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					<dc:identifier>http://www.legislation.gov.uk/asc/2026/5/section/4/welsh</dc:identifier><dc:title>Deddf Diogelwch Adeiladau (Cymru) 2026</dc:title><dc:language>cy</dc:language><dc:publisher>Statute Law Database</dc:publisher><dc:modified>2026-06-25</dc:modified><dc:contributor>Expert Participation</dc:contributor><dct:valid>2026-04-28</dct:valid>
					
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									<ukm:Notes><ukm:Note IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/notes" DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/notes/welsh"/><ukm:Alternatives><ukm:Alternative URI="http://www.legislation.gov.uk/asc/2026/5/pdfs/ascen_20260005_we.pdf" Date="2026-05-22" Title="Explanatory Note" TitleWelsh="Nodiadau Esboniadol - Welsh" Size="2726839" Language="Welsh"/><ukm:Alternative URI="http://www.legislation.gov.uk/asc/2026/5/pdfs/ascen_20260005_mi.pdf" Date="2026-05-22" Title="Explanatory Note - Mixed Language" TitleWelsh="Explanatory Note - Mixed Language" Size="4566700" Language="Mixed"/><ukm:Alternative URI="http://www.legislation.gov.uk/asc/2026/5/pdfs/ascen_20260005_en.pdf" Date="2026-05-22" Title="Explanatory Note - English" Size="3600739"/></ukm:Alternatives>       
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				</ukm:Metadata><Primary><Body DocumentURI="http://www.legislation.gov.uk/asc/2026/5/body/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/body" NumberOfProvisions="156" NumberFormat="default" TerritorialApplication="W" RestrictExtent="E+W" RestrictStartDate="2026-04-28"><Part DocumentURI="http://www.legislation.gov.uk/asc/2026/5/part/1/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/part/1" NumberOfProvisions="90" id="part-1" TerritorialApplication="W" RestrictExtent="E+W" RestrictStartDate="2026-04-28"><Number>RHAN 1</Number><Title>DIOGELWCH ADEILADAU SY’N CYNNWYS DWY NEU RAGOR O UNEDAU PRESWYL</Title><Chapter DocumentURI="http://www.legislation.gov.uk/asc/2026/5/part/1/chapter/2/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/part/1/chapter/2" NumberOfProvisions="16" id="part-1-chapter-2" TerritorialApplication="W" RestrictExtent="E+W" RestrictStartDate="2026-04-28"><Number>PENNOD 2</Number><Title>TERMAU ALLWEDDOL</Title><Pblock DocumentURI="http://www.legislation.gov.uk/asc/2026/5/part/1/chapter/2/crossheading/adeiladau-rheoleiddiedig-unedau-preswyl-a-chategorau-adeiladau/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/part/1/chapter/2/crossheading/adeiladau-rheoleiddiedig-unedau-preswyl-a-chategorau-adeiladau" NumberOfProvisions="6" id="part-1-chapter-2-crossheading-adeiladau-rheoleiddiedig-unedau-preswyl-a-chategorau-adeiladau" TerritorialApplication="W" RestrictExtent="E+W" RestrictStartDate="2026-04-28"><Title>Adeiladau rheoleiddiedig, unedau preswyl a chategorïau adeiladau</Title><P1group ConfersPower="true" TerritorialApplication="W" RestrictExtent="E+W" RestrictStartDate="2026-04-28"><Title>Ystyr “rhan annibynnol”</Title><P1 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4" id="section-4">
<Pnumber PuncAfter=""><CommentaryRef Ref="key-6894ec6a0b356c7c3fb8302a2b006414"/>4</Pnumber>
<P1para>
<P2 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/1/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/1" id="section-4-1">
<Pnumber>1</Pnumber>
<P2para>
<Text>Mae rhan o strwythur nad yw ynghlwm neu set o strwythurau yn rhan annibynnol o’r strwythur neu’r set os—</Text>
<P3 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/1/a/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/1/a" id="section-4-1-a">
<Pnumber>a</Pnumber>
<P3para>
<Text>nad oes iddi fynediad i unrhyw ran arall o’r strwythur neu’r set, a</Text>
</P3para>
</P3>
<P3 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/1/b/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/1/b" id="section-4-1-b">
<Pnumber>b</Pnumber>
<P3para>
<Text>yw’n ffurfio rhaniad fertigol o’r strwythur neu’r set (gweler hefyd is-adran (5) yn achos strwythur nad yw ynghlwm).</Text>
</P3para>
</P3>
</P2para>
</P2>
<P2 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/2/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/2" id="section-4-2">
<Pnumber>2</Pnumber>
<P2para>
<Text>Mae rhan o strwythur nad yw ynghlwm neu set o strwythurau yn ffurfio rhaniad fertigol o’r strwythur neu’r set os—</Text>
<P3 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/2/a/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/2/a" id="section-4-2-a">
<Pnumber>a</Pnumber>
<P3para>
<Text>yw’r strwythur neu’r set wedi ei rannu neu ei rhannu gan y rhan, a</Text>
</P3para>
</P3>
<P3 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/2/b/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/2/b" id="section-4-2-b">
<Pnumber>b</Pnumber>
<P3para>
<Text>yw’r rhaniad ar hyd plân fertigol.</Text>
</P3para>
</P3>
</P2para>
</P2>
<P2 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/3/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/3" id="section-4-3">
<Pnumber>3</Pnumber>
<P2para>
<Text>Wrth benderfynu a yw rhan (“rhan A”) o strwythur nad yw ynghlwm neu set o strwythurau yn ffurfio rhaniad fertigol o’r strwythur neu’r set, mae unrhyw ran arall o’r strwythur hwnnw neu’r set honno—</Text>
<P3 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/3/a/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/3/a" id="section-4-3-a">
<Pnumber>a</Pnumber>
<P3para>
<Text>sy’n rhan nad oes gan ran A fynediad iddi,</Text>
</P3para>
</P3>
<P3 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/3/b/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/3/b" id="section-4-3-b">
<Pnumber>b</Pnumber>
<P3para>
<Text>sy’n rhan amhreswyl, ac</Text>
</P3para>
</P3>
<P3 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/3/c/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/3/c" id="section-4-3-c">
<Pnumber>c</Pnumber>
<P3para>
<Text>a fyddai fel arall yn atal rhan A rhag ffurfio rhaniad fertigol o’r strwythur neu’r set,</Text>
</P3para>
</P3>
<Text>i’w thrin fel pe na bai’n atal rhan A rhag ffurfio rhaniad fertigol o’r strwythur neu’r set.</Text>
</P2para>
</P2>
<P2 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/4/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/4" id="section-4-4">
<Pnumber>4</Pnumber>
<P2para>
<Text>Mae rhan o strwythur nad yw ynghlwm neu set o strwythurau yn rhan amhreswyl os‍ yw’n bodloni’r ddau amod a ganlyn—</Text>
<P3 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/4/a/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/4/a" id="section-4-4-a">
<Pnumber>a</Pnumber>
<P3para>
<Text>nid yw’n cynnwys uned breswyl na rhan o uned breswyl;</Text>
</P3para>
</P3>
<P3 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/4/b/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/4/b" id="section-4-4-b">
<Pnumber>b</Pnumber>
<P3para>
<Text>nid yw’n cynnwys ardal, na rhan o ardal, a ddarperir at ddefnydd, er budd neu er mwynhad preswylwyr unedau preswyl yn y strwythur neu’r set.</Text>
</P3para>
</P3>
</P2para>
</P2>
<P2 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/5/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/5" id="section-4-5">
<Pnumber>5</Pnumber>
<P2para>
<Text>Yn achos rhan o strwythur nad yw ynghlwm—</Text>
<P3 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/5/a/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/5/a" id="section-4-5-a">
<Pnumber>a</Pnumber>
<P3para>
<Text>sydd yn bodloni’r maen prawf yn is-adran (1)(a), a</Text>
</P3para>
</P3>
<P3 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/5/b/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/5/b" id="section-4-5-b">
<Pnumber>b</Pnumber>
<P3para>
<Text>a fyddai’n bodloni’r maen prawf yn is-adran (1)(b), oni bai na all y rhan rannu’r strwythur am y rheswm bod y rhan yn ffurfio lled cyfan y strwythur,</Text>
</P3para>
</P3>
<Text>mae’r rhan yn rhan annibynnol.</Text>
</P2para>
</P2>
<P2 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/6/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/6" id="section-4-6">
<Pnumber>6</Pnumber>
<P2para>
<Text>Caiff Gweinidogion Cymru drwy reoliadau ddarparu, mewn amgylchiadau a bennir yn y rheoliadau, fod rhan o strwythur nad yw ynghlwm neu set o strwythurau yn rhan annibynnol, er nad yw’r rhan yn bodloni’r meini prawf ar gyfer bod yn rhan annibynnol (fel y nodir yn yr adran hon).</Text>
</P2para>
</P2>
<P2 DocumentURI="http://www.legislation.gov.uk/asc/2026/5/section/4/7/welsh" IdURI="http://www.legislation.gov.uk/id/asc/2026/5/section/4/7" id="section-4-7">
<Pnumber>7</Pnumber>
<P2para>
<Text>Yn yr adran hon, ystyr “mynediad” yw drws, porth bwaog neu agoriad tebyg ond nid yw’n cynnwys drws, porth bwaog nac agoriad tebyg a fwriedir at ddefnydd eithriadol (gan gynnwys defnydd brys) neu ei ddefnyddio at ddibenion cynnal a chadw.</Text>
</P2para>
</P2>
</P1para>
</P1></P1group></Pblock></Chapter></Part></Body></Primary><Commentaries><Commentary Type="I" id="key-6894ec6a0b356c7c3fb8302a2b006414"><Para><Text>A. 4  mewn grym ar 28.4.2026, gweler <CitationSubRef id="n503171347863a442" SectionRef="section-138-1-a" URI="http://www.legislation.gov.uk/id/asc/2026/5/section/138/1/a" Operative="true">a. 138(1)(a)</CitationSubRef></Text></Para></Commentary></Commentaries></Legislation>