Planning-Preparation Pack
Example extension planning pack
Planning-readiness score
Comparable local outcome estimate
100% approved
Sample of 1 local comparable case. This is not a guarantee of your outcome.
Confidence
Low
Based on only 1 local sample / manual comparable case, so not enough for a strong estimate.
1 Project summary
- Property
- Semi-detached house
- Location
- Havant area, Hampshire
- Proposal
- Single-storey rear extension
- Approx. size
- 4.5m wide × 3.5m deep × 3.0m high
- Intended use
- Open-plan kitchen / dining
- Likely route
- Householder planning application
2 Missing information 3 items
We need these before the pack can be finalised. They are the reason this example is marked human review required.
-
Missing
Boundary distance
Exact distance from the proposed extension to the side and rear boundaries has not been provided.
-
Missing
Proposed rear elevation
A basic planning drawing of the proposed rear elevation is needed to complete the pack.
-
Missing
Drainage note
Confirmation of how surface water and foul drainage will be handled is missing.
3 Main planning risks
- Extension depth close to the boundary may affect a neighbour's light or outlook, so it needs checking against the council's guidance.
- Without a drainage note, the application could be returned with a validation query.
- Only one local comparable was found, so the outcome estimate is uncertain and low-confidence.
4 Highest-impact fixes
Do these first — they move the planning-readiness score the most.
- Provide exact boundary distances and confirm the extension stays within the council's accepted depth and height for a householder application.
- Add the proposed rear elevation to the basic planning drawings.
- Add a short drainage note describing where surface water and foul water will go.
5 Documents & drawings checklist
- Needed Site location plan (red-line)
- Needed Block / site plan
- Needed Existing floor plan
- Needed Proposed floor plan
- Missing Existing & proposed elevations (basic planning drawings)
- Missing Drainage note
- Included Planning / supporting statement draft
- Included Final submission checklist
👤 Human review required
A member of our team reviews every pack before it's sent to you. This example is marked human review required because key measurements are missing and only one local comparable was found — too small a sample for a confident estimate. ELI helps prepare the pack under human review; it is an early-stage, AGI-directed prototype and is not a substitute for advice from a qualified professional.
Important — what this is and isn't
- This is an illustrative example of an ELI Planning pack. Figures are based on the limited information provided and a small number of local comparables.
- The Planning-readiness score and Comparable local outcome estimate are planning-preparation aids. They are not a guarantee of any planning decision — your local planning authority makes the final decision.
- Any drawings we prepare are basic planning drawings to accompany a householder planning application. They are not detailed technical or engineering drawings.
- This pack is a preparation service and is not a substitute for advice from a qualified professional such as a planning consultant, architect or solicitor.
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