Building Regulations

NHBC Standards – 4 2 Building near trees

Chapter 4.2 gives guidance on meeting the Technical Requirements and recommendations for building near trees, particularly in shrinkable soils.
NHBC Standards do not cover aspects of health and safety relating to building operations and to the handling and use of certain building materials. Such matters are covered by statutory requirements.
This version of the Standards has been updated to include the Amendments to the Standards April 2004. Previous versions of the standards can be accessed in the Archive section (below).

Section 4.2 Contents

INTRODUCTION
DESIGN

•        Design standard

•        Statutory requirements

•        Trees and hedgerows adjacent to structures

•        Foundations (all soil types)

•        Foundations (shrinkable soils)

•        Designing to accommodate heave

•        Provision of information

MATERIALS

•        Materials standards

•        Proprietary heave materials

SITEWORK

•        Sitework standards

•        Foundation depths

•        Excavation for foundations

•        Heave precautions

•        Drainage

APPENDIX 4.2-A

•        Statutory references

APPENDIX 4.2-B

•        Water demand and mature height of trees

APPENDIX 4.2-C

•        Foundation depth charts

APPENDIX 4.2-D

•        Foundation depth tables

APPENDIX 4.2-E

•        Climate zones

APPENDIX 4.2-F

•        Damage to trees by construction work

APPENDIX 4.2-G

•        Information sources and acknowledgements

APPENDIX 4.2-H

•        Worked example

LIST OF CHAPTERS

INDEX

Archive

Chapter 4.2 (2003)

Amendments to the Standards (2003)

Source: NHBC Standards

            April 2004

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