Browse Forums Building A New House Re: Carlisle KDR site cost after second soil test 7Sep 25, 2023 3:31 pm ponzutwo There are typically two classifications on a Geotech report for a KDRB. Soil and site. There is no "P" for soil classification. The P refers to the Site. You can have M soil and still have a "P" site. The P site acts as a flag to the footing designer to take into consideration features of the site in thier design. There are differing moisture conditions across the block of a KDRB due to house footprint, trees etc. It would be unusual for your geotech report not to call out a P site for a KDRB. here is the wording from the report: 5.0 SITE CLASSIFICATION This site is classified as Class S in accordance with AS2870 – 2011. Any SITE CUTTING or FILL PLACEMENT has the potential to alter areas of the site which may be affected by abnormal soil moisture conditions. It may also alter appropriate footing types. Where CUT or FILL works occur, this office must be supplied with accurate details to ensure that the SITE CLASSIFICATION and FOOTING ADVICE remain appropriate. Estimated maximum surface movement which may potentially occur within the construction envelope is 20mm. The testing was done about a month or 2 after demo if memory serves me. Re: Carlisle KDR site cost after second soil test 8Sep 25, 2023 9:30 pm With a "S" classification you should either have a significant sand profile or shallow rock. If the sand isn't dense enough then you will need deep piers or screw piles which will be an extra cost. If it is shallow rock you will have extra costs if you need s site cut into rock and plumbing trenching etc which will cost more digging through rock. Re: Carlisle KDR site cost after second soil test 9Sep 28, 2023 4:37 pm We were lucky in that our old house was so small (86 square metres) compared to the new house, they were able to take enough readings around the old backyard house before it was demolished - so we had geotech report done 9 months before we moved out. That said Perth is a different kettle of fish - our site costs were 10k! Three options 1 Ask the liquidator 2 Find another PD customer and ask the source of their report 3 Pay for new report 3 13733 Hi Building Expert, Thank you for the feedback, much appreciated, there is also a code of conduct for building surveyors which they need to follow as well. I am looking… 4 3836 PM me your email. I have a build excavation calculator you can use based on your plans to double check what your builder is telling you. Cheers Simeon 1 10501 |