Planning application
89 Sebastian Avenue Shenfield Essex CM15 8PP
Works: Loft or dormer
Decided. The decision notice on the council portal carries the outcome in full, including any conditions.
Proposal
Application for a Lawful Development Certificate for a Proposed Use or Development for a hip to gable roof with rear dormer, together with rooflights on the front roofslope.
As published by the council, reference 26/00321/S192
Application record
- Reference
- 26/00321/S192
- Type
- Certificate of Lawfulness (proposed)
- Status
- Decided
- Decision
- Lawful
- Received
- 19 Mar 2026
- Validated
- 19 Mar 2026
- Decided
- 1 Jun 2026
- Ward
- Shenfield
- Decision by
- Delegated Decision COND S191/S192
- Postcode
- CM15 8PP
Timeline
Dates from the published record
-
19 Mar 2026
Received by Brentwood
-
1 Jun 2026
Decision issued: Lawful
-
9 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Agent on file, an architecture practice registered in Benfleet
72 applications on PlanIndex · across 6 councils · 82% granted
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
Plans, drawings, consultee responses and the officer's report
12 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsAfter 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
-
89 Sebastian Avenue Shenfield Essex CM15 8PP
Single storey rear extension and part conversion of garage to habitable accommodation.
Granted Householder Extension 12 docsSmall domestic -
87 Sebastian Avenue Shenfield Essex CM15 8PP
Demolish garage, raise ridge and add part single part two storey, part first floor side and rear extensions, add rear dormer, rooflights, solar panels and front entrance, provision of side garage/store, alterations to fenestration. Construct raised patio, pergola and outbuilding within rear garden (revised application to 25/00982/HHA)
Granted Householder Extension Loft or dormer +2 22 docsSmall domestic -
85 Sebastian Avenue Shenfield Brentwood Essex CM15 8PP
Variation of condition 2 of application 22/00180/FUL (Demolition of existing dwelling, construction of new detached dwelling) for the change of external materials on the western elevation bay from brick, render and vertical tiles, to brick.
Granted Full applications New dwelling Demolition 9 docsDomestic -
89 Sebastian Avenue Shenfield Essex CM15 8PP
89% historically approved · decision due ~13 Oct
Extend hipped roof to gable and add rear dormer, construct first floor side and single storey rear extensions
Awaiting decision Extension Loft or dormer 12 docsSmall domestic -
90 Sebastian Avenue Shenfield Essex CM15 8PP
89% historically approved · decision due ~27 Aug
Remove rear pitched roof, remove hip and form gable. Proposed flat roof dormer and roof windows to front elevation.
Decided Loft or dormer Windows or glazing -
83 Sebastian Avenue Shenfield Brentwood Essex CM15 8PP
Demolition of existing garage, increase in height of ridge to create new floor, construction of two story front and side extension. New open porch with pitched roof. Fenestration and roof alterations.
Refused Householder Extension Roofing +2 7 docsSmall domestic
Other lawful development applications
In Brentwood
-
26/00414/S192 Decided
262 Ongar Road Brentwood Essex CM15 9EA
Application for a Certificate of Lawfulness for proposed use or development for single storey side and rear extensions.
-
26/00390/S192 Decided
271 Rayleigh Road Hutton Essex CM13 1PL
Application for a Lawful Development Certificate for a proposed use or development for demolition of chimney. Proposed hip to gable with rear dormer x2 rooflights and Juliette balcony.
-
26/00126/S192 Granted
189 Rayleigh Road Hutton Essex CM13 1LZ
Application for a Lawful Development Certificate for a proposed use or development for: Proposed single storey outbuilding at rear of garden
-
26/00450/S192 Decided
90 Sebastian Avenue Shenfield Essex CM15 8PP
Application for a Lawful Development Certificate for a proposed use or development to reconfigure existing roof pitch to a proposed flat roof rear dormer with juliette balcony and 3 x roof lights to front elevation
-
26/00393/S192 Decided
76 Hunter Avenue Shenfield Essex CM15 8PG
Application for a Certificate of Lawfulness for proposed use or development to remove chimney and add a hip to gable extension with one roof light to front and add a rear dormer