Portsmouth: the EPC C compliance gap

9,753 privately rented properties in Portsmouth are rated D–G on their

latest Energy Performance Certificate. Every one is legally required to reach

EPC C by October 2030 (fines up to £30,000 per property), and most qualify for

government funding (£7,500 Boiler Upgrade Scheme; Warm Homes grants).

Source: official EPC register, latest certificate per property. 27,085 D · 5,804 E · 751 F · 245 G (all tenures D–G in Portsmouth: 33,885).

What their certificates say they need

Recommended measure (rented D–G only)Properties
Cavity wall insulation6,863
Solar photovoltaic panels, 2.5 kWp5,132
Solar water heating4,405
Floor insulation (suspended floor)3,923
Low energy lighting for all fixed outlets3,300
Upgrade heating controls2,865
50 mm internal or external wall insulation1,820
Increase loft insulation to 270 mm1,709
Floor insulation (solid floor)1,616
Replace boiler with new condensing boiler1,595

Work by trade

TradeRecommended measures outstanding
Insulation18,550
Solar9,537
Heating6,264
Other5,533
Glazing650

Where (top postcode sectors, rented D–G)

SectorPropertiesSectorProperties
PO4 01,279PO4 9958
PO5 1860PO5 2849
PO1 5649PO5 3641
PO2 7588PO4 8516
PO2 8483PO2 0434

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*Data: gov.uk EPC open data (latest certificate per property, deduplicated).

Postcode-sector level shown; property-level data available in the feed.*