Solar Panel Costs by Property Type

Terraced Houses

Typical system size: 3-4kW (8-10 panels) Average cost: £5,500-£7,500 Considerations:

• Limited roof space may restrict system size
• Party wall regulations for scaffolding
• Often east/west orientation (dual arrays work well)
• Typically lower electricity usage = smaller system needed

Best value option: 3.5kW system with 5kWh battery

Semi-Detached Houses

Typical system size: 4-6kW (10-15 panels) Average cost: £6,500-£9,500 Considerations:

• Good roof space on both pitches
• Often south-facing rear elevation
• Popular with families = higher usage
• EV charger integration common

Best value option: 5kW system with 10kWh battery

Detached Houses

Typical system size: 6-10kW (15-25 panels) Average cost: £8,500-£14,000 Considerations:

• Maximum roof space available
• Multiple roof pitches possible
• Higher electricity consumption
• Often good for heat pump integration

Best value option: 8kW system with Tesla Powerwall

Bungalows

Typical system size: 4-8kW (10-20 panels) Average cost: £6,500-£11,000 Considerations:

• Excellent roof accessibility (lower scaffolding costs)
• Large single-storey footprint
• Often occupied by retirees (high daytime usage)
• Perfect for battery storage

Best value option: 6kW system with 13kWh battery

New Build Properties

Typical system size: 2-4kW (existing) + upgrade Average cost: £3,500-£6,000 (upgrade only) Considerations:

• Often have small developer-installed systems
• Upgrading panels and adding battery popular
• Modern electrics = easy integration
• SAP calculations may limit system size

Best value option: Upgrade existing panels + add battery