Loft Conversion Drawings in Hammersmith and Fulham

It depends on your exact address in Hammersmith and Fulham. Most standard loft conversions qualify as Permitted Development (no planning permission needed) if under 40m³ for terraced or 50m³ for semi-detached, with matching materials and 20cm eaves setback. However Hammersmith and Fulham has Article 4 Directions that may remove these rights — and flats, conservation areas and listed buildings always require full planning. We confirm permitted development eligibility at the free feasibility visit.

Our architectural technology fees for a Hammersmith and Fulham loft conversion start at £1,225 (planning + building regs + structural). Typical construction build-cost in Hammersmith and Fulham is £45,000–£80,000 for a standard dormer and £65,000–£110,000 for a mansard.

Very often yes in Hammersmith and Fulham. Rear mansards are routinely approved by Hammersmith & Fulham Council where the design matches the terrace — including within conservation areas like Hammersmith Grove. A Heritage Statement and sensitive design following the borough's published guidance are essential for conservation area mansards.

2.3m measured from existing ceiling joist to existing ridge is the practical minimum for a standard conversion in Hammersmith and Fulham. Below 2.2m usually requires dropping the ceiling below (reducing rooms on the floor beneath) or redesigning as a mansard.

Most Hammersmith and Fulham loft conversions trigger Party Wall Act notices — legal notices to all adjoining owners. Rear dormers can also prompt right-to-light considerations in dense terraced streets, particularly in Hammersmith Grove. We handle both processes.

Hammersmith and Fulham's victorian and Edwardian terraces — particularly two-storey bay-fronted terraces south of the river in Fulham and Parsons Green stock lends itself to rear dormers (most common), hip-to-gable (semi-detached), and mansard (period terraces and conservation contexts). Velux-only conversions are possible where ridge height allows. We recommend the best structural and planning route at survey.

We cover all Hammersmith and Fulham postcodes — {postcodes} — with surveyors based locally. Survey appointments within 3 working days. Our structural engineer is London-based and attends site when required.

Most Hammersmith and Fulham loft conversions require Party Wall notices to adjoining neighbours — typically for steel beam installation and/or raising the party wall. We can co-ordinate the notice process; our in-house engineer handles the structural element. The Act gives neighbours 14 days to respond.