| Gairdin Beag, Main Street | — | 6 |
| Galey House, Cityquarter | — | 8 |
| Garnafailagh, Athlone | — | 6 |
| Garrycastle, Athlone | — | 7 |
| Gaybrook, Mullingar | — | 6 |
| Gillardstown, Castlepollard | — | 6 |
| Ginnell Terrace, Mullingar | €175,000 | 39 |
| Glanmore Heights, Dun an Ri | €328,198 | 22 |
| Glasson, Athlone | — | 9 |
| Glasson Mews, Glasson | — | 5 |
| Gleann Alainn, Collinstown | — | 12 |
| Gleann Duchais, Moate | — | 9 |
| Gleann Petit, Dublin Road | — | 17 |
| Gleann Petit, Mullingar | — | 16 |
| Gleann Petit Green, Dublin Road | — | 6 |
| Gleann Petit Green, Mullingar | — | 5 |
| Gleann Petit Park, Dublin Road | €348,017 | 17 |
| Gleann Petit Park, Mullingar | €330,396 | 21 |
| Glebe Park, Rathwire | — | 7 |
| Glen View, Castlepollard | — | 6 |
| Glenatore, Athlone | €325,000 | 11 |
| Glenatore, Coosan | €343,612 | 38 |
| Glenidan, Collinstown | — | 8 |
| Glenmore Wood, Dublin Road | €305,000 | 73 |
| Glenmore Wood, Mullingar | €342,000 | 69 |
| Glenmore Woods, Dublin Road | — | 6 |
| Glenmore Woods, Mullingar | — | 10 |
| Glenview Heights, Mullingar | €235,000 | 24 |
| Gneevebawn, Tyrrellspass | — | 8 |
| Golden Island, Athlone | €155,000 | 15 |
| Gort An Locha, Lake Road | €272,247 | 9 |
| Gort An Locha, Moate | €260,793 | 19 |
| Gort na Locha, Lake Road | €260,793 | 5 |
| Grand Parade, Mullingar | — | 9 |
| Grange Heights, Mullingar | — | 7 |
| Grange Park, Mullingar | €161,000 | 20 |
| Grange Village, Mullingar | €143,000 | 28 |
| Grangemore, Raharney | — | 10 |
| Great Oaks, Mullingar | — | 6 |
| Greatdown, The Downs | €330,000 | 10 |
| Green Park Meadows, Mullingar | — | 7 |
| Green Road, Mullingar | €210,000 | 23 |
| Greenfield Heights, Rathwire | €255,000 | 19 |
| Greenpark Meadows, Ballymahon Road | €300,000 | 30 |
| Greenpark Meadows, Mullingar | €300,000 | 117 |
| Greville Park, Mullingar | €330,396 | 63 |
| Greville Park, Rathgowan | €330,396 | 61 |
| Griffinstown, Kinnegad | — | 9 |
| Grove Court, Grove Street | €175,000 | 22 |
| Grove Court, Mullingar | — | 5 |
| Grove Street, Mullingar | — | 11 |
| Grovelands, Ballymahon Rd | — | 6 |
| Grovemount, Moate | — | 6 |
| The Gables, Lakepoint | €362,267 | 8 |
| The Gables, Lakepoint Park | — | 8 |
| The Gallops, Kilbeggan | €217,000 | 30 |
| The Gallops, Tullamore Road | €195,000 | 14 |
| The Glebe, Cityquarter | — | 15 |
| The Glen, Coosan | €278,750 | 34 |
| The Glen, Coosan Road | — | 9 |
| The Green, Lakepoint | €297,500 | 13 |
| The Green, Lakepoint Park | €280,000 | 21 |
| The Green, Market Point | — | 7 |
| The Grove, Lakepoint Park | — | 6 |