1.1
This table provides a summary of the differences between DEC-Addresses v3.4 September 2016 and DEC-Addresses v3.5 May 2025
6.3.6
6.3.6
In the table, BLPU STATE has been changed from Conditional to Mandatory.
6.3.8.4
6.3.8.4
Section crossed through and now refers to Life Cycle and Best Practice document.
6.3.9
6.3.9
Section crossed through and now refers to Life Cycle and Best Practice document.
6.4.1.3
6.4.1.3
Reference to table at Section 11.5.1 crossed through and now refers to Life Cycle and Best Practice document.
6.4.1.4
6.4.1.4
Section crossed through and now refers to Life Cycle and Best Practice document.
6.4.1.6
6.4.1.6
Reference to table at Section 11.5.1 crossed through and now refers to Life Cycle and Best Practice document.
7.3.4.6
7.3.4.6
Column headed ‘Permitted BLPU STATE codes’ crossed through. Note d added refers to Life Cycle and Best Practice document.
7.4.3.4
7.4.3.4
Reference to table at Section 11.5.1 crossed through and now refers to Life Cycle and Best Practice document.
11.2
11.2
Section superseded by Life Cycle and Best Practice document.
11.3
11.3
Section superseded by Life Cycle and Best Practice document.
11.4.1.2
11.4.1.2
Reference to table at Section 11.5.1 crossed through
11.5
11.5
Section superseded by Life Cycle and Best Practice document.
1.3 This table provides a summary of the differences between DEC-NLPG v3.3 April 2014 and DEC-Addresses v3.4 September 2016.
All
All
Terminology changes to align removal of term NLPG and those used in DTF7.3 and DTF8.1. Introduction of terms GeoPlace, GeoHub and terms defined in the Data Co-operation Agreement.
1.
1.
Section rewritten to align to GeoPlace and Data Co-operation Agreement.
2.
2.
Section restructured to include section 2.4, Definitions used throughout this document and section 2.5, Alphabet rules.
3.
3.
Section restructured to section 3.1, Purpose of this document, section 3.2, Scope of this document and section 3.3, Types of Authority. Entity diagram moved to Appendix I.
4.2.1.6
4.2.1.6
“Subdivision” inserted in fourth bullet.
4.2.1.14
4.2.1.14
New third bullet inserted – “New building or Street names should not begin with “The”. New ninth bullet confirmation of contact details for use Royal names inserted. New eleventh bullet inserted – “The use of names and their combination with numbers that could be easily vandalised or changed into any of the above, for example, ”Canal Turn”. New thirteenth bullet inserted – “The use of names that can be construed to be used for advertising or commercial gain”.
5.1.8
5.1.8
“DEC-Addresses: type 9 Street", inserted.
5.1.9
New section concerning use of USRN range for type 3 Streets, inserted.
5.1.10
New section concerning linking of type 3 Streets, inserted.
5.3.3
5.3.3
LSG responsibility for USRN allocation for Motorways and PRoWs confirmed.
5.3.7.2
5.3.7.2
“Trunk Road” defined in second bullet. New third bullet inserted – “A Highway Maintainable at Public Expense”.
5.3.8.2
5.3.8.2
New sixth bullet inserted concerning use of Street BLPUs.
5.3.8.8
5.3.8.8
Minor amendments to improve clarity of section.
5.3.8.15
5.3.8.15
Minor amendments to improve clarity of section.
5.3.8.16
5.3.8.16
Minor amendments to improve clarity of section.
5.3.10.8
5.3.10.8
Clarification of naming of Motorway services slip roads inserted.
5.4.4.1
5.4.4.3
Maximum tolerance change 100m to 50m.
5.4.5.3
5.4.4.3
Street STATE = 5 – Street for addressing purposes only, inserted in Table 1.
6.1.3
6.1.3
BLPU Classification third party cross reference sources confirmed.
6.3.2
6.3.2
Minor amendments to improve clarity of section.
6.3.13.2
6.3.13.2
Minor amendments to improve clarity of section.
6.3.20.4
6.3.20.4
Minor amendments to improve clarity of section.
6.3.20.5
New section concerning use of Alternative LPIs, inserted.
6.3.20.6
New section concerning use of Street BLPUs before construction commences, inserted.
6.4.2.1
6.4.2.1
Minor amendments to improve clarity of section.
6.4.2.2
6.4.2.2
Minor amendments to improve clarity of section.
6.4.2.3
6.4.2.3
Minor amendments to improve clarity of section.
6.4.3.3
6.4.3.3
Minor amendments to improve clarity of section.
6.4.4.2
6.4.4.2
Minor amendments to improve clarity of section.
7.3.2.2
7.3.2.2
Rules for alphabet usage moved to section 2.5.
7.3.5.9
7.3.5.9
New definition and external reference to large user postcode, inserted.
7.3.6.4
Section deleted.
9.2.2.1
9.2.2.1
Minor amendments to improve clarity of section.
10.1.1.1
Section removed.
10.1.2
10.1.2
Section edited to reflect current Candidate processes.
10.1.3
10.1.3
Section edited to reflect current Candidate processes.
10.2.1
10.2.1
Section edited to reflect current Candidate processes.
10.2.2
10.2.2
Section edited to reflect current Candidate processes.
10.2.3
Section removed.
10.2.4
Section removed.
10.3
Section removed.
10.4
Section removed.
11.5.1.1
11.5.1.1
New sections concerning use of Street BLPUs before and after construction commences, inserted.
11.6.5.3
New section concerning allocation of USRNs at District Council boundaries, inserted.
11.9.2.9
11.9.2.9
Section modified to reflect insertion of new Figure 16.
11.13.1
11.13.1
New section in table relating to Motorway Service Stations.
11.16.1
11.16.1
Section modified to relate to Welsh Language Commissioner and external reference to website, inserted.
11.16.2
11.16.3
Reference to Welsh Language Board publications deleted from section.
12.1.3
Section removed.
12.1.4
Section removed.
12.1.5
Section removed.
12.1.6
Section removed.
12.1.7
Section removed.
12.1.8
12.1.3
Minor amendments to improve clarity of section.
Appendix A
Appendix A
Updated to reflect new terms and definitions
Appendix C
Appendix C
Sure Start (Nursery / Creche) added to explanatory notes of CC04 - Public / Village Hall / Other Community Facility.
Appendix C
Appendix C
(above and below ground) added to explanatory notes of CI04 - Tank.
Appendix C
Appendix C
Fun Castle (inflatable) and Gaming Machines added to explanatory notes of CL01.
Appendix C
Appendix C
Donkey Stand added to explanatory notes of CL06.
Appendix C
Appendix C
Bathing Tent added to explanatory notes of CL09.
Appendix C
Appendix C
Delivery Point (Drop Box) and Electronic Delivery Locker added to explanatory notes of CR02.
Appendix C
Appendix C
Weighing Machine added to explanatory notes of CR08.
Appendix C
Appendix C
Solar and Photovoltaic Installation added to explanatory notes of CU03.
Appendix C
Appendix C
Sponsored roundabouts added to explanatory notes of CZ01.
Appendix C
Appendix C
Country Park and Village Green added to explanatory notes of LP02.
Appendix C
Appendix C
Gun Emplacement, Pill Box, Air Raid Shelter / Bunker added to explanatory notes of ZM05.
Appendix D
Appendix D
Third party sources for VOA, Planning Use Class, NLUD, Building Regulations and FSEC identified.
Appendix D
Appendix D
Various updates to third party source codes identified.
Appendix G
Appendix G
Processing an Official Address and example of LLPG Address Change Intelligence flows updated.
Appendix I
Appendix I
Improving RPC values diagram updated and inserted.
Appendix H
Appendix H
Source of diagram updated.
Appendix I
Appendix I
Appendix renamed to Entity Relationship Diagram and diagram inserted. Table 4 - On-going maintenance checks, removed. Table 5 - checks on existing data, removed. Improving RPC Values diagram updated and moved to Appendix G.
Appendix K
Appendix K
Appendix reviewed and updated including Candidates and resynchronisation sections.
Appendix L
Appendix L
Appendix reviewed and updated including reference to Priority Objects.
Appendix M
Appendix M
Appendix reviewed and updated including new section 10 inserted.
Appendix N
Appendix N
Appendix reviewed and updated.
Appendix O
Appendix O
Appendix reviewed and updated.
1.5
This table provides a summary of the differences between DEC-NLPG v3.2 December 2011 and DEC-NLPG v3.3 April 2014.
4.2.1.17
Section 4.2.1.17
Clarification that SNN Officer should liaise with Authority Street Custodians through Authority Address Custodians to reach agreement on town and locality for new records.
New Sections 5.1.5 and 5.1.6
Clarification of rules around synchronising LLPG and LSG, confirming that a Street should be added to the LLPG if the Street is a Record in the LSG and a PAON in the LLPG.
5.2.6
5.2.6
Clarification that attributes associated with records which appear in the NSG and the NLPG must be identical. Exception allowed for entry date.
5.2.8
Paragraph removed
Rule stating that a target date must be set for ensuring consistency between LSG and LLPG removed because this is not a DEC issue.
Table at Section 5.3.3
Responsibility for Street start date changed to LLPG, entry date changed to LLPG or LSG, close date changed to LLPG or LSG.
Section 5.3.8.8
Further clarification on how to record terraces and Street overlaps. Includes introduction of Street state code 5 –Street for Addressing purposes only and new Street adoption code 5 (type 61 Record) – Street outside the scope of EToN. Requires extra code list value.
Section 5.3.8.12
New rule stating that if two Streets overlap by 10m or less then the start and end coordinates should be coincident.
Section 5.3.10.3
Clarification of how to add a bridge as both a Street and a structure if it is a Street in its own right.
New Section 5.4.4.3
Target tolerance stated of 0.1m to be consistent with DEC-NSG.
6.3.11.2 and 6.3.11.3
Revised Section 6.3 11
Clarifying the use of RPC 1 and RPC 2 following separate consultation.
Sections 7.3.5.6 to 7.3.5.11
Further clarification of use of postcodes and Postal Address flags. Flags redefined to be associated with LPIs not Objects to allow for rules around permitted combinations to be relaxed.
Section 8.3.2.2
Addition of two new source codes: PA (linked to Postcode Address File) and OS (Ordnance Survey Object received from GeoPlace).
Appendix C
Appendix C
Show Homes included in explanatory notes of CR02.
Appendix C
Appendix C
Docking Stations (bicycle and electric vehicle) added to explanatory notes of CR02.
Appendix G
Appendix G
Addition of new diagram Processing an Official Address
Appendix L
Appendix L
Additional guidance on linking to Postcode Address File® Records