Key Indicators & Decisions (KI&Ds) – Belgium – Walloon Region – 2020

01.01

Definition of public buildings (according to article 9 b)

Buildings occupied by:

1 ° European and international institutions, federal, regional, community, provincial and municipal authorities;

2 ° any organisation meeting the following conditions:

a) created or approved by the authorities referred to in 1 °;

b) responsible for a public service;

c) not part of the legislative or judicial power;

d) controlled or determined in its operation by the authorities referred to in 1 °

01.02

Definition of public buildings used by the public (according to article 13)

Public buildings (see 01.01) are frequently visited by the public when their access to the public is free, without any condition other than a possible registration or a possible payment of an entrance fee.

01.03

Number of residential buildings

+/- 1,600,000 dwellings

+/- 1,348,000 buildings

01.04

Number of non-residential buildings

+/- 75,400 buildings

01.05

If possible, share of public buildings included in the number given in 01.04

+/- 31,700 buildings

01.06

If possible, share of commercial buildings included in the number given in 01.04

+/- 19,400 buildings

01.07

Number of buildings constructed per year (estimate)

+/- 8,100 buildings

01.08

If possible, share of residential buildings constructed per year (estimate, included in the number given in 01.07)

+/- 6,800 buildings

01.09

If possible, share of non-residential buildings constructed per year (estimate, included in the number given in 01.07)

+/- 1,300 buildings

01.10

Useful floor area of buildings constructed per year in million square meters (estimate)

+/- 3 Mm²

02.01

Are building codes set as overall value, primary energy, environment (CO₂), reference building or other?

 Residential: absolute kWh/m² primary energy indicator (E_spec) + relative primary energy indicator (E_W)

Non-residential: relative primary energy indicator (E_W)

02.02

Requirements for energy performance of residential buildings in current building code

E_spec ≤ 115 kWh/m² and E_W ≤ 65

02.03

Requirements for energy performance of non-residential commercial buildings in current building code

Interpolation based on surfaces between E_W ≤ 65 and E_W ≤ 90, depending on functional parts present in the unit

02.04

Requirements for energy performance of non-residential public buildings in current building code

Interpolation based on surfaces between E_W ≤ 45 and E_W ≤ 90, depending on functional parts present in the unit

02.05

Is the performance level of nearly zero energy (NZEB) for new buildings defined in national legislation?

Yes

02.06

Nearly zero energy (NZEB) level for residential buildings (level for building code)

E_spec ≤ 85 kWh/m² and E_W ≤ 45

02.07

Year / date for nearly zero energy (NZEB) as level for residential buildings (as indicated in 02.04)

For building permits from 1 January 2021 onwards

02.08

Nearly zero energy (NZEB) level for all non-residential buildings (level for building code)

Interpolation based on surfaces between E_W ≤ 45 and E_W ≤ 90, depending on functional parts present in the unit

02.09

Year / date for nearly zero energy (NZEB) as level for non-residential buildings (as indicated in 02.06)

For building permits from 1 January 2021 onwards

02.10

Are nearly zero energy buildings (NZEB) defined using a carbon or environment indicator?

No

02.11

Is renewable energy a part of the overall or an additional requirement?

No RES requirement

02.12

If renewable energy is an additional requirement to NZEB, please indicate level

N.A.

02.13

Specific comfort criteria for new buildings, provide specific parameters for instance for airtightness, minimum ventilation rates

• Types of eligible ventilation systems are described, and minimum flow rates are prescribed
• Overheating criterion
• No specific criteria for airtightness

03.01

Is the level of nearly zero energy (NZEB) for existing buildings set in national legislation?

No

The next LTRS version (10 March 2020) will set an average criterion on the building park. This strategy will have to be approved by the Walloon Government in 2020

03.02

Is the level of nearly zero energy (NZEB) for existing buildings similar to the level for new buildings?

Yes. For existing buildings, this will be an average requirement for the building stock that must be fulfilled by 2050. It will be the same E_spec value as for new buildings.

Other new buildings criteria (by example: K-level, …) will not be set for existing buildings.

03.03

Definition of nearly zero energy (NZEB) for existing residential buildings (if different from new buildings)

Same as for new buildings

03.04

Definition of nearly zero energy (NZEB) for existing non-residential buildings (if different from new buildings)

NZEB requirement for non-residential needs to be reshaped to use E_spec instead of E_W.

03.05

Overall minimum requirements in case of major renovation

The building unit should aim to reach Class A (E_spec ≤ 85 kWh/m²) by 2050.

An individual renovation roadmap will show the way to go for the building.
The building passport will monitor the path taken by the buildings’ stock on its way to 2050.

03.06

Minimum requirements for individual building parts in case of renovation

Same U_max values as for new buildings.

Partial ventilation flow rates in case of wall replacement and addition/replacement of windows

It is planned that every building will have an individual renovation roadmap with a Class A goal. The auditor performing the analysis must justify if Class A is not reachable and needs to stay as close as possible to Class A.

Works on individual building parts will have to be coherent with the roadmap.

03.07

National targets for renovation in connection to Long Term Renovation Strategy (number or percentage of buildings)

The residential building stock must be 'Class A' (E_spec ≤ 85 kWh/m²) on average; impact expected on all buildings.

03.08

National targets for renovation in connection to Long Term Renovation Strategy (expected reductions and relevant years)

Reduction of the energy consumption (EPB-related uses of energy) of residential buildings by 62% compared to 2005.

04.01

Number of energy performance certificates per year (for instance average or values for of 3-5 years)

2019: 60,299
2018: 60,807
2017: 62,023

04.02

Number of EPCs since start of scheme

By late 2019:
existing residential buildings: 596,904
new residential buildings: 53,870

04.03

Number of EPCs for different building types

Residential buildings (new + existing): 650,774

04.04

Number of assessors

Existing residential buildings: +/- 1,780
Public buildings: 160

04.05

Basic education requirements for assessors

Several specific diplomas, mainly: Architects, Engineer, Bachelor’s in construction, or two (2) years of relevant experience in the energy aspects of buildings

04.06

Additional training demands for assessors

Mandatory training + examination

04.07

Quality assurance system

Performed by administration

04.08

National database for EPCs

Yes

04.09

Link to national information on EPCs / Database

Not publicly available

05.01

Is there a national definition of smart buildings?

No

05.02

Are there current support systems for smart buildings?

No

05.03

Are there currently specific requirements for technical building systems (for instance in building codes)?

Yes

Heating, DHW, AC & Ventilation - only for existing buildings

05.04

Are there current requirements for automatics (for instance in building codes)?

 No

There will be something by 2020 due to transposition of Directive (EU) 2018/844.

05.05

Chosen option A or B for heating systems (inspection or other measures)

Option A

05.06

Number of heating inspections; reports per year (if option A)

About 760,000 reports must be issued per year for boilers.

05.07

Chosen option A or B for cooling systems (inspection or other measures)

Option A

05.08

Number of air-conditioning / cooling system inspections; reports per year (if option A)

Inspection has not yet begun

05.09

Is there a national database for heating inspections?

No

It is planned, with a link to the building passport.

05.10

Is there a national database for cooling / air-conditioning inspections?

No

It is planned, with a link to the building passport.

05.11

Are inspection databases combined with EPC databases for registration of EPCs and inspection reports?

No

EPC & Inspections will be registered in independent databases.

05.12

Link to national information on Inspection / Database

Not yet

The building passport will summarise and give access to all the information about a building unit.