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EPBD Portugal 2026–2033: The Complete Energy Compliance Guide

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Certificado Energético · ADENE · Portugal 2026

Portugal's Energy Class Scale

How the Certificado Energético classifies every Portuguese property — and what share of national residential stock sits in each class.

Certificado Energético — Class Scale
A+ (most efficient) → G (least efficient) · All residential property in Portugal
Logo
A+
Class A+
Highly efficient - near zero energy
A
Class A
Very efficient - new construction standard
B
Class B
Efficient - renovated or post-2000 stock
C
Class C
Above average - 1980s-90s construction
2033 minimum — Class D required
D
Class D
Average - legal minimum from 2033
E
Class E
Below average - pre-1975 common stock
F
Class F
Poor - faces 2030 sale restriction
G
Class G
Worst - rental ban active January 2026

Source: ADENE / HomeOS analysis · Updated 2026 · Stock percentages are approximate national residential estimates

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EPBD Directive 2024/1275 · Portugal Compliance

Portugal's Energy Compliance Timeline & Class Rating Scale

Buying a Class F or G property in Portugal is not just buying an inefficient building — it is buying a mandatory renovation project with legally binding deadlines.

EU Energy Rating Scale
A+ (most efficient) → G (least efficient)
A+
Highly efficient
No retrofit needed
Safe
A
Very efficient
No retrofit needed
Safe
B
Efficient
No retrofit needed
Safe
C
Above average
€0–€5k optional
Safe
2033 minimum — Class D
D
Average — legal minimum by 2033
€0–€5k to upgrade to C
Target
E
Below average
€5k–€15k to reach D
Attention
F
Poor — sale restrictions 2030
€15k–€45k retrofit
Risk
G
Worst — rental restrictions NOW
€45k–€80k+ retrofit
Critical
EPBD Directive 2024/1275 · Mandatory milestones
Three Binding Deadlines
The EPBD creates hard deadlines that affect the value, rentability, and saleability of every property you buy today.
You are here — 2026
Jan 2026
Class G rental restrictions begin
Class G properties may no longer be offered for new rental contracts. Already in force.
GRental restrictions now active
2030
Class F & G face sale restrictions
From 2030, Class F and G properties cannot complete a sale without being upgraded to at least Class E first.
FG€15k–€80k+ retrofit CAPEX
2033
All properties must reach minimum Class D
Every residential property in Portugal must achieve a minimum Class D energy rating.
EFGMinimum Class D required
Post-2033
Compliant stock — green premium applies
Class D and above — no EPBD restriction. Energy-efficient properties command an 8–18% green premium.
A+ABCDGreen premium applies
C–D
€0–5k
Optional upgrades only. No mandatory EPBD obligation.
E
€5–15k
Heating upgrades, partial insulation. 2033 deadline applies.
F
€12–100k+
Windows, insulation, heating system. Varies by property size.
G
€18–150k+
Full envelope retrofit. Villa 180m²+ can exceed €150k.

HomeOS's AIRCS score quantifies your EPBD retrofit liability before purchase — modelling estimated CAPEX based on the property's current energy class, size, and regional climate zone.

HomeOS flags energy liability before you sign
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EPBD Directive 2024/1275 · Risk Matrix · Portugal

EPBD Deadline Impact Table

Three binding deadlines. Each one removes a right from non-compliant property owners. The financial consequences are quantifiable and already materialising.

Deadline
Status
Restriction & Affected Classes
Financial Consequence
HomeOS Impact
2026Jan 2026
Active Now
Class G Rental Ban
G

Class G properties cannot be legally rented under new or renewed tenancy agreements. Rental income stream legally removed until renovation to Class F minimum.

Immediate loss
Rental income gone until renovation complete. Renovation to Class F: EUR18k-EUR40k for typical apartment.
AIRCS flag
Desconto castanho -12-20%. HomeOS models rental income loss and CAPEX before purchase.
20304 Years
4 Years
Class F & G Sale Restriction
FG

No escritura - no title transfer - can be completed on a Class F or G property. Property effectively unsellable without prior renovation to minimum Class E.

Sale blocked
Property cannot change ownership. Mortgage lenders already applying higher LTV restrictions on Class F assets.
AIRCS flag
Desconto castanho -6-12%. HomeOS AICF adjusts declared price for embedded discount before offer.
20337 Years
7 Years
Class D Minimum - All Properties
EFG

Every residential property in Portugal must reach minimum Class D. No exemptions - age, location, primary residence, or ownership type.

Mandatory CAPEX
EUR12k-EUR150k+ depending on property size and starting class. No opt-out. Applies to 75%+ of national stock.
AIRCS flag
HomeOS models exact Class D renovation pathway and CAPEX before purchase commitment.

Source: EPBD Directive 2024/1275 | Modelled by HomeOS AIRCS · homeos.pt

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75% of Portuguese homes are Class E or below. If you are buying pre-1980 Portuguese stock, assume EPBD liability unless the Certificado Energético shows otherwise.

HomeOS maps your property to every EPBD deadline — in euros, before you sign
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Desconto Castanho · Prémio Verde · HomeOS Coined Terms

Brown Discount & Green Premium Spectrum

Approximate price adjustment vs. comparable Class D property — Portugal major urban markets 2026.

A+
+12-18%
A
+8-14%
B
+4-8%
C
+1-4%
D
Baseline0%
E
-3-5%
F
-6-12%
G
-12-20%
HomeOS baseline
Prémio verdePremium for efficient classes
Discount for inefficientDesconto castanho

Source: HomeOS Data Network Engine / ADENE / European Commission. Class D = 0% baseline.

-12-20%Class G discount vs. Class D (Portugal major markets)
6-12%Class F discount today - widens toward 2030
0%HomeOS baseline - Class D
HomeOS calculates your property's exact price impact — before you sign
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EPBD Renovation Pathway · Class Upgrade

Renovation ROI — Class F → Class B

Before / after financial card — CAPEX, prémio verde uplift, and net position.

Class journey
F→B
Step 1 - Before
Desconto castanho

Class F trades at -6-12% vs. Class D. Embedded discount in purchase price.

→
Step 2 - CAPEX
EUR18k-EUR55k

Typical F to B pathway: insulation, glazing, heat pump. Varies by size.

→
Step 3 - After
Premio verde +4-8%

Class B commands premium over Class D. HomeOS models net position before you buy.

HomeOS models your exact renovation pathway and net ROI — before you sign
AIRCS score · EPBD CAPEX · No property visit required
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Desconto Castanho · Prémio Verde · Portugal 2026

Price Impact by Energy Class

Relative to Class D baseline (0%) · Portugal major urban markets

Energy ClassSale Price vs. Class DEPBD / Status
A+
Class A+
+12-18%
Fully compliant
A
Class A
+8-14%
Fully compliant
B
Class B
+4-8%
Fully compliant
C
Class C
+1-4%
Fully compliant
D
Class D
Baseline 0%
Compliant to 2033
E
Class E
-3 to -5%
Renovation by 2033
F
Class F
-6 to -12%
High EPBD risk
G
Class G
-12 to -20%
Critical exposure

HomeOS AIRCS models the exact desconto castanho for any specific property based on location, size, condition, and renovation pathway.

HomeOS calculates your property's exact price impact — before you sign
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EPBD Renovation Pathways · Portugal 2026

Renovation Cost Matrix

Typical intervention costs and estimated ranges by property size.

Apartment 60-100m2
Urban - Typical pathway
  • ETICS (external insulation)
  • Glazing / window replacement
  • Heat pump installation
  • Roof insulation
F to D / G to DEUR18k-EUR80k+
Moradia / Villa 120-200m2
Full envelope - Higher CAPEX
PathRange
F→DEUR35k-EUR100k+
G→DEUR45k-EUR150k+
Typical totalEUR35k-EUR150k+
HomeOS models exact Class D renovation pathway and CAPEX before purchase
AIRCS score · EPBD retrofit CAPEX · No property visit required
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HomeOS Product · EPBD Cost-to-Comply

The AIRCS Score Explainer

Asset Integrity and Regulatory Compliance Score — four dimensions in one score (0–100).

Composite score
0-100
AIRCS - HomeOS
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HomeOS
Property Intelligence
Energy
EPBD class, deadline exposure, retrofit CAPEX
Physical
Condition, unpermitted works risk
Regulatory
Simplex 2024, Licenca, encumbrances
Valuation
Desconto castanho, AICF adjustment
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45/100

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High Risk

guides.epbdCompliance.sections.aircsScore.scoreCard.energyCompliance35/100
guides.epbdCompliance.sections.aircsScore.scoreCard.physicalCondition40/100
guides.epbdCompliance.sections.aircsScore.scoreCard.regulatoryCompliance50/100
guides.epbdCompliance.sections.aircsScore.scoreCard.marketValuation55/100

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HomeOS Compliance Calendar

Track every EPBD deadline per property — class, deadline, status, and estimated CAPEX.

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Your properties - EPBD deadlines
Dashboard preview
Action needed
G
Lisbon - Rua Example 12
Rental restricted
2026
€45k
F
Porto - Av. Example 5
Sale restriction
2030
€28k
E
Algarve - Lote 7
Renovate to D
2033
€12k
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2026Class G rental ban - active now
2030Class F & G sale restriction
2033Minimum Class D for all properties

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