| House Prices in Layton Street, Welwyn Garden City AL7 | £305,880 | 10 | 42 |
| House Prices in Lea Green, Hatfield AL9 | £523,000 | 4 | - |
| House Prices in Leaside Close, Welwyn Garden City AL8 | £617,000 | 8 | - |
| House Prices in Leefe Way, Cuffley, Potters Bar EN6 | £1,047,600 | 7 | - |
| House Prices in Leefield, Welwyn Garden City AL7 | £341,800 | 16 | 8 |
| House Prices in Leigh Common, Welwyn Garden City AL7 | £402,900 | 54 | 17 |
| House Prices in Lemsford House, Brocket Road, Lemsford, Welwyn Garden City AL8 | £1,599,000 | 1 | 1 |
| House Prices in Lemsford Lane, Welwyn Garden City AL8 | £479,086 | 87 | 4 |
| House Prices in Lemsford Road, Hatfield AL10 | £307,244 | 63 | 152 |
| House Prices in Lemsford Village, Lemsford, Welwyn Garden City AL8 | £804,560 | 39 | 5 |
| House Prices in Lemsford, Welwyn Garden City AL8 | - | 4 | 14 |
| House Prices in Leonards Close, Welwyn AL6 | £830,400 | 7 | 1 |
| House Prices in Les Travees, Digswell Lane, Welwyn AL6 | £1,551,000 | 1 | 1 |
| House Prices in Leysdown, Welwyn Garden City AL7 | £432,579 | 17 | 7 |
| House Prices in Ley Walk, Welwyn Garden City AL7 | - | 1 | 59 |
| House Prices in Liberty House, Bessemer Road, Welwyn Garden City AL7 | £221,286 | - | 92 |
| House Prices in Lilac Close, Hatfield AL10 | - | 7 | - |
| House Prices in Lime Cottages, Hatfield AL9 | - | 1 | 1 |
| House Prices in Lime Tree Court, Hatfield AL10 | - | - | 22 |
| House Prices in Limewood House, Calder Avenue, Brookmans Park, Hatfield AL9 | £1,815,000 | 1 | 1 |
| House Prices in Linces Farm Cottages, Welwyn AL6 | £1,225,500 | 2 | 1 |
| House Prices in Linces Way, Welwyn Garden City AL7 | £438,571 | 12 | - |
| House Prices in Lincoln Close, Welwyn Garden City AL7 | £271,393 | 67 | 35 |
| House Prices in Lindbergh, Welwyn Garden City AL7 | £561,375 | 9 | - |
| House Prices in Link Close, Hatfield AL10 | - | 6 | 2 |
| House Prices in Link Drive, Hatfield AL10 | - | 4 | - |
| House Prices in Linkfield, Welwyn Garden City AL7 | £416,211 | 42 | 1 |
| House Prices in Link Road, Welwyn AL6 | £465,500 | 2 | - |
| House Prices in Link Walk, Hatfield AL10 | £363,190 | 33 | - |
| House Prices in Linnet Walk, Hatfield AL10 | £367,375 | 16 | - |
| House Prices in Little Bedwell, Cucumber Lane, Essendon, Hatfield AL9 | £4,560,000 | 1 | 1 |
| House Prices in Little Dell, Welwyn Garden City AL8 | £463,800 | 20 | - |
| House Prices in Little Ganett, Welwyn Garden City AL7 | £385,474 | 48 | - |
| House Prices in Little Lake, Welwyn Garden City AL7 | £415,889 | 19 | - |
| House Prices in Little Ley, Welwyn Garden City AL7 | £468,500 | 14 | - |
| House Prices in Littlemead, Hatfield AL10 | £278,636 | 18 | 18 |
| House Prices in Little Rivers, Welwyn Garden City AL7 | £394,667 | 9 | 1 |
| House Prices in Little Thistle, Welwyn Garden City AL7 | £394,300 | 42 | - |
| House Prices in Little Wade, Welwyn Garden City AL7 | £397,200 | 8 | - |
| House Prices in Little Youngs, Welwyn Garden City AL8 | £932,125 | 12 | - |
| House Prices in Lockley Crescent, Hatfield AL10 | £455,068 | 77 | 1 |
| House Prices in Lockleys Drive, Welwyn AL6 | £642,000 | 10 | - |
| House Prices in Lockleys, Welwyn AL6 | £4,655,000 | 8 | - |
| House Prices in Lodge Drive, Hatfield AL9 | £922,200 | 15 | - |
| House Prices in Lodgefield, Welwyn Garden City AL7 | £434,000 | 88 | - |
| House Prices in Lodge Field, Welwyn Garden City AL7 | £403,275 | 40 | - |
| House Prices in London Road, Welwyn AL6 | £541,250 | 65 | 15 |
| House Prices in Longcroft Gardens, Welwyn Garden City AL8 | £541,038 | 52 | 1 |
| House Prices in Longcroft Green, Welwyn Garden City AL8 | £562,000 | 4 | - |
| House Prices in Longcroft House, Fretherne Road, Welwyn Garden City AL8 | £321,300 | 1 | 41 |
| House Prices in Longcroft Lane, Welwyn Garden City AL8 | £619,430 | 135 | 13 |
| House Prices in Longfield House, St Albans Road West, Hatfield AL10 | £243,250 | - | 9 |
| House Prices in Longlands Road, Welwyn Garden City AL7 | £417,333 | 50 | - |
| House Prices in Long Ley, Welwyn Garden City AL7 | £569,429 | 55 | 51 |
| House Prices in Longmead, Hatfield AL10 | £290,727 | 49 | 37 |
| House Prices in Longmore Gardens, Welwyn Garden City AL7 | £352,625 | 19 | 1 |
| House Prices in Lords Wood, Welwyn Garden City AL7 | £387,143 | 89 | 12 |
| House Prices in Lothair Court, Hatfield AL10 | £149,400 | - | 5 |
| House Prices in Lothair Court, The Common, Hatfield AL10 | £147,333 | - | 13 |
| House Prices in Lowe House, Knebworth SG3 | £308,217 | - | 46 |
| House Prices in Lowerfield, Welwyn Garden City AL7 | £417,409 | 49 | - |
| House Prices in Lower Green, Tewin, Welwyn AL6 | £633,423 | 47 | 4 |
| House Prices in Lower Mardley Hill, Welwyn AL6 | £832,500 | 12 | - |
| House Prices in Lower Woodside, Hatfield AL9 | - | 2 | - |
| House Prices in Lowlands, Hatfield AL9 | £784,000 | 11 | - |
| House Prices in Ludwick Close, Welwyn Garden City AL7 | - | 7 | 7 |
| House Prices in Ludwick Way, Welwyn Garden City AL7 | £303,855 | 122 | 78 |
| House Prices in Lumbards, Welwyn Garden City AL7 | £489,077 | 59 | - |
| House Prices in Lydia Court, Lydia Mews, Welham Green, Hatfield AL9 | £220,125 | - | 8 |
| House Prices in Lydia Mews, Welham Green, Hatfield AL9 | £393,375 | 9 | 9 |
| House Prices in Lynde Lodge, Butterwick Way, Welwyn AL6 | £431,429 | - | 17 |
| House Prices in Lynmouth Road, Welwyn Garden City AL7 | - | 36 | 19 |
| House Prices in Lysley Place, Brookmans Park, Hatfield AL9 | £1,669,500 | 5 | - |
| House Prices in Lytton Gardens, Welwyn Garden City AL8 | £747,889 | 14 | - |
| House Prices in Madison House, Bessemer Road, Welwyn Garden City AL7 | £149,538 | - | 13 |
| House Prices in Magpie Walk, Hatfield AL10 | £363,500 | 16 | - |
| House Prices in Maidensfield, Welwyn Garden City AL8 | £221,231 | 1 | 29 |
| House Prices in Maizefield House, Moors Walk, Welwyn Garden City AL7 | £239,500 | - | 19 |
| House Prices in Malmsdale, Welwyn Garden City AL8 | £470,286 | 9 | - |
| House Prices in Malting Mead, Hatfield AL10 | £263,233 | - | 30 |
| House Prices in Malvern Close, Hatfield AL10 | £399,000 | 14 | - |
| House Prices in Mandeville Rise, Welwyn Garden City AL8 | £1,230,294 | 24 | - |
| House Prices in Mannicotts, Welwyn Garden City AL8 | £1,118,714 | 16 | - |
| House Prices in Manor Close, Hatfield AL10 | £446,111 | 19 | 4 |
| House Prices in Manor Cottage, Vineyards Road, Northaw, Potters Bar EN6 | £1,307,000 | 2 | - |
| House Prices in Manor Parade, Hatfield AL10 | £457,600 | 4 | 17 |
| House Prices in Manor Road, Hatfield AL10 | £549,591 | 32 | 1 |
| House Prices in Mansfield Place, Cuffley, Potters Bar EN6 | £448,000 | - | 9 |
| House Prices in Maple Close, Hatfield AL10 | - | 9 | - |
| House Prices in Maple Grove, Welwyn Garden City AL7 | £438,543 | 87 | - |
| House Prices in Maran Avenue, Welwyn AL6 | £440,071 | 24 | - |
| House Prices in Marconi Way, St Albans AL4 | £880,289 | 68 | 2 |
| House Prices in Mardley Avenue, Welwyn AL6 | £739,273 | 30 | 2 |
| House Prices in Mardley Dell, Welwyn AL6 | £1,107,250 | 16 | - |
| House Prices in Mardley Heights, Welwyn AL6 | £820,200 | 10 | 5 |
| House Prices in Mardley Hill, Welwyn AL6 | £908,615 | 37 | 2 |
| House Prices in Mardleywood, Welwyn AL6 | £904,636 | 28 | - |
| House Prices in Mardley Wood, Welwyn AL6 | £773,125 | 8 | - |
| House Prices in Margery Lane, Tewin, Welwyn AL6 | £1,175,000 | 4 | - |
| House Prices in Margery Wood, Welwyn Garden City AL7 | £278,909 | 47 | 25 |
