Bromley Development Finance: 2 Unit Residential Scheme at 25A Hayes Lane Enters the Pipeline

A new small residential scheme has joined the borough's pipeline. Application 26/01312/FPA, covering 25A Hayes Lane, Beckenham, BR3 6QS, is currently pending decision, according to the London Borough of Bromley planning register (Idox). The register records the application as received on 27/04/2026, so the scheme is now well into its determination period as of this month.

The proposal, as described on the London Borough of Bromley planning register (Idox), is the subdivision of the existing site to form 2 separate dwellings, including partial demolition of the existing residential property and construction of an additional two storey semi-detached self-build/custom build dwelling, plus a single storey in-fill extension to the existing dwelling and demolition of the existing single storey garage in the rear garden. In total, 2 units are proposed, and the use class is residential, per the same register entry.

On value, our desk puts the estimated gross development value at £1,220,000. That is a Construction Capital estimate derived from the scheme details on the London Borough of Bromley planning register (Idox), not a figure published by the applicant, and sponsors should test it against their own comparables on Hayes Lane and the surrounding BR3 streets.

The finance angle

Two-unit subdivision schemes of this kind typically draw on three funding routes. First, ground-up or heavy refurbishment development finance for the new semi-detached dwelling, usually from specialist commercial lenders or challenger banks, structured around a day-one land advance and staged drawdowns against certified build costs. Second, because one plot is flagged as self-build/custom build, self-build products from challenger banks may suit an owner-occupier sponsor on that unit, often at keener pricing than a pure developer facility. Third, the demolition and in-fill extension works to the retained dwelling can sit within a refurbishment bridge from bridging specialists if the sponsor wants to keep the two workstreams on separate facilities.

The exit matters as much as the build facility. On a circa £1.22m two-unit scheme, a sale of both completed houses is the cleanest repayment route, but a development exit bridge or term refinance onto a residential or investment product gives the sponsor time if the sales market is slow at practical completion. We track schemes like this across the borough on our Bromley development finance page, where the wider local pipeline gives useful context on how many comparable units are coming forward.

Our read

For a scheme at this scale, lenders will want a clear build contract, a QS-checked cost plan, evidence of the split between the new-build plot and the retained-dwelling works, and a realistic sales appraisal. With the application still pending decision, now is the sensible moment to line up indicative terms: sponsors who approach specialist commercial lenders with a decision notice and a funding package already shaped tend to reach start on site weeks faster. Our desk is happy to run appraisal numbers for anyone tracking this application or preparing a similar subdivision scheme in Beckenham.