Time now for the next part of the Draft on sustainable construction brought to you by Builderscrap.com. Today we reflect on the previous posts and scrutinise the time frames given.

Q: Do the targets and milestones appear realistic, achievable and sufficiently ambitious over the time frames envisaged? If not, then please suggest alternatives, and who should be responsible for their implementation.

1. Around 75% of respondents who answered this question agreed that the proposed targets were realistic and achievable. A smaller proportion (15%) favoured more challenging targets.

2. The only comment on the first target (All new homes built with English Partnerships or Housing Corporation funding to meet Level 3 of the Code for Sustainable Homes (105 litres per person per day) from April 2008) was that there should be a link to the higher levels of the Code for Sustainable Homes.

3. A small number of respondents to the second target felt that the target level of litres per head/ per day set in the Building Regulations in 2008 should be 100 litres/head/day and not, as proposed, 125 litres/head/day.

4. Some respondents felt that the fourth target (reduction in water consumption by 25% on office and non-office estate by 2020 relative to 2004/05 levels) needed greater clarity.