Understanding the perceived stimuli and barriers by private homeowners is key knowledge to realise effective climate adaptive policy and consequently the adoption of SSCAM by homeowners. Q-methodology was used to unravel the perspectives of 25 homeowners from the Vruchtenbuurt, Den Haag and Hillegersberg-Zuid, Rotterdam on climate adaptation. The Model of Proactive Private Adaption to Climate Change structured the Q-methodology and was complemented with a policy analysis into climate adaptive policy of Den Haag and Rotterdam and a literature review of SSCAM. Four perspective groups, called factors, were identified amongst homeowners, : 1) Major problem, but what is the solution?!, 2) Together we make it better!, 3) I don't know how I am part of a solution and 4) Act when it is needed. The diversity of homeowners' perspectives implies no one-size-fits-all solution exists to stimulate adoption of SSCAM, two policy instruments which take this into account are proposed. Firstly, an extensive communication strategy is advised which clarifies the need for climate adaptive measures, establishes a relation with homeowners and stimulates homeowner's participation through an adaptive network. This should be complemented with an enabling instrument for garden and roof SSCAM, which can be tailored to the different barriers and stimuli perceived by the perspectives.

Cape Town is a city with over four million people and a growing population. Due to three consecutive dry summers as a result of climate change, a growing population and an increased per capita water demand, the city’s main water supply was nearly depleted. Cape Town depends for 98% on surface water stored in dammed reservoirs, which is replenished by rainfall. There is a temporal mismatch between water availability and peak demand, and thus harvesting rainfall can be potentially become an additional source of water. Cape Town’s urban drainage system has 737 detention ponds, which are used to attenuate flooding in case of heavy rain events. These ponds can be used to harvest the stormwater and store it in the Cape Flats aquifer using managed aquifer recharge for seasonal availability. The complexity of retrofitting stormwater ponds into infiltration ponds calls for a systematic approach. This research offers a retrofitting framework for the context of Cape Town. The framework can be used to determine suitable detention ponds to allow managed aquifer recharge via infiltrating stormwater, and to retrofit these detention ponds into infiltration ponds. The framework consists of three phases; spatial assessment, physical assessment and conceptual design. It is highly flexible in usage due to the fact that every phase can be used separately. Additionally, the framework can be extended to include important socio-economic aspects. Following the framework standardizes the procedure of obtaining data on individual ponds, which allows for objective comparison in assessing their suitability for infiltration.