This 4-bedroom detached at 107 Rowanbyrn, Blackrock, Dublin, Dublin, A94 A786 was sold on 2021-11-18 for €830,000, according to the Property Price Register. The home has a floor area of 118 m², a BER energy rating of D2, built in 1973.
Rough estimate based on the BER cert's primary energy band — covers the four 'regulated services' SEAI DEAP measures: space heating, hot water, lighting, ventilation. It does NOT include appliances, cooking, IT equipment, or real-life usage variance (occupancy, comfort temperature, hours at home). Actual bills will differ.
2026-05 Irish retail unit prices (Switcher.ie / SEAI Domestic Fuels Q4 2025): Mains Gas €0.10/kWh · Heating Oil €0.10/kWh · Electricity €0.30–€0.40/kWh (smart vs standard) · LPG €0.15/kWh · Solid fuel €0.06–€0.09/kWh. ±15% margin on non-electric. Standing charges: €300/yr electricity meter, +€360/yr if gas is connected.
Calculation: 280 kWh/m²/yr × 118 m² = 33,040 kWh/yr (primary energy from the BER band). Primary → delivered uses SEAI DEAP factors (fossil ~1.10, electric ~2.08). Delivered kWh then splits 85% main fuel (Mains Gas) + 15% electricity (lighting + ventilation always run on grid), with standing charges added. The fuel choice is the mode from this Small Area's BER records — single-property accuracy isn't guaranteed.