EH RESPONSE TO CONSULTATION REFERRAL FROM PLANNING: DEVELOPMENT CONTROL Planning Reference: Planning Officer: Fergal O’Donnell 14 October 2014 Kyri Eleftheriou-Vaus 020 7341 5686 Kyri.Eleftheriou-Vaus@rbkc.gov.uk EH Acolaid Number PP/14/06109 Environment Officer: Telephone: Email: 14/156238 Application site address: 54 Russell Gardens, LONDON, W14 8EZ Pre-Application Full Application Informal Advice Appeal Notification Planning brief Policy Date received Date returned to planning officer : Consultation deadline from planning website: Date(s) of discussion(s) with Planning officers Environmental issue covered in this response : Air Quality X Noise Other (describe) such as Licensed premises issues Notification has also been forwarded to (EH officer name) Notification has also been forwarded to (EH officer name) Contaminated land Date Date Other For comments on: (subject area) For comments on: (subject area) Summary of application proposal Erection of basement and lower ground floor plus 4 storey building comprising 13 no. Class C3 residential flats and 441 sq.m of flexible use for Class A1 (shops), A3 (restaurants and cafes), A4 (drinking establishments) and/or B1 (business) floorspace, cycle parking and storage (MAJOR APPLICATION) The Council is required to work towards achieving the air quality objectives for nitrogen dioxide and PM10. Developers must therefore develop appropriate low emissions strategies to reduce the cumulative impact of new developments to ensure that no deterioration in air quality occurs in accordance with Core Strategy policy CE5 and the aims of the Council’s Air Quality Action Plan. Comments The site currently accommodates a public house and two residential flats. The proposal is for thirteen residential flats and 417 square metres of flexible space for retail/commercial space). There will be a basement car park with 7 spaces. A revised air quality assessment has been provided to reflect the change in the energy strategy. Air quality assessment methodology Baseline data The report states that there is a lack of background data near the site however data for a range of pollutants, including NO2 and PM10 is available from the North Kensington monitoring station (annual mean NO2 - 37µg/m3). As the figure used corresponds fairly closely to the estimated background level value for NO2 this is accepted. However no background value for PM10 is provided (annual mean PM10 – 22µg/m3) and no information is provided for PM2.5. Only four receptor locations have been used in the assessment and are all situated within the site. No assessment of existing receptors has been included. The adjustment factor for verification is not included in the report (the predicted level was almost half of the monitored value at the verification site). Transport data While the report states that the increase in daily car trips has been taken into account only limited information is provided. Baseline traffic data without the development is not included or which roads the car trips have been assigned to. In addition a transport assessment/statement has not been submitted with the planning application. This is inconsistent with Transportation’s request that a Transport Statement be submitted with the full planning application. This should include an assessment of the car trips and servicing vehicles for all uses. Heat /energy The reference to the original proposal for a biomass boiler has been removed. The energy strategy summary from the design and access statement refers to the use of a ground source heat pump, solar PV panels and a heat recovery unit. The CFSH preassessment also refers to PV and to a communal ground source heat pump. The BREEAM assessment also includes a reference to the planned use of a ground source heat pump. While a ground source heat pump will not allow for pollution credits it does not produce any pollutant emissions locally. While the installation of a ground source heat pump is welcome, the proposal has not been fully investigated i.e. no detailed feasibility assessment has been carried out, only a report which identifies that it is possible to install the pumps. It is therefore essential that a condition should be set to ensure it is installed prior to occupation or that if the proposals are changed then an updated assessment must be carried out. If this is the case detailed information will be required on any combustion plant and boilers. It is also not clear whether it would meet the demand now that the boiler has been removed from the proposals. Air Quality Neutral Assessment The assessment of the transport benchmark contained in the London Plan Supplementary planning guidance is based on C3 (residential) and A2/B1(financial/professional) land use classes however the application is for flexible space which could include A1, A3 and A4 which could generate traffic, however Table 12 shows that no account of this is made. Furthermore there is an inconsistency in the assessment of the benchmark value. Table 13 contains an estimate for PM10 emissions but none for NOx emissions from the A2, B1 transport use. Therefore there is a potential underestimate in the emissions from traffic generation. Despite this the assessment shows the development exceeds the London Plan transport benchmark; therefore measures should be included such as electric charging facilities for the use of the residential parking. Conclusions The assessment is incomplete and does not assess any existing sensitive receptors in the surrounding area. The traffic data used in the assessment must be based on all traffic generated including service vehicles for all uses. Insufficient information has been provided for the assessment of the air quality impact from traffic. The proposal for a ground source heat pump has not been fully worked and it is possible that it may change; therefore a condition will be required. Should changes be made to the heat/energy proposals details of all combustion plant must be approved and many entail a revised AQ assessment. Also estimates of the transport benchmarking exercise show that the emissions are above the Mayor’s benchmark levels. Requested condition(s) Low emission strategy No development shall commence until a low emission strategy has been submitted to and approved in writing by the Director of Planning and Borough Development in consultation with the Director of Environmental Health. The low emission strategy (LES) shall address the emissions from transport and all boilers and combustion plant. The strategy shall detail the emission reduction strategies to be incorporated including proposals for boiler/plant abatement equipment, including the calculation of the appropriate chimney height. Measures for transport emissions shall include electric charging facilities in parking areas, permit free and a travel plan etc. Reason: To Comply with Policy 4A.19 of the London Plan and Policy CE5 of the Core Strategy Combustion and/ Energy Plant No development shall commence until full details of the ground source heat pump is submitted and approved in writing by the Director of Planning and Borough Development in consultation with the Director of Environmental Health. Any boilers to be installed must meet an emission standard of 40mg/kWh dry NOx at 0% O2. Proposals for any Biomass and /or Combined Heat and Power combustion plant will require an assessment of its air quality impacts and must meet as a minimum the Mayor’s Sustainable Design and Construction Band B standards. Reason: To Comply with Policy 4A.19 of the London Plan and Policy CE5 of the Core Strategy S.106 opportunities Officer(s) initials KEV An Air Quality contribution should be sought Times spent (to nearest half hour)