2. Existing homes on flood plains
Baseline
Existing homes at risk of flooding, number	69000	107000	129000	140000	157000	602000
Option X
Total cost of retro-fitting flood resistance and/or resilience measures, /home	15000	15000	18000	20000	20000	20000
Cap on cost to be paid by household, /home	1000	5000	10000	15000	15000
Subsidy from general taxation, /home	14000	10000	8000	5000	5000
Tax revenue available each year, million pa	200	100	100	50	50	500
3. Benefit to households of improved flood resistance and/or resilience
Number of households receiving a subsidy, number pa	14286	10000	12500	10000	10000	56786
Proportion of these homes flooding each year, % pa	1.40%	1.40%	1.40%	1.40%	1.40%
Number of these homes flooding each year, number pa	200	140	175	140	140	795
Average reduction in flood damage per household due to flood-resilience measures funded by the subsidy net of cost to household of the improvements, pa	19,000	15,000	10,000	5,000	5,000
Aggregate benefit from the subsidies, million pa	3.8	2.1	1.8	0.7	0.7	9
Equity weighting	2.25	1.45	1.05	0.75	0.45
Equity weighted benefit from subsidies, million pa	8.6	3.0	1.8	0.5	0.3	14
Benefits of subsidy after equity weighting, million pa						0.0