john0wingnut

all very valid points....... Im still playing with mine 2 years down the line. I had mine serviced yesterday, and the chap was basically saying that I should set my stats to 20 degress (chosen temp), have the temperature differential on those at 1 degree and then change the curve accordingly down to the lowest flow temp which allows the temperature to be maintained. I currently have mine setup to utilise E7 tariff, so both the hot water and heating (21 degrees) comes on between 00:30 and 07:30 and then again in the evening between 16:00 and 19:30. The stats currently have a 0.5 degree differential During the day my PV charges my Powerwall, which then covers off the electricity later in the day, but the ASHP tanks it quite quickly, during the 16:00 - 19:30 session and then Im on the grid again. House seems to hold its temp pretty well, so I am wondering whether to follow this guys advise, but with a slight twist that I up the required temperature during E7 time, say to 22 degrees, to get more heat into the slab, then from 07:30, set it back to the 20 degrees again until 00:30

Hi all New to the forum. Bought a little Bungalow a few years back with an acre field, and extended it / renovated it, to make it it more efficient - ASHP, Solar Thermal, 7Kw PV, Tesla Powerwall.......... I am now looking at getting permission to build one house on the field and will be going after passive house standards. Initial conversations with a local design firm, who know the Bedford planning side of things well have indicated it will likely go to appeal as the land is classed as agricultural and is outside the settlement envelope, but, Bedford dont currently have a confirmed 5 year housing supply, and a few appeals were won on this basis................ so we shall see John

.......... just noticed you are doing an extension not a new self build. You can still get an exemption, as per the below: Exemptions for residential annexes and extensions What are the criteria for obtaining an exemption for a residential annex or residential extension? People who extend their own homes or erect residential annexes within the grounds of their own homes are exempt from the levy, provided that they meet the criteria laid down in regulations 42A and 42B (inserted by the 2014 Regulations and amended by the 2019 Regulations): the main dwelling must be the person’s principal residence, and they must have a material interest in it (as defined in regulation 4(2)); residential annexes are exempt from the levy if they are built within the curtilage of the principal residence and comprise one new dwelling; and residential extensions are exempt from the levy if they enlarge the principal residence and do not comprise an additional dwelling. There is no requirement for the occupier of the annex to be related to the owner of the main dwelling, or to commit to staying there for a specified period. But letting the residential annex, or selling it separately from the main dwelling, within the 3-year claw-back period which commences from the date of the compliance certificate relating to the residential annex, will result in the exemption being withdrawn. Residential extensions under 100 square metres, which are not part of a development which creates a new dwelling, are already exempt from the levy under the minor development exemption. Paragraph: 049 Reference ID: 25-049-20190901 Revision date: 01 09 2019

Thats odd. The updated guidance is quite clear that you can obtain a Self Build Exemption. I starting my planning application and looked into the revised guidance, which I have pasted below: How does the self-build exemption work (for a whole new home)? If the necessary qualification requirements are met and the application process is completed within required timescales, an exemption from the Community Infrastructure Levy will be available to anybody who is building their own home or has commissioned a home from a contractor, house builder or sub-contractor. Individuals benefiting from the exemption must own the property and occupy it as their principal residence for a minimum of 3 years after the work is completed. Paragraph: 082 Reference ID: 25-082-20190901 Revision date: 01 09 2019 What are the specific requirements to qualify for a self-build exemption? A self-build housing exemption is available to anyone who builds or commissions their own home for their own occupation. On completion, they must provide the requested supporting evidence, and the property must remain their principal residence for a minimum of 3 years. If personal circumstances change and the applicant wants to dispose of the property before the 3-year occupancy limit expires, they must notify the charging authority and the levy then becomes payable in full. Failure to notify the charging authority will result in enforcement action against the applicant and surcharges will become payable. View more information on disqualifying events. Full details are set out in regulations 54A, 54B, 54C and 54D as inserted by the 2014 Regulations. Regulation 54B was amended by the 2019 Regulations. Paragraph: 086 Reference ID: 25-086-20190901 Revision date: 01 09 2019