Lawful Development Certificate in Lewisham

Directions, heritage and the Blackheath side of the borough

Lewisham publishes 57 Article 4 directions across 89 areas. That is substantial coverage, so the address check is not a formality. The borough also has 30 conservation areas and 367 listed building entries, and a world heritage site intersects its boundary. In a conservation area: On article 2(3) land (conservation areas etc.): no side extensions, no cladding, no rear extension of more than one storey under Class A.

Areas such as Blackheath and Brockley contain conservation areas, but designation shifts road by road, which is why we check the map instead of the postcode. Where a direction removes a right, a planning application replaces the certificate, and we say so at the outset.

Houses, gardens and the baseline

Around 42.2 per cent of Lewisham households live in a house or bungalow, and 41.9 per cent own their home. Flats cannot use householder rights: Householder permitted development (Sch 2 Part 1) does not apply to flats or buildings containing flats. For the houses, the typical file is a Victorian or interwar terrace or semi with a side return, a rear outrigger and a loft.

Domestic gardens cover 31.1 per cent of the borough's land in the Greater London land-use survey, so outbuildings are a real part of the work. Their total, with every extension, must stay within the coverage rule: Buildings (other than the original house) may not cover more than 50% of the curtilage.

The borough logged 410 certificate applications. Its adopted plan is the Lewisham Local Plan 2020-2040, adopted in 2,025, and its design reference is the Alterations and Extensions SPD. Neither decides a certificate, but the SPD tells us what a fallback application would be measured against.

Side returns deserve a note, because they are a popular way for Lewisham terraces to gain space. A side return is a side extension in law, and the rule is narrow: Side extension: single storey, max 4 m high, max half the width of the original house. Eaves near the boundary are capped too. We test both on the drawing, and where a side return would break them, we price the alternative of a rear-only scheme alongside it.

From first call to decision

We visit, measure the original house and record every later addition. A second technologist checks the sheets against the Order, and then you review them before submission. The set includes location and block plans, floor plans, elevations and a section.

The council's fee is separate from ours: Half the normal planning fee (householder: £274). The statutory period is 8 weeks, and the borough met its deadline for 94.8 per cent of householder cases. We make requested changes without a further fee, and if the certificate is refused we advise whether to redraw or to bring a planning appeal in Lewisham. No decision is promised.

Keep two things with the deeds when the certificate arrives: the decision notice and the approved sheets. A buyer's solicitor will ask for both, and a builder should work from the same set. The survey also carries into building regulations drawings, so there is no second measuring visit, and we flag any party wall notices the work will need on a shared boundary.