This was involved with the following buildings or structures from the date specified (click on an item to view details): |
| Date started | Building name | Town, district or village | Island | City or county | Country | Notes |
| | Cork Dental Hospital | | | Cork | Eire | date not known |
| | Glasgow School of Art, Foulis Building | | | Glasgow | Scotland | |
| | Leeds General Hospital | Leeds | | Yorkshire | England | date not known |
| After 1955 | Burgh of Ayr Infectious Diseases Hospital | Ayr | | Ayrshire | Scotland | Outpatients and Casualty Building - R R C De'Ath as job architect? |
| 1956 | Littlewoods Store | | | Glasgow | Scotland | |
| 1957 | Southern General Hospital, Accident and Orthopaedic block | | | Glasgow | Scotland | R R C De'Ath responsible. |
| 7 November 1958 | Offices for Motherwell Bridge and Engineering Company | Motherwell | | Lanarkshire | Scotland | per Builder p773 |
| 1959 | St Benedict's RC Primary School | Easterhouse | | Glasgow | Scotland | |
| 1959 | Stirling Royal Infirmary | Stirling | | Stirlingshire | Scotland | Additional wards (per Builder p978) and perhaps other additions (like chest diseases unit?) |
| c. 1959(?) | BEA Control Centre | Newton Mearns | | Renfrewshire | Scotland | |
| c. 1959(?) | BEA Control Centre | Kirkintilloch | | Dunbartonshire | Scotland | |
| Late 1959 | Law Hospital | Carluke | | Lanarkshire | Scotland | Laboratories added |
| Late 1950s | Belvidere Hospital | | | Glasgow | Scotland | Poliomyelius Unit |
| Late 1950s | Glasgow Academy, Memorial Hall | | | Glasgow | Scotland | |
| 1960s | Dixons Blazes Industrial estate | | | Glasgow | Scotland | |
| 1960s | Industrial Estate | Rutherglen | | Glasgow | Scotland | |
| 1960s | Industrial Estate | Birkenshaw | | Yorkshire | England | |
| 1960 | Glasgow University, Naval Architecture Testing Tank | | | Glasgow | Scotland | R R C De'Ath responsible |
| 1960 | University of Glasgow, Stevenson Physical Education Building | | | Glasgow | Scotland | |
| After 1960 | Belvidere Hospital | | | Glasgow | Scotland | Limb and appliance clinic - R R C De'Ath responsible. |
| After 1960 | Stirling Royal Infirmary, Outpatients and Casualty Department | Stirling | | Stirlingshire | Scotland | R R C De'Ath entirely responsible. |
| 1961 | Littlewoods Supermarket | | | Aberdeen | Scotland | |
| 1961 | Student Amenity Building, Glasgow University | | | Glasgow | Scotland | R R C De'Ath responsible |
| 6 January 1961 | Anderston Free Church | Hillhead | | Glasgow | Scotland | per Builder p37 |
| 22 September 1961 | Industrial Estate between Gorbals and Govanhill | | | Glasgow | Scotland | consulting architects; responsible for site plan and design of factories per Builder p541 |
| 1962 | Garnethill redevelopment | Garnethill | | Glasgow | Scotland | |
| 1962 | Jordanhill College, Crawfurd Building | | | Glasgow | Scotland | |
| 1963 | Falkirk Royal Infirmary | Falkirk | | Stirlingshire | Scotland | Experimental block (and theatre block?) |
| 1963 | University of Glasgow, Biochemistry Buildings | | | Glasgow | Scotland | |
| 1964 | Govan Combination Poorhouse and Asylum | Govan | | Glasgow | Scotland | Maternity Unit, new kitchen and staff dining rooms, new pharmacy building, rehabilitation centre and staff residential accommodation. |
| 1964 | Johnstone High School | Johnstone | | Renfrewshire | Scotland | |
| 1964 | Mechanised Parcels Depot for British Road Services, Taylor Woodrow Industrial Estate | Dixon's Blazes, Govanhill | | Glasgow | Scotland | |
| 1964 | University of Glasgow, Hydrodynamics Laboratory and Astronomy Building | | | Glasgow | Scotland | |
| 1965 | University of Glasgow Students Union | | | Glasgow | Scotland | Extension to E gable |
| 1965 | Westerm Infirmary, accident and emergency department | | | Glasgow | Scotland | |
| 1965 | Western Infirmary Redevelopment Phases I and II | | | Glasgow | Scotland | |
| 1966(?) | Cranhill Secondary School | Cranhill | | Glasgow | Scotland | |
| 1966 | University of Glasgow, Engineering Block | | | Glasgow | Scotland | |
| 12 August 1966 | Jordanhill College, (Scottish School of Physical Education) Science and Mathematics Building | | | Glasgow | Scotland | |
| 1967 | Jordanhill College, Henry Wood Building | | | Glasgow | Scotland | |
| 1967 | Jordanhill College, refectory | Jordanhill | | Glasgow | Scotland | |
| 1967 | Premises for Littlewoods Mail Order Service | | | Edinburgh | Scotland | |
| 1967 | Stirling Royal Infirmary, Maternity Unit | Stirling | | Stirlingshire | Scotland | |
| 1968 | Gartnavel General Hospital | | | Glasgow | Scotland | |
| 1968 | Glasgow University, Materia Medica and Physiology Buildings | | | Glasgow | Scotland | Upgrade of West Medical Building |
| 1968 | Sheriff Court of Glasgow, Gorbals Street | | | Glasgow | Scotland | |
| 1968 | Stanmore House | Lanark | | Lanarkshire | Scotland | |
| 1968 | Stirling Royal Infirmary | Stirling | | Stirlingshire | Scotland | kitchen and dining block |
| c. 1968 | Woodside Health Centre | | | Glasgow | Scotland | |
| 1969 | Kirkintilloch High School | Kirkintilloch | | Dunbartonshire | Scotland | |
| 1969 | University of Glasgow, Rankine Building | | | Glasgow | Scotland | |
| Late 1960s | Stirling Royal Infirmary, nurses' residence | Stirling | | Stirlingshire | Scotland | |
| Mid 1960s | Primary School for Dumbarton County Council | Dumbarton | | Dunbartonshire | Scotland | |
| 1970 | Glasgow College of Food Technology | | | Glasgow | Scotland | |
| 1970 | Glasgow School of Art, Fra Newbery Tower | | | Glasgow | Scotland | |
| 1970 | Western Infirmary, nurses' home | | | Glasgow | Scotland | |
| c. 1970(?) | Glasgow School of Art, Bourdon Building | | | Glasgow | Scotland | |
| 1971 | Western Infirmary, nurses' training school | | | Glasgow | Scotland | |
| 1974 | Airdrie District (Monklands) General Hospital | Airdrie | | Lanarkshire | Scotland | |
| Before 1975 | St Gregory's School | Renfrew | | Renfrewshire | Scotland | |
| Before 1975 | Store for Littlewoods | Kirkcaldy | | Fife | Scotland | |
| 1976 | Mitchell Arcade | Rutherglen | | Glasgow/Lanarkshire | Scotland | |
| 1977 | St David's UF Church Hall and Offices | Kirkintilloch | | Dunbartonshire | Scotland | Harled additions |
| 1978 | Beaumont Hospital | | | | Eire | |
| 1978 | The Willow Tea Rooms | | | Glasgow | Scotland | Major reconstruction. |
| 1980 | Apsley House | | | Glasgow | Scotland | |
| Before 1981 | Bakery for RHM Ltd | Ayr | | Ayrshire | Scotland | |
| Before 1981 | Bakery for RHM Ltd | | | Glasgow | Scotland | |
| Before 1981 | Cork Regional Hospital | | | Cork | Eire | |
| Before 1981 | Glasgow High School | | | Glasgow | Scotland | |
| Before 1981 | Head office for GKN Ltd | | | Birmingham | | |
| Before 1981 | Health Centre | Airdrie | | Lanarkshire | | |
| Before 1981 | Health Centre | Greenock | | Renfrewshire | Scotland | |
| Before 1981 | Housing for Hanover Housing Association | Dunblane | | Perthshire | Scotland | |
| Before 1981 | Housing for the Hanover Housing Association | Earlston | | Berwickshire | Scotland | |
| Before 1981 | Housing for the Hanover Housing Association | Livingston | | West Lothian | Scotland | |
| Before 1981 | Housing for the Hanover Housing Association | Dumfries | | Dumfriesshire | Scotland | |
| Before 1981 | Housing for the Hanover Housing Association | | | Glasgow | Scotland | |
| Before 1981 | Industrial Estate for Taylor Woodrow Industrial Estates | Stirling | | Stirlingshire | Scotland | |
| Before 1981 | Industrial Estate for Taylor Woodrow Industrial Estates | Cambuslang | | Glasgow | Scotland | |
| Before 1981 | Industrial Estate for the SDA | Newhouse | | Lanarkshire | Scotland | |
| Before 1981 | Industrial Estate for the SDA | Alexandria | | Dunbartonshire | Scotland | |
| Before 1981 | Office block for John Laing Development Company | | | Glasgow | Scotland | |
| Before 1981 | Office block for Ravenstone Securities Ltd | | | Dublin | | |
| Before 1981 | Regional General Hospital | | | Dublin | Eire | |
| Before 1981 | Shopping Centre | Baillieston | | Glasgow | Scotland | |
| 1986 | The Forge Centre | Parkhead | | Glasgow | Scotland | |
| 1987 | 202-228 St Vincent Street | | | Glasgow | Scotland | Interiors gutted and replaced. |
| 1987 | Ayr Hospital | Ayr | | Ayrshire | Scotland | |