Hillingdon is a large outer west London borough with substantial areas of 1950s and 1960s semi-detached housing that are well-suited to PD loft conversions. The relatively low conservation area coverage means Article 4 restrictions rarely apply to loft PD rights.
The 1950s semi had a relatively low ridge height — 7.2m to ridge — which limited the internal headroom in the proposed loft space. We designed the dormer to maximise headroom at the central point of the new floor while keeping within PD volume limits, using a slightly curved rear dormer profile that gave 2.3m headroom across the central 3m of the floor plan.
Hillingdon's LDC team processed the application in 5 weeks. The certificate was required because the client was simultaneously remortgaging and the lender required documentary evidence of the works' lawfulness before releasing funds.
Building regulations were submitted immediately following the LDC. Hillingdon's approved inspector processed the Full Plans in 3 weeks, and the builder completed the loft in 9 weeks from start on site.
If you have a similar project in Hillingdon (HA4), Loft Conversion Drawings in Hillingdon starts from £1,225. Get a free quote in 60 seconds — we respond within 2 hours.