Bromley Development Finance: 1 Unit Residential Scheme at 92A High Street Enters the Pipeline

A pending Bromley application at 92A High Street, Orpington would convert offices to one two bedroom flat, and here is how our desk reads the funding.

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A small but instructive conversion scheme has landed on the Bromley register. Application 26/02945/FPA at 92A HIGH STREET, ORPINGTON, BR6 0JY is pending decision, according to the London Borough of Bromley planning register (Idox). The application was received on 23/07/2026, per the same register, so it is early in its determination window and worth watching for anyone tracking small residential supply in the borough.

The application: scheme, units and status

The proposal, as described on the London Borough of Bromley planning register (Idox), is the construction of a single storey rear extension to the ground floor commercial unit, conversion of the first floor and roof space from office (Class E) to residential unit (Class C3) to form 1x two bedroom flat, rear rooflights, an external staircase, a first floor rear roof terrace including privacy screening, elevational and internal alterations, including cycle and refuse storage. The register records 1 unit(s) proposed and the use class as residential. Our own estimate, drawn from the London Borough of Bromley planning register (Idox) entry, puts gross development value at around £330,000.

Where it sits in the Bromley pipeline

Single unit airspace and upper floor conversions above retail parades are a steady feature of the Orpington and wider borough pipeline, and they behave very differently from multi unit sites. The commercial ground floor is retained and extended, so the scheme is a mixed use asset throughout the works rather than a straightforward residential build. That matters for valuation, for security structuring and for the exit. We keep a running view of borough level activity on our Bromley page, and applications of this size are the ones most often underestimated on cost and most often over optimistic on timing.

The finance angle: what the scheme will need

At an estimated GDV of £330,000 from the London Borough of Bromley planning register (Idox) data, this is a light development facility rather than a full ground up loan. Sponsors typically need three things in sequence. First, site or acquisition funding if the freehold is not already held, which is where bridging specialists tend to price fastest on a mixed use asset with an income producing ground floor. Second, a build facility for the rear extension, the external staircase, the roof terrace and the internal conversion works, drawn in stages against surveyor sign off. Specialist commercial lenders are usually more comfortable than high street funders with a live commercial tenancy sitting underneath the works.

Third, and most importantly on a scheme of this size, the exit. A single two bedroom flat can be sold or retained. If it is retained, a development exit or term facility priced on the completed mixed use building is the route, and challenger banks will look at the combined commercial and residential income once the C3 unit is let and the office use has formally gone.

Our read and what sponsors should line up

Our desk would want the appointment, the cost plan and the tenancy position on the ground floor unit ready before approaching funders, because the retained commercial element is the single point most often queried at credit. Note that the application is still pending decision on the London Borough of Bromley planning register (Idox), so any heads of terms should be conditional on consent. We would also encourage sponsors to model a twelve month rather than a nine month exit on a scheme with an external staircase and a terrace, both of which invite conditions. Speak to us early if you want indicative terms on this one.