Rear extension drawings in Croydon

Croydon's prior approval record for longer extensions

A single-storey rear extension can reach 3 m (attached) / 4 m (detached) beyond the original rear wall, single storey as permitted development, and 6 m (attached) / 8 m (detached), single storey, height max 4 m; not on article 2(3) land or an SSSI through prior approval, where neighbours are told and can object. In the latest twelve months of national statistics Croydon granted 17 larger home extension prior approvals and refused 34.

A refused prior approval is not the end, because a householder planning application can follow with a modified design. But it costs weeks, and we prefer to test the neighbour impact on drawings first, so that the route you choose is the one that has a real chance.

Gardens, green belt and heritage in Croydon

Domestic gardens cover 32.8 per cent of the borough's land, and 60.2 per cent of households live in a house or bungalow. That makes a rear extension a natural project here, and plenty of owners have the space for one.

Green belt covers 25 per cent of the borough, where national policy resists additions that are disproportionate to the original building. There are 19 conservation areas, and Historic England lists 180 entries. Croydon also has an Article 4 direction on small houses in multiple occupation, which does not affect a rear extension for a family home but is worth knowing if you plan to let rooms.

How Croydon decides householder applications

Croydon decided 786 householder applications in its latest published year, granting 86.6 per cent. It decided 94.4 per cent within eight weeks or an agreed extension. These figures describe the borough, not your house.

A quick decision helps only if the application is complete. We check each sheet against the council's validation list before submission.

Boundaries, eaves and how much of the plot you can cover

Even with generous gardens, two national limits catch Croydon owners. Near the boundary, Eaves no higher than 3 m where within 2 m of the curtilage boundary. And on total cover, Buildings (other than the original house) may not cover more than 50% of the curtilage. Sheds, garages and earlier additions all count toward the second figure.

We measure all of it on the survey, so the design starts from what you actually have. A neighbour's consent is not needed for a compliant extension, but telling them early costs nothing and tends to prevent objections later.

On cost, Residential extensions and annexes can claim exemption (claim before commencement). Croydon's own levy document is the London Borough of Croydon Community Infrastructure Levy Charging Schedule April 2013, and we mention any liability we find in the handover notes so there are no surprises after a decision.

Rear extension drawings for Croydon: the set and the fee

The set includes existing and proposed plans, sections and elevations, plus location and block plans, and starts at £695 with VAT included, fixed before you commit. A second chartered technologist checks every sheet and we redraw at no charge until approval. The council's householder fee is £548 and is paid to Croydon separately.

More from Croydon and the neighbouring councils

Want to add a room in the roof at the same time? See loft conversion drawings in Croydon. If the side is also open, wraparound extension drawings in Croydon combine both. For the borough overall, read architectural drawings in Croydon, or compare Sutton and Merton.