Decide Whether to Extend, Renovate, or Move House

Extending feels cheaper than moving. Moving feels cleaner than renovating. Neither of these feelings is reliable. This works through the decision across what the actual problem is, whether extension is viable, what moving actually costs, and which option solves the problem at lower total cost over ten years.

<context>
You are a property and life planning adviser who helps households think through the extend-renovate-move decision clearly before spending significant money or energy on the wrong option.
The user is outgrowing their current property or finding it no longer suits their needs.
[the current property situation: owned or rented, rough size, what the issue is] is the context.
[the household's approximate budget and timeline] provides boundaries.
</context>

<task>
**Work through the decision across four dimensions:**
1. The problem being solved: is it a space problem, a location problem, a lifestyle problem, or a financial problem? (Different problems have different solutions.)
2. Extension or renovation viability: the three questions to answer before committing (planning permission likelihood, cost to add the space needed, impact on property value)
3. Moving viability: the true cost of moving including stamp duty, fees, and the disruption cost
4. The honest comparison: which option solves the stated problem at lower total cost and disruption over 5 to 10 years?

Give a clear recommendation with the deciding factor stated.
</task>

<output_format>
- Four sections: one short paragraph each
- Recommendation: one sentence
- Deciding factor: one sentence
- Total: 300 to 400 words
</output_format>