified assessor establishes it after a visit, with the certificate sent within 24 to 48h. Prices from €125 incl. VAT. An EPC certificate remains valid for 10 years.
Renovate now or wait until 2045?
2045 seems far away. But for a class D or E home, waiting until the last minute is rarely the right strategy. Here is how to decide:
Anticipating lets you spread works over several years instead of financing everything at once near the deadline.
As 2045 approaches, demand for renovation companies will rise. Acting early = better lead times and better prices.
A better EPC already means a higher resale value and easier letting today. The benefit is immediate, not just in 2045.
The right reflex: don't renovate 'blindly'. First have your actual class established, then prioritise works by their real impact on the EPC and your budget. That is exactly the role of an energy audit.
Where to start
Three simple steps to calmly prepare your property for target 150:
Know your class with an up-to-date EPC certificate
That is the starting point: knowing exactly where you stand in kWh/m²/year. AL Energy delivers the EPC certificate from €125 incl. VAT, appointment within 48h, certificate received by email before the visit ends.
Prioritise works with an energy audit
The energy audit (+€50 on top of the certificate) identifies the works with the biggest impact on your EPC and the order in which to carry them out to aim for class C.
Plan by impact and activate the support
The order usually recommended is roof & floors → walls → heating → windows, but the optimal order depends on your home. Support in Brussels: 6% VAT (homes over 10 years old), property tax (précompte immobilier) reduction after renovation, and free guidance via Homegrade.
Support evolving: the regional renovation support scheme is being reformed in 2026. Always check the current amounts and conditions on environnement.brussels or with Homegrade before starting works.
Frequently asked questions about EPC target 150
What is the EPC target 150 in Brussels?
It is the second step of the Brussels EPC reform: by 31 December 2045 (at the earliest), all dwellings in the Region must consume no more than 150 kWh/m²/year, i.e. class C or better. It follows the target 275 (class E minimum) set for 2033.
Is the 2045 date certain?
31 December 2045 is the 'at the earliest' deadline. The exact date still has to be set by the Brussels-Capital regional Government. The trajectory is confirmed, but the final calendar may still be refined: anticipating is therefore advisable.
I am class D: am I compliant for 2045?
No. A class D home (between 150 and 210 kWh/m²/year) meets the 2033 target but exceeds the 2045 target. This is the 'class D trap': compliant today, but works will be needed to reach class C before the deadline.
Which EPC class must I reach for target 150?
At least class C, i.e. consumption below 150 kWh/m²/year. Dwellings rated A+, A, B or C are already compliant. Classes D to G must undergo energy improvement works.
Should I renovate now or wait until 2045?
Anticipating is usually more advantageous: you spread the investment, you avoid pressure on the renovation market near the deadline, you benefit from current support (6% VAT, property tax (précompte immobilier) reduction, free guidance via Homegrade) and you add value immediately to your property. Start with an energy audit to prioritise works.
Does target 150 also apply to owner-occupiers?
Yes. The Brussels EPC reform applies to the entire residential stock, including owner-occupied homes — not only when selling or renting. For the full timeline and the dwellings concerned, see our guide to the EPC reform 2033.
Official sources
- EPC objectives per dwelling — Brussels Environment (2033 and 2045 targets)
- Official Brussels EPC register (consult certificates)
- Homegrade (free guidance for Brussels residents on renovation)
Disclaimer: the information on this page is based on the official texts in force at the publication date (6 June 2026). The target 150 (2045) deadline still has to be confirmed by the regional Government and the regulation may evolve. Always check the latest updates on the official websites before any decision on works or sale.
Anticipate EPC target 150 today
Know your class and prioritise your works: EPC certificate from €125, energy audit as an option (+€50). Our 2 certified assessors come within 48h across the 19 municipalities of Brussels.
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