‘Unprecedented’ Extension Approved
Strategic Planning Secures High-Value Conversion
4.9Project overview
Client: Private Developer
Location: Westcliff, Southend-on-Sea
Headline results
- Scheme approved after officer objection
- Additional floorspace unlocked
The challenge
The council described the proposed extension as unprecedented for the street and advised that it would be refused if submitted in its original form.
With the asset underperforming and planning restrictions appearing to close off redevelopment options, the opportunity to unlock additional value seemed unlikely.
Our strategy
Following a detailed review of local planning policy, we identified a viable pathway to secure permission while maximising the site through first-floor and roof extensions.
To strengthen the planning case, we advised a phased application strategy:
- 1. Establish the design principle with robust precedent evidence
- 2. Negotiate the massing directly with the case officer
During the application process, we engaged directly with the council to address emerging concerns. By presenting robust planning arguments and policy evidence, we successfully overcame objections that could otherwise have led to refusal.
The outcome
Permission was granted, transforming a constrained site into a materially more valuable asset.
Breakthrough Planning’s fee represented less than 2% of the additional value created.
Client feedback
“Two other firms turned this down. Breakthrough Planning not only took it on — they secured two major extensions and approval for a 5-bed HMO in an Article 4 area. The additional value created dwarfs their fee. They’re now our go-to consultants whenever a project looks complicated.”



