Planning application
5/2026/1149
25 Mansdale Road Redbourn Hertfordshire Al3 7Dl
Proposal
Certificate of Lawfulness (proposed) - creation of rear extension including internal refurbishment and creation of ground floor WC
As published by the council, reference 5/2026/1149
Timeline
Dates from the published record
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12 Jun 2026
Received by St Albans
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13 Jun 2026
Validated
Checked as complete and ready for consideration.
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24 Jul 2026
Added to PlanIndex
After the decision
The process from here
The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.
If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.
About lawful development applications
How this application type works
A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.
Nearby applications
Within 500 metres
-
5/2026/1031 Granted
5 Flamsteadbury Lane Redbourn Hertfordshire Al3 7Dh
Certificate of Lawfulness (proposed) - Construction of single storey rear 3m extension, maximum eaves height 3m and maximum ridge height 4m
-
TP/2026/0316 Decided
Thatch End 30 West Common Redbourn Hertfordshire Al3 7Df
Fell the dead Silver Birch on the left-hand-side of the front garden. Reasons: Safety.
-
5/2026/0982 Decided
55-61 & 63-69 Stephens Way Redbourn Hertfordshire Al3 7Ea
Replacement of windows and shiplap cladding panels
-
5/2026/0981 Decided
47- 53 (Odds) Stephens Way Redbourn Hertfordshire Al3 7Ea
Replacement of windows and shiplap cladding panels
-
5/2026/0980 Decided
19 - 25 (Odds) Stephens Way Redbourn Hertfordshire Al3 7Dz
Replacement of windows and shiplap cladding panels
-
5/2026/0978 Decided
2 - 8 (Evens) Stephens Way Redbourn Hertfordshire Al3 7Dz
Replacement of windows and shiplap cladding panels
Other lawful development applications
In St Albans
-
5/2026/1430 Decided
42 Holywell Hill St Albans Hertfordshire Al1 1Bx
Certificate of Lawfulness (proposed works to a Listed Building) - Replace master bathroom suite on 1st floor of property. Modern bathroom to be replaced with new suite, including new shower cubicle. It will use existing water and waste routes , and tiling
-
5/2026/0901 Granted
37 Saxon Road Wheathampstead Hertfordshire Al4 8Nz
Certificate of Lawfulness (proposed) - Timber framed garden room to be built on ground screw foundation. Dimensions 3m x 4.2 & under 2.5m in height. This will be 1.4m distance from boundary to neighbour. This will be situation at the end of the garden
-
5/2026/1399 Decided
10 Birchwood Way Park Street St Albans Hertfordshire Al2 2Sg
Certificate of Lawfulness (proposed) - Loft conversion with rear dormer and 3No. roof lights to front elevation
-
5/2026/1031 Granted
5 Flamsteadbury Lane Redbourn Hertfordshire Al3 7Dh
Certificate of Lawfulness (proposed) - Construction of single storey rear 3m extension, maximum eaves height 3m and maximum ridge height 4m
-
5/2026/1035 Refused
30 Culver Road St Albans Hertfordshire Al1 4Ed
Certificate of Lawfulness (proposed) - Loft conversion with rear dormer and two velux to front