Southampton's pipeline narrows to small conversions while resale volumes stay deep

The Q2 planning register is unusually thin and conversion-led. Six pending applications carry 27 units and £4.4 million of estimated GDV between them, with nothing yet approved in the period. Three are Class E-to-residential changes of use sitting in the central postcodes: 72-74 Anglesea Road SO15 5QS (six flats, ref 26/00490/PA56) and 150-152 High Street SO14 2BT (seven flats including a studio, ref 26/00462/PA56) are both prior approval submissions tracking the national permitted development route, and 28-30 Chapel Road SO14 5GL (ref 26/00488/FUL) seeks a change of use from office to three short-let aparthotel units rather than C3 housing. A discharge of conditions application at 52-54 Waterloo Road SO15 3BE (ref 26/00487/DIS) carries seven flats from a 2024 consent and is the cleanest near-term completion candidate in the pipeline. A roof conversion at 5-7 Morris Road SO15 2BS (ref 26/00461/FUL) adds six flats from existing dwellings. The composition matters for finance structuring: five of the six schemes are sub-ten-unit, all are residential conversions or alterations rather than ground-up, and none carries the consented unit count or GDV scale that would attract syndicated senior debt. This is a small-ticket bridge-and-development market in Q2.

Recent transactions set tight per-unit anchors for sponsors underwriting conversion exits. Freehold semis on Waterloo Road traded between £300,000 (89 Waterloo Road, SO15 3BS) and £310,000 (91 Waterloo Road, same postcode) on 26 March 2026, which is the directly relevant comparable set for the 52-54 Waterloo Road consented scheme one street along. A detached freehold at 3 Heath Road SO19 2QF cleared at £315,000 on 24 March, anchoring the eastern Southampton family house band. The leasehold flat tape is wide: a flat at 78 Portswood Road SO17 2FB (Flat 4, Lowmans House) sold at £127,500 while Flat 6 in the same building cleared at £210,000, showing how unit size and floor level swing per-flat exits inside a single conversion block. The lower entry points are stark, with Flat 105, 25 Latimer Street SO14 3EP clearing at £65,000 and Flat 10, Simco Court (81 Northlands Road, SO15 2DQ) at £64,000. Sponsors should not project these basement comparables forward for newly converted product, but they do illustrate the floor risk if quality or specification slips.

For Southampton schemes we are quoting senior development debt at 9-12% with 65-70% LTGDV typical for experienced sponsors on small conversion and PBSA-adjacent product, tightening toward 60% LTGDV where the sponsor track record is short or the exit comparables are thin. Bridging for auction purchases or pre-planning site control starts from 0.65% per month with 70-75% LTV achievable against existing values where a clear residential exit is in place. The most fundable archetypes in the current pipeline are sub-ten-unit Class E conversions in the central SO14 and SO15 postcodes with a £150,000 to £180,000 per-flat exit assumption, and small PBSA or co-living plays north of the city centre toward Portswood and Highfield. The aparthotel route on Chapel Road is harder to finance against C3 lender appetite and typically needs a serviced-apartment specialist or a commercial-investment structure. Mid-ticket sites of 20-50 units are conspicuously absent from this quarter's tape, which suggests landowners are holding through the price softening rather than bringing schemes forward, and sponsors should expect to source off-market rather than from the open consented pipeline.

We expect the second half of 2026 to remain dominated by small conversion product until the larger consented sites currently sitting outside the live register come back to the determination queue. The 2.2% year-on-year price softening is not severe but it removes the exit tailwind that some appraisals were leaning on in 2024, and ICR stress testing on refinance exits should be built around 9-10% senior rates and a £158,000 flat exit assumption rather than the £250,000 city-wide median. Sponsors with funded PBSA experience and university-corridor sites should find the deepest lender appetite. First-time developers will get a friendlier reception on five-to-ten-unit Class E conversions inside SO14, SO15 and SO19 than on anything requiring full planning determination from scratch.