Planning application
5/2026/0933
72 Crabtree Lane Harpenden Hertfordshire Al5 5Ns
Proposal
Certificate of Lawfulness (proposed) - Demolition of the existing conservatory and the construction of a replacementsingle-storey orangery extension to the rear of the dwellinghouse.Works include associated foundations, external walls, glazed roof lantern
As published by the council, reference 5/2026/0933
Timeline
Dates from the published record
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13 May 2026
Received by St Albans
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14 May 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
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5/2025/2124 Decided
43 Fairmead Avenue Harpenden Hertfordshire Al5 5Ud
Demolition of existing conservatory, erection of a two storey side extension, part single part two storey rear extension, rear dormer and 3no rooflight to the front elevation
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5/2017/2575 Granted
14 Gilpin Green Harpenden Hertfordshire Al5 5Nr
Non Material Amendment - Removal of window from front elevation and centralisation of front door to planning permission 5/2017/1375 dated 30/06/2017 for Single storey front, side and rear extensions, rear patio, concrete paving for additional parking spac
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5/2026/0672 Withdrawn
49 Topstreet Way Harpenden Hertfordshire Al5 5Tx
Demolition of existing and construction of two semi-detached dwellings
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5/2026/1016 Decided
46 Chesterton Avenue Harpenden Hertfordshire Al5 5Su
New porch and conservatory
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5/2026/1324 Refused
31 Highfield Avenue Harpenden Hertfordshire Al5 5Ub
Certificate of Lawfulness (proposed) - Proposed rear single-storey extension, side single-storey extension, removal of rear chimney stack and replacement porch
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5/2026/0893 Decided
94 Topstreet Way Harpenden Hertfordshire Al5 5Ts
Application for amendments to planning approval reference 5/2021/0124 including change from pebbledash to smooth render, removal of rooflights to side extension, repositioning of eaves of side extension to inside of boundary line and changes to internal l
Other lawful development applications
In St Albans
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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
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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
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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
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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
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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