NAZEING GLASSWORKS, NAZEING, BROXBOURNE FLOOD RISK SEQUENTIAL ASSESSMENT Final Report v1.4 November 2019 Weetwood Services Ltd 70 Cowcross Street London EC1M 6EJ t: 0203 7575 444 e: [email protected] w: www.weetwood.net Nazeing Glassworks, Nazeing, Broxbourne Flood Risk Sequential Assessment Report Title: Nazeing Glassworks, Nazeing, Broxbourne Flood Risk Sequeential Assessment Final Report v1.4 Client: Nazeing Marina Village Ltd Date of Issue: 19 November 2019 Prepared by: Owen Astbury BSc (Hons) Graduate Project Manager Checked by: James Aldridge BBEng (Hons) MSc MCIWEM Technical Directoor Approved by: Kevin Tilford BSc MSc (Eng) PhD MBA C.WEM MCIWEM Managing Director This documment has been prepared solely as a Flood Risk Sequential Assessment for Nazeing Marina Village Ltd. This report is confidential to Nazeing Marina Village Ltd and Weetwood Services Ltd accepts no responsibility or liability for any use that is made of this document other than by Nazeing Marina Village Ltd for the purposes for which it was originally commissioned and prepared. ©Weetwood i 4186/FFRSA/Final/v1.4/2019-11-19 www.weetwood.net Nazeing Glassworks, Nazeing, Broxbourne Flood Risk Sequential Assessment Contents Page Signature Sheet i Contents ii List of Figures & Appendices iii 1 INTRODUCTION ................................................................................ 1 1.1 Purpose of Report .................................................................................................. 1 1.2 Structure of the Report ........................................................................................... 1 2 PLANNING POLICY AND GUIDANCE ..................................................... 2 2.1 National Planning Policy .......................................................................................... 2 2.2 Environment Agency Guidance ................................................................................ 2 2.3 Relevant Documents .............................................................................................. 3 3 SITE DETAILS ................................................................................... 4 3.1 Site Location and proposed development .................................................................. 4 3.2 Review of flood Risk ............................................................................................... 4 4 FLOOD RISK SEQUENTIAL TEST - METHODOLOGY ................................. 6 4.1 Overview of Process ............................................................................................... 6 4.2 Geographical Area ................................................................................................. 6 4.3 Source of Alternative Sites ...................................................................................... 6 4.4 Testing Alternative Sites ......................................................................................... 6 5 APPLICATION OF THE SEQUENTIAL TESTS ............................................. 8 5.1 Identification of Alternative Sites ............................................................................. 8 5.2 Assessment of Alternative Sites ............................................................................... 8 6 SUMMARY ........................................................................................ 9 ©Weetwood ii 4186/FFRSA/Final/v1.4/2019-11-19 www.weetwood.net Nazeing Glassworks, Nazeing, Broxbourne Flood Risk Sequential Assessment List of Figures Figure 1: Site Location ............................................................................................... 4 Figure 2: Flood Map for Planning .................................................................................. 5 List of Appendices Appendix A: Discounted Sites – Deliverability Appendix B: Discounted Sites – Suitabbility Appendix C: Discounted Sites – Flood RRisk ©Weetwood iii 4186/FFRSA/Final/v1.4/2019-11-19 www.weetwood.net Nazeing Glassworks, Nazeing, Broxbourne Flood Risk Sequential Assessment 1 INTRODUCTION 1.1 PURPOSE OF REPORT Weetwood Services Ltd ('Weetwoood') has been instructed by Nazeing Marina Village Ltd to prepare a Flood Risk Sequential Assessment report to accompany a planning application for the proposed redevelopment of the Nazeing Glasssworks site, Nazeing, Broxbourne. It is understood that the site has been designated as an Employment Site (NAZE.E3) within the Epping Forest District Council (EFDC) Local Plan 2011-2033 (Submission Version 2017). As such, the site is deemed to have satisfied the requirements of the Flood Risk Sequential Test with respect to employment uses. This report presents the methodology and outcome of the applicaation of the Sequential Test for the residential aspect of the development. The Flood Rissk Sequential Test has been undertaken in accordance with the requirements of the National Planning Policy Framework (NPPF) using the appproach set out within the Environment Agency (EA) Demonstrating the Flood Risk Sequential Test for Planning Applications guidance note1. Reference has also been made to the EFDC Strategic Land Availability Assessment (SLAA; 2016). 1.2 STRUCTURE OF THE REPORT The report is structured as follows: Section 1 Introduction and report structure Section 2 Presents national and local flood risk and planning policy Section 3 Presents background information relating to the development site, development proposals and outlines the flood zone at the site Section 4 Presents the sequential assessment methodology Section 5 Presents application of the assessment to the alternative sites Section 6 Presents a summary of key findings 1 Demonstrating the flood risk Sequential Test for PPlanning Applications, version 3.1, Envirronment Agency, April 2012 ©Weetwood 1 4186/FFRSA/Final/v1.4/2019-11-19 www.weetwood.net Nazeing Glassworks, Nazeing, Broxbourne Flood Risk Sequential Assessment 2 PLANNING POLICY AND GUIDANCE 2.1 NATIONAL PLANNING POLICY The aim of the NPPF is to ensure that flood risk is taken into account at all stages in the planning process and is appropriately addressed. Paragraph 155 of the NPPF states that 'innapropritate development in areas at risk of flooding should be avoided by directing development away from areas at highest risk (whether existing or future). Where development is necessary in such areas, the development should be made safe for its lifetime without increasing flood risk elsewhere'. Paragraph 158 of the NPPF states that ‘the aim of the sequentiiaal test is to steer new development to areas with the lowest risk of flooding. Development should not be peermitted if there are reasonable available sites appropriate for the proposed development in areas with a lower risk of flooding’. Paragraph 19 of the National Planning Practice Guidance (NPPG) states that ‘the Sequential Test ensures that a sequential approach is folllowed to steer new development to areas with the lowest probability of flooding. The flood zones as refined in the Strategic Flood Risk Assesssment for the area provide the basis for applying the Test. The aim is to steer new development to Flood Zone 1 (areas wiith a low probability of river or sea flooding). Where there are no reasonably available sites in Flood Zone 1, local planning authorities in their ddecision making should take into account the flood risk vulnerability of land uses and connsider reasonably available sites in Flood Zone 2 (areas with a medium probability of riiver or sea flooding), applying the Exception Test if required. Only where there are no reasonably available sites in Flood Zoones 1 or 2 should the suitability of sites in Flood Zone 3 (areas with a high probability of river or sea flooding) be considered, taking into account the flood risk vulnerability of lland uses and applying the Exception Test if required.’ 2.2 ENVIRONMENT AGENCY GUIDANCE The EA guidance note (see Section 2.3) outlines the methodology for applying the Sequential Test. The first stage consists of defining the evidence base to be considered during application of the test. This involves defining a geographical search area in order to assess which sites should be included, and then identifying the source of alternative sittes. Once identified, the alternative sites should be compared to the application site, both on flood risk grounds and in relation to a number of other potentiall constraints. Following this assessment, if there are no ‘reasonably available’ alternative sites within an area at loower risk of flooding and capable of accommodating the development, the Sequential Test is considered to have been addressed. ©Weetwood 2 4186/FFRSA/Final/v1.4/2019-11-19 www.weetwood.net Nazeing Glassworks, Nazeing, Broxbourne Flood Risk Sequential Assessment 2.3 RELEVANT DOCUMENTS The assessment has been informed by the following documents: EFDC - Local Plan 2011-2033, Submission Version 2017 EFDC - Strategic Land Availability Assessment (SLAA), July 2016 EA - Demonstrating the Flood Risk Sequential Test forr Planning Applications guidance note, version 3.11, April 2012 ©Weetwood 3 4186/FFRSA/Final/v1.4/2019-11-19 www.weetwood.net Nazeing Glassworks, Nazeing, Broxbourne Flood Risk Sequential Assessment 3 SITE DETAILS 3.1 SITE LOCATION AND PROPOSED DEVELOPMENT The approximately 2.8 hectare (ha) site (hereafter referred to as the ‘application site’) is located to the east of New Nazeing Road and to the west off Nazeing Meads South Lagoon, at Ordnance Survey National Grid Reference TL 380 066, as shown in Figure 1. The proposals are