NEW HOUSE

Code for Sustainable Homes LEVEL 3

This is the minimum requirement for a new house in Monmouthshire/Gwent.
For this 57 points are required out of a possible 100

Level 1   36 points
Level 2  48 points
Level 3  57 points
Level 4  68 points
Level 5  84 points
Level 6  90 points

It has been discussed that    Code 3 adds £5-7000
                                                 Code 4 adds £7-10,000
and                                          Code 6 adds £40-50,000

As well as designing a new home with a possible structural engineer involved, since 2006 it has all changed. Now for 1012 homes other experts are involved;

Dwelling Emission Rate                                              SAP Assessor
Design and Access Statement                                   Architect
Beam calculations                                                        Structural Engineer
Code for Sustainable Home assessment                 Code Assessor
Security                                                                         Police Liaison Officer
Ecological Enhancement                                            Ecologist
Air Leakage Test                                                         Air Leakage assessor
with possible
Flood assessment                                                       Drainage and Flood assessor
Daylighting                                                                    Daylighting Expert
Archeologist watching brief                                        Archeologist


All experts and most need paying.

The Code for Sustainable Home assessment is carried out at the design stage
Energy Saving for home builders is 25% reduction against the 2006 Building Regulations
so for
Roof         U value is    0.13
Walls                             0.25
Floors                           0.20
Windows                      1.20
Doors                           1.00
Y value                          0.04

Air Tightness                                  3.00
Mechanical Ventilation                  MHVR 85% efficiency
Low Energy Lighting                      75%
DER Dwelling Emission Rate      17.59

Note that Code level 3 is the minimum at present BUT soon Local Autrhorities will be adopting Level 4

All this is adding the build costs by approx 15% so engage a knowledgeable Architect who can help you apply the code to get the maximum benefit at the minimum cost