News and events


August  2010 

It has recently been confirmed by CLG that the release of SAP 2009 EPCs is to be deferred until 27th March  2011, to coincide with the release of RdSAP 2009 EPCs.

The implementation of SAP 2009 calculations will still commence on 1st October 2010, as previously announced. In order to comply with the revised legislation, it will be necessary for our assessors to utilise both SAP 2005 and SAP 2009 versions of the Design software in order to cover four possible scenarios. The table below illustrates when each software version should be used:

Project Commencement (Calculation)              Construction Completed (EPC)

Pre 1st Oct 2010 – SAP 2005             ->                Pre 27th March 2011 – SAP 2005

Pre 1st Oct 2010 – SAP 2005             ->                Post 27th March 2011 – SAP 2009

Post 1st Oct 2010 – SAP 2009            ->                Pre 27th March 2011 – SAP 2005

Post 1st Oct 2010 – SAP 2009            ->                Post 27th March 2011 – SAP 2009

It is anticipated that only a small number of newly constructed/converted dwellings will be affected by this deferment period given that, traditionally, very few new properties are constructed and completed between 1st October 2010 and 27th March 2011.

New dwellings conforming to Part L 2010 will not be completed until some time after 1st October 2010 and Building Regulations CO2 emission calculations will be produced using the SAP 2009 software. In the event that construction is completed before 27th March, the SAP 2005 software would again be used to produce the EPC.

10 key changes to building regulation L1A 2010 

Part L1A of the Building Regulations comes into force in October 2010. A summary of  the ten key changes is listed below. 

1.     25% less CO2 emission than 2006

 Part L1A 2010 aims to reduce CO2 emissions by 25% over Part L1A 2006. This is a 40% improvement over a dwelling built to the 2002 regulations. This corresponds roughly with the trigger point for Code for Sustainable Homes Level 3, in line with the government’s strategy for getting newbuild dwellings to zero carbon by 2016 

2.     Flat TER wins the Day

The Target Emission Rate (TER) is calculated in much the same way as it was in Part L1A 2006. The main differences are that (a) an improvement factor of 0.4 is used rather than 0.2 to give the 40% improvement referred to above (b) the SAP 2009 methodology is used to estimate the carbon emissions from heating, hot water, lighting, pumps and fans.The fuel factors have not changed so that electric heat pumps and biomass will continue to be encouraged by the TER; although this is countered to an extent by lower limiting U values (see key point 8). The fuel factor for heat pumps is also to be reviewed after the renewable heat incentive is introduced. The ‘Aggregate’ TER was rejected on the grounds that the benefits did not justify a change in methodology at this stage, despite the Aggregate option being selected for non domestic dwellings. The issue will be re-examined for Part L1A 2013.

3.     Cavity walls sealing /insulating them does not count towards the 25% 

A key feature of SAP 2009 is that party walls with unfilled and unsealed cavities are assumed to have a U value of 0.5 W/m2K. The notional dwelling used in calculating the TER assumes a U value for cavity party walls of 0.0 W/m2K. This compares to 0.4 W/m2K in last year’s Part L1A 2010 consultation. This means that insulating/sealing cavity party walls will not count towards the 25% improvement target. 

4.     Thermal bridges 0.08 for ACD no longer an option

In Part L1A 2006, it is acceptable to assume a y value of 0.08 W/m2K if Accredited Construction Details have been used. This will not be possible with Part L1A 2010. Instead, the length of each junction will need to be measured, multiplied by the appropriate psi values and added up to produce an ‘effective’ y value.The psi values can either be values already supplied in the SAP 2009 document or supplied by the relevant approved government ACD scheme. The psi values can also be calculated for specific junctions. A confidence factor will be applied to the psi value calculation for an individual junction if either (a) the calculated psi values are not from a government approved Accredited Details scheme or (b) if no on site checks can be demonstrated to have been made. The confidence factor applied to the psi value calculation is 25% or 0.02, whichever is the larger.

5.     Air permeability  more pressure testing and confidence factor for untested dwellings

The volume of pressure testing required will roughly double. A pressure test should be carried out on three units of each dwelling type or 50% of the instances of the dwelling type, whichever is the smaller.In addition, a confidence factor will apply to dwellings not pressure tested. Where a dwelling has been pressure tested, the measured value is used in the calculation of the DER. Where the dwelling has not been pressure tested, the value used in the DER calculation is the average of the measured values for dwellings of the same type but with the addition of a confidence factor of 2.0 m3/(h.m2) at 50 pa. This means in effect that the design air permeability must be at most 8.0 in order to meet the maximum allowable value of 10.0 at completion of the dwelling. A value of 15.0 can still be used in small developments 

6.     Low Energy Lighting 100% count towards meeting the TER 

A minimum of 75% of light fittings must be low energy. If further low energy light fittings are also low energy, the full 100% will contribute towards meeting the TER target. 

7.     Electric secondary heating no longer assumed 

In Part L 2006, a penalty was applied in dwellings not fitted with a secondary heating appliance. In such cases it was assumed that 10% of the heat in the property came from direct acting electric heaters, thereby significantly increasing the DER. In Part L 2010, there is no such penalty unless the dwelling has a chimney or flue and no appliance is installed; in such cases the calculation is the same as in 2006. 

8.     New limiting U- Values including party walls.  

 Element 2006 2010
 Roof 0.25 0.20
 External Wall 0.35 0.30
 Party Wall n/a 0.20
 Floor 0.25 0.25
 Windows 2.20 2.0
 Air permeability 10 10

 9.     Design Submission are now part of the regulations alongside the As built  Submissions

In Part L1A 2006, it was recommended that a submission be provided to Building Control prior to the building work being completed on site; but this not an absolute requirement.However, in Part L1A 2010 the person carrying out the work must provide building control the TER, DER and a list of specifications before work starts on site. Then, no later than 5 days after the work has been completed, they must notify Building Control of the TER and DER actually achieved, and whether the building has been constructed as per the design specification; if not, a list of changes to the design specification must be supplied. This is to better enable Building Control to confirm that what has been built aligns with the claimed performance. New outputs from SAP software will be available to help Building Control with this process.

10.   Addressing the performance Gap

There is growing evidence that completed dwellings do not in practice achieve the intended energy performance. This is referred to by government as the ‘performance gap’. If we are to achieve true zero carbon by 2016 it is vital that this gap be closed. Part L1A 2010 contains various things that aim to contribute to this.

Firstly, the document is clearer than previous versions in distinguishing between ‘Regulation’ and ‘Guidance’ and is less ambiguous in many places. This should help developers better understand what is required of them and give Building Control clearer guidance on how to check for compliance.

Secondly, the requirement to produce a Design submission as well as an As Built Submission, including a comparison of specifications, will hopefully bring more standardisation and rigour to the compliance checks.

Thirdly, the notion of ‘confidence factors’ should start to reward those developers who adopt good quality control procedures both in design and on site. We can expect to see more of these confidence factors in 2013 and beyond.


Results of the Customer Survey  LCC Gecko conducted comfirm that we are doing almost everything right. Still a small improvement to achieve 100% satifaction.96.7% would recommend LCC Gecko to others and were satisfied with the work and quality carried out

Another Consultant complete course and Qualify's to perfom Display Energy Certificates.


Great end to 2009 LCC Gecko  secure work with 2 new commercial agents.  Agreement in place to train surveyor from local House developer 6-12 months secondment

Current legislation states all public buildings over 1000m² are required to have DEC and advisory report in place The revised Energy Performance of Buildings Directive (EPBD 2), due to come into effect in December 2010, will necessitate the production of  DEC’S including Advisory reports for all public buildings over 250m².  

The penalty is £500 for failing to display a DEC at all times in a prominent place clearly visible to the public and £1,000 for failing to have possession of a valid advisory report.

Air conditioning surveys are a requirement and here at LCC Gecko we can help.Another consultant completes and becomes qaulified Commercial level 3 AssessorLCC had a great summer with growth beyond forecasted target

LCC Gecko renew Air test accreditation with BINDT:SCC Gecko are 1 of 16 companies accredited to conduct Air Tests in the whole of:Bedfordshire, Buckinghamshire, Berkshire, Northamptonshire, Leicestershire, Oxfordshire, Slough  

As Part of our Continual commitment to provide the Part L service:LCC Gecko renew accreditation with Elmhurst for On Construction Energy Assessments (Sap Calculations and EPC)  ONCEA LCC Gecko also provide  NDEA Level 3 NDEA Level 4DIP DEC

With our ever increasing commitment to provide high levels of customer service, another consultant has reached Level 4 Status.

Our Display Energy Certificate service is now available throughout the UK.

Project management Whats is evident, is public authorities are not just looking for companies to complete the DEC requirments for them, an additional requirement is to project manage this , allow them to focus on their core activities. With this in mind,LCC Gecko have put in place a Project Management team to focus on this specific requirment.

Extended UK Coverage, LCC Gecko have manage to secure the services of additional qaulified energy consultants, which will alow us to provide a more focussed service in Newcastle, London, Birmingham.

LCC Gecko 1st  qtr review exceeded all expectations in terms of both new enquiry’s and the work completed. The level of business was 200 % increase on the previous qtr and the 2nd qtr projected business is looking very promising.

Double the traffic to new Web Site.      LCC Gecko  saw a dramatic increase in the traffic to the new look web site. The feedback from customers is that they found it to be informative, easy to navigate and they especially found the FAQ section most informative.

Level 3 & 4 NDEA’s. In March another consultant has passed Level 3 and can now undertake commercial energy assessments, one has also Level 4 , all this helps top service the ever increasing demands of our customers.

Portfolio.Asbestos Surveys were added to the portfolio and the work is undertaken by RICS qualified surveyors.

LCC Gecko recognised that there is a need for more informative sites to assist developers with unanswered questions in relation to Part L requirements for building regulations and the impact of EPC's in the build process. Therefore a new FAQ's section has been introduced in to the new site, with a feature currently being developed to allow questions to be posted that are not covered. LCC Gecko  will  endeavour to get the questions answered and post in the FAQ section.


What Recession? LCCG have one of the busiest months of the year, completing all projects on time and to budget. 

LCCG complete 211 Energy Performance Certificate For Muse Developments at one of their prestigious sites in Reading.  

LCCG complete Energy Performance Certificate on behalf of Milton Keynes Council.  

EPCs Energy Performance Certificates required on the construction, sale or rent of all commercial condition buildings > 50 m2 Display Energy Certificates required for all public buildings >1,000 m2    

Due to continued interest in LCCG services in particular EPC and DEC, LCCG appoint a dedicated Project Coordinator.

Energy Performance Certificates for The Mill, Stalybridge, an Urban Splash development completed on time.

LCCG become a full member of the UK Green Building Council    

LCCG commitment to excellence is reflected in the appointment of a dedicated Air Testing Manager.

Working with AtelierTen, LCCG deliver Urban Splash Predicted Energy Certificates.    

LCCG commit to MK with the membership to the Milton Keynes Chamber of Commerce.

A working relationship with Paul Newman New Homes was successfully reviewed and LCCG (LCC Gecko) look to future projects.

Secure first Commercial Energy Assessment level 3.

Consultants complete the Commercial Energy Assessment course Level 3-4.

L-Atelier and LCCG (LCC Gecko) agree respective working relationship.

Emerson Buck private property developer keen to ensure their portfolio meets the latest standards employ LCCG (LCC Gecko) to review their stock.

Complete the Bermondsey Project on behalf of Galliford Try Construction Ltd. Project completed on time and within budget.  A dedicated team leader employed by LCCG (LCC Gecko ) to manage the Air Testing Services. Engaged by Galliford Try Construction Ltd for air testing services in Bermondsey.

Consultant successfully completed the Elmhurst on Construction Energy Assessor course. LCCG (LCC Gecko)  fully accredited to issue EPC’s.    

Terms agreed with AtelierTen who are one of the leading (environmental | building services engineers), committed to low energy principles since setting up in 1990.

Bindt (British Institution for non Destructive Testing) accreditation body approves LCCG to issue air tightness testing certificates for New Build Dwellings. LCCG (LCC Gecko) achieve Air Tightness Testing accreditation through Stroma.