[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"atspace-main-nav":3,"blog-post-what-part-l-photographic-evidence-do-builders-need-to-collect-on-site":34,"atspace-footer-navs":338,"blog-active-tags":460,"blog-active-categories":598},[4,14,18,22,26,30],{"id":5,"to":6,"icon":7,"items":8,"label":9,"target":10,"toggle":11,"command":7,"to_page":7,"visible":11,"disabled":8,"is_button":8,"separator":8,"labelAdmin":12,"align_right":8,"logged_in_only":8,"display_variant":13,"not_logged_in_only":8},"e4efaec3-54a9-4eb0-8582-4fd8770e1545","\u002Fservices",null,false,"Services","_self",true,"Internal page link","link",{"id":15,"to":16,"icon":7,"items":8,"label":17,"target":10,"toggle":11,"command":7,"to_page":7,"visible":11,"disabled":8,"is_button":8,"separator":8,"align_right":8,"logged_in_only":8,"display_variant":13,"not_logged_in_only":8},"b361671f-6584-4af5-8fa0-5a26da73684c","\u002Fpartner-with-us","Partner with us",{"id":19,"to":20,"icon":7,"items":8,"label":21,"target":10,"toggle":11,"command":7,"to_page":7,"visible":11,"disabled":8,"is_button":8,"separator":8,"align_right":8,"logged_in_only":8,"display_variant":13,"not_logged_in_only":8},"b36e0f40-bf19-4620-bab9-25d45aefb3be","\u002Fabout","About",{"id":23,"to":24,"icon":7,"items":8,"label":25,"target":10,"toggle":11,"command":7,"to_page":7,"visible":11,"disabled":8,"is_button":8,"separator":8,"align_right":8,"logged_in_only":8,"display_variant":13,"not_logged_in_only":8},"0902954c-7220-4174-a771-dd28ed1e48f1","\u002Fcontact","Contact",{"id":27,"to":28,"icon":7,"items":8,"label":29,"target":10,"toggle":11,"command":7,"to_page":7,"visible":11,"disabled":8,"is_button":8,"separator":8,"align_right":8,"logged_in_only":8,"display_variant":13,"not_logged_in_only":8},"cd688c42-d7c7-4013-a38c-64be3f793377","\u002Fknowledge-hub","Knowledge hub",{"id":31,"to":32,"icon":7,"items":8,"label":33,"target":10,"toggle":11,"command":7,"to_page":7,"visible":11,"disabled":8,"is_button":8,"separator":8,"align_right":8,"logged_in_only":8,"display_variant":13,"not_logged_in_only":8},"d2c943ff-8768-4ef9-88a5-1ae6b912733d","\u002Fcareers","Careers",{"data":35},{"id":36,"user_id":37,"slug":38,"full_url":39,"title":40,"excerpt":7,"featured_image":41,"featured_image_alt":7,"data_model":42,"publish_date":75,"is_template":8,"created_at":76,"updated_at":77,"settings":78,"seometa":79,"categories":91,"tags":99,"theme_styles":106,"page_type":7,"linked_page":7},141,7,"what-part-l-photographic-evidence-do-builders-need-to-collect-on-site","\u002Fblog\u002Fwhat-part-l-photographic-evidence-do-builders-need-to-collect-on-site","What Part L Photographic Evidence Do Builders Need to Collect on Site?","https:\u002F\u002Fatspace-ltd.s3.eu-west-2.amazonaws.com\u002Fuploads\u002Fblog\u002Fchatgptimagemay13202603-17-54p.jpeg",[43],{"name":44,"id":45,"componentName":46,"bgImage":7,"bgColor":7,"margin":7,"parentAlign":47,"padding":7,"classes":7,"colSpan":7,"cols":48,"colsMD":49,"originalModel":50,"borderWidth":7,"borderPosition":7,"borderColor":7,"borderRadius":7,"sticky":8,"stickyTop":74,"stickyDisableSmall":8,"bgColorOpacity":58,"bgImageVisibility":59,"bgImageSize":60,"bgImagePosition":61,"bgImageRepeat":62,"bgImageAttachment":63,"bgImageOpacity":58,"bgImageVisibilitySM":7,"bgImageVisibilityMD":7,"bgImageVisibilityLG":7,"bgImageSizeSM":7,"bgImageSizeMD":7,"bgImageSizeLG":7,"bgImagePositionSM":7,"bgImagePositionMD":7,"bgImagePositionLG":7,"equalHeightRows":8,"fillParentHeight":8},"Full Column Block","ff0d2e86-bf31-45e8-8da0-3a64be195e84","ColContainer","w-full","grid-cols-1","md:grid-cols-12",[51],[52,64],{"classes":53,"customColSpan":8,"id":54,"colSpan":53,"colSpanSM":55,"colSpanMD":56,"colSpanLG":57,"borderWidth":7,"borderPosition":7,"borderColor":7,"borderRadius":7,"bgColorOpacity":58,"bgImage":7,"bgImageVisibility":59,"bgImageSize":60,"bgImagePosition":61,"bgImageRepeat":62,"bgImageAttachment":63,"bgImageOpacity":58,"bgImageVisibilitySM":7,"bgImageVisibilityMD":7,"bgImageVisibilityLG":7,"bgImageSizeSM":7,"bgImageSizeMD":7,"bgImageSizeLG":7,"bgImagePositionSM":7,"bgImagePositionMD":7,"bgImagePositionLG":7},"col-span-1","62df63f7-1fa8-434f-a9b8-a99e259b74d8","sm:col-span-12","md:col-span-12","lg:col-span-12",100,"visible","cover","center center","no-repeat","scroll",{"name":65,"componentName":66,"group":67,"margin":7,"padding":7,"classes":7,"bgImage":7,"id":68,"originalModel":69},"WYSIWYG Editor","Wysiwyg","content","1029c167-c4f8-4873-a395-42558909641e",{"proseEnabled":11,"content":70,"lineHeightClass":71,"trackingClass":72,"spacingClass":73,"margin":7,"marginSM":7,"marginMD":7,"marginLG":7,"marginTop":7,"marginTopSM":7,"marginTopMD":7,"marginTopLG":7,"marginRight":7,"marginRightSM":7,"marginRightMD":7,"marginRightLG":7,"marginBottom":7,"marginBottomSM":7,"marginBottomMD":7,"marginBottomLG":7,"marginLeft":7,"marginLeftSM":7,"marginLeftMD":7,"marginLeftLG":7,"padding":7,"paddingSM":7,"paddingMD":7,"paddingLG":7},"\u003Ch3 class=\"MsoNormal\">\u003Cstrong>What Part L Photographic Evidence Do Builders Need to Collect on Site?\u003C\u002Fstrong>\u003C\u002Fh3>\n\u003Cp class=\"MsoNormal\">The insulation is in. The walls are ready to close. The plasterboard team is booked. Then someone asks the question that stops the room.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">“Have we got the Part L photos?”\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">That is when a simple task can become a real site problem.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">For new build homes, Part L photographic evidence is not something to leave until handover. Many of the details that matter are hidden by the time the project reaches completion. Floor insulation, cavity closers, service penetrations, air sealing, roof insulation and ventilation duct routes can all disappear behind finishes.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Once they are covered, the evidence is much harder to collect.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">This guide explains what Part L photographic evidence builders should collect on site, why it matters, and how a missed photo can create avoidable delays near completion.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Approved Document L Volume 1 for dwellings says photographic evidence should be provided for each individual dwelling, taken at appropriate construction stages, and captured before close up works. It also links photographic evidence with the Building Regulations England Part L report, often known as the BREL report. \u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>What is Part L photographic evidence?\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Part L photographic evidence is a set of site photos that help show how key energy related details have been built.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">For new dwellings, these photos support the wider Part L evidence process. They help the project team, SAP assessor and building control body understand what has been installed and whether the as built information matches the design intent.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">SAP is the Standard Assessment Procedure used to calculate the energy performance of homes. GOV.UK describes SAP as the method used to calculate a home’s energy performance, and the current GOV.UK SAP page was updated in May 2025. \u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">The photos do not replace SAP calculations. They do not replace air testing. They do not guarantee building control acceptance.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">They are part of the evidence trail.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">A good Part L photo helps answer a simple question:\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Can the project team clearly show what was installed before it was covered?\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Why Part L photographic evidence matters\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">On site, most Part L problems do not start with one dramatic failure. They usually start with small gaps.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">A window specification changes, but the SAP assessor is not told.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">A cavity closer detail is installed correctly, but nobody photographs it.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">A duct route is boxed in before the ventilation evidence is captured.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">A plant label is hidden behind a cupboard door.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">A subcontractor takes photos, but they stay on a phone.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Each issue can feel small at the time. Together, they can create a final stage scramble.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Approved Document L states that the as built BREL report should be signed by the SAP assessor to confirm that the as built calculations are accurate and that documentary evidence and photographs have been reviewed. It also says the developer should sign the as built BREL report to confirm the dwelling has been completed according to the specifications in the report. \u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">That makes the photo record important. If the evidence is missing, unclear or mixed across plots, the final review can take longer than it needs to.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>When should builders take Part L photos?\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">The short answer is before the detail is covered.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">The better answer is at the point where the detail is complete, visible and easy to identify.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Do not wait for practical completion. By then, many of the details that matter will be hidden behind plasterboard, flooring, boxing, cupboards, loft boarding or external finishes.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">A good site rule is this:\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">If the detail affects heat loss, air leakage, ventilation, heating, hot water or SAP inputs, photograph it before it disappears.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">The timing matters as much as the photo itself. A photo taken too early may show incomplete work. A photo taken too late may not show the detail at all.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>What Part L photographic evidence should builders collect?\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">The exact evidence should always match the project, specification and dwelling type. However, most new build housing projects should be capturing the following areas.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Foundations, floors and floor insulation\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Photograph the floor build up before it is covered.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Useful photos include:\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">• Ground floor insulation before screed or boarding\u003Cbr>• Floor perimeter insulation\u003Cbr>• Insulation around service penetrations\u003Cbr>• Junctions between floor and external wall\u003Cbr>• Continuity of insulation at thresholds\u003Cbr>• Any proprietary insulated foundation or floor edge details\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">These photos are important because floor junctions can have a real impact on heat loss and thermal bridging. Once the floor is finished, it is very hard to prove what was installed.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>External walls and insulation\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">External wall evidence should show the insulation type, location and continuity.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Capture:\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">• Cavity insulation or frame insulation\u003Cbr>• Full fill or partial fill cavity details\u003Cbr>• Insulation around openings\u003Cbr>• Insulation continuity at corners\u003Cbr>• Wall ties and cavity trays where relevant\u003Cbr>• Junctions with floors, roofs and party walls\u003Cbr>• Any areas where insulation has been cut around services\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Close up photos can be useful, but they should not be the only image. Take a wider photo as well so the location is clear.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Windows, doors and reveals\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Openings are common weak points for heat loss and air leakage.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Photograph:\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">• Window and door frames before final finishes\u003Cbr>• Cavity closers\u003Cbr>• Insulated reveals\u003Cbr>• Sill details\u003Cbr>• Head and jamb details\u003Cbr>• External door thresholds\u003Cbr>• Airtightness tapes or sealant where used\u003Cbr>• Labels or evidence linked to window and door specification\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">The photo should clearly show the plot and location. A close up of a reveal with no context may not be enough later.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Roof insulation and loft areas\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Roof and loft evidence often gets missed because the site team assumes it will be easy to see later. That is not always true.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Capture:\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">• Loft insulation depth\u003Cbr>• Insulation continuity at eaves\u003Cbr>• Sloping ceiling insulation\u003Cbr>• Dormer insulation where relevant\u003Cbr>• Roof junctions\u003Cbr>• Loft hatch insulation and sealing\u003Cbr>• Service penetrations through ceilings\u003Cbr>• Any areas around ducts, pipes or downlights\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">For loft insulation, include something that makes the depth clear, such as a visible gauge or reference point where appropriate.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Thermal bridges and junctions\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Thermal bridges occur where heat can bypass insulation more easily, often at junctions.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Photograph typical details such as:\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">• External wall to ground floor junctions\u003Cbr>• External wall to roof junctions\u003Cbr>• Corners\u003Cbr>• Window and door openings\u003Cbr>• Party wall junctions\u003Cbr>• Balcony or canopy connections where relevant\u003Cbr>• Steel penetrations or structural elements affecting insulation continuity\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">If the SAP calculation uses specific thermal bridging assumptions, the photo evidence should help support the details used.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Air barrier and sealing details\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Air leakage can affect performance and air test results.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Before details are covered, photograph:\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">• Service penetrations through the external envelope\u003Cbr>• Sealing around pipes and cables\u003Cbr>• Duct penetrations\u003Cbr>• Loft hatches\u003Cbr>• External door thresholds\u003Cbr>• Window perimeter sealing\u003Cbr>• Meter boxes\u003Cbr>• Soil pipe boxing\u003Cbr>• Utility penetrations\u003Cbr>• Fire collars and sealing where relevant\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">These photos also help the site team prepare for air testing. They do not replace the air test, but they can help identify weak points before the test date.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Heating and hot water systems\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Part L evidence is not only about insulation. Services matter too.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Photograph:\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">• Boiler, heat pump or heating appliance labels\u003Cbr>• Hot water cylinder model labels\u003Cbr>• Controls\u003Cbr>• Cylinder insulation\u003Cbr>• Pipe insulation\u003Cbr>• Commissioning records where available\u003Cbr>• Plant cupboard layout\u003Cbr>• Manufacturer details and model references\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">The SAP assessor needs accurate information on the installed system. If the product on site is different from the design assumption, it should be checked.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Ventilation systems\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Ventilation evidence is often left too late, especially where ducts are boxed in.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Capture:\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">• Ventilation unit labels\u003Cbr>• Duct routes before boxing\u003Cbr>• Insulated ducts where required\u003Cbr>• External terminals\u003Cbr>• Room terminals\u003Cbr>• Extract fan details\u003Cbr>• Commissioning information\u003Cbr>• Controls\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Part L and Part F often interact on real projects. Poor coordination between ventilation, airtightness and SAP evidence can create avoidable queries.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Solar PV and low carbon technology\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Where PV or other low carbon systems are included in the SAP design, collect evidence of what has been installed.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Photograph:\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">• PV panels on the roof\u003Cbr>• Inverter\u003Cbr>• Metering equipment\u003Cbr>• Layout compared with the design\u003Cbr>• Labels and model references\u003Cbr>• Battery storage where included\u003Cbr>• Electrical records where relevant\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">If PV output is part of the SAP strategy, the installed system should match the information used in the assessment.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>What makes a good Part L evidence photo?\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">A useful photo is not just a close up of a product.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">A good Part L evidence photo should show:\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">• The plot number\u003Cbr>• The room or location\u003Cbr>• The detail being recorded\u003Cbr>• Enough wider context to identify where it is\u003Cbr>• The completed detail before it is covered\u003Cbr>• Clear product labels where relevant\u003Cbr>• The date, either through file data or site records\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">The best approach is often two photos.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">First, take a wider context photo showing the plot and location.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Then take a close up showing the technical detail.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">This gives the assessor and project team a much better evidence record.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Common mistakes builders make with Part L photographic evidence\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Taking photos too late\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">This is the biggest issue. Once the detail is hidden, the evidence may be lost.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Taking photos with no plot reference\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">A good photo becomes much weaker if nobody knows which dwelling it belongs to.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Only taking close ups\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">A close up can show detail, but it may not prove location. Always include context.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Mixing photos across plots\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Repeated house types still need plot specific evidence. Do not assume one plot photo covers all plots.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Not linking photos to SAP changes\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">If the installed product changes, the SAP information may need updating. Photos should support the as built record.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Leaving evidence on phones\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Site photos need to be stored in a shared, structured place. A phone gallery is not an evidence system.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>How missed evidence can delay completion\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Missed evidence can create delays because the project team may need to:\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">• Revisit plots\u003Cbr>• Ask trades for old photos\u003Cbr>• Check hidden details\u003Cbr>• Confirm product specifications\u003Cbr>• Update SAP inputs\u003Cbr>• Respond to assessor queries\u003Cbr>• Provide clearer evidence to the building control body\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Not every missing photo causes a delay. But missing evidence often creates uncertainty, and uncertainty creates extra work at the worst time.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">By handover, the site team is already busy with finishing, testing, snagging, client inspections and completion paperwork. That is not the time to start building a photo record from scratch.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>How SAPAPP helps builders organise Part L evidence\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">SAPAPP gives builders a practical way to capture and manage Part L photographic evidence while the job is live.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Instead of scattered photos, SAPAPP helps organise evidence by:\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">• Plot\u003Cbr>• Detail type\u003Cbr>• Construction stage\u003Cbr>• Evidence status\u003Cbr>• Missing items\u003Cbr>• Product information\u003Cbr>• SAP related changes\u003Cbr>• Final evidence pack\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">This helps the site team see what has been captured and what still needs action.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">It also helps managers and assessors work from clearer information. The aim is simple. Capture the evidence once, in the right place, before it is too late.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>What information does ATSPACE need from you?\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">To help set up a Part L evidence process, ATSPACE would usually ask for:\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">• Latest drawings\u003Cbr>• SAP design information\u003Cbr>• Specification documents\u003Cbr>• Window and door schedules\u003Cbr>• Heating and hot water details\u003Cbr>• Ventilation strategy\u003Cbr>• Plot schedule\u003Cbr>• Construction programme\u003Cbr>• Any existing site photos\u003Cbr>• Details of product substitutions\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">If some information is missing, that does not mean the process cannot start. It simply means the gaps need to be visible and managed.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>What builders receive at the end\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">A good Part L evidence process should leave the builder with:\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">• Organised plot records\u003Cbr>• Clear photographic evidence\u003Cbr>• Missing evidence tracker\u003Cbr>• Product evidence checklist\u003Cbr>• SAP change notes\u003Cbr>• Air test preparation evidence where relevant\u003Cbr>• Final evidence folder structure\u003Cbr>• Fewer last minute information requests\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">The goal is not paperwork for the sake of paperwork. The goal is a clear, usable record that supports the final SAP and Part L process.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Why ATSPACE\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">ATSPACE works with builders who need practical compliance support, not vague advice.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">We understand that sites move quickly. We also understand that evidence must match the real build, not just the design drawing.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">With SAPAPP, we help builders capture the right photos, organise them properly and keep the evidence aligned with SAP inputs and Part L requirements.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">We do not promise approval or guaranteed outcomes. We do provide structured, evidence led support that helps reduce avoidable risk before completion.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>FAQ\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Is Part L photographic evidence required for every new dwelling?\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Approved Document L says photographic evidence should be provided for each individual dwelling and should be unique to that property. \u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Who should take the Part L photos?\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">The photos can be taken by the site team, builder, developer or others involved in the project. The important point is that they are clear, traceable and available to the relevant parties.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Do Part L photos replace SAP calculations?\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">No. Photos support the evidence trail. SAP calculations are still required where applicable, and SAP remains the method used to calculate the energy performance of homes. \u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>When is the best time to take Part L photos?\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Take photos when each detail is complete but before close up works. This is especially important for insulation, junctions, service penetrations and duct routes.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>What happens if we miss a photo?\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">It depends on the detail and the project stage. A missed photo may lead to extra queries, a site review or further evidence checks. The best approach is to identify missing evidence early.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Do repeated house types need separate photos?\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Yes. Evidence should be collected for each individual dwelling. Repeated details can help with consistency, but each plot still needs its own record.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Can SAPAPP help if we are already near handover?\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Yes. SAPAPP can still help organise existing photos, identify gaps and create a clearer evidence pack. However, it works best when used before key details are covered.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Does organised photographic evidence guarantee Part L compliance?\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">No. Organised evidence does not guarantee compliance or building control acceptance. It helps the project team provide clearer records and reduce avoidable information gaps.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">\u003Cb>Call to action\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fb>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">Part L photographic evidence is easiest to collect when the work is still visible.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>\n\u003Cp class=\"MsoNormal\">If your site is approaching close up, air testing or final SAP review, speak to ATSPACE now. We can help you set up SAPAPP, review your current evidence and give your team a clear route to close out.\u003Co:p>\u003C\u002Fo:p>\u003C\u002Fp>","leading-relaxed","tracking-normal","[&_p]:my-0 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