Rear extension drawings in Haringey

Drawing a Haringey rear extension from the survey up

Where a Haringey house has a rear outrigger, whether the new room fills the gap beside the outrigger, extends past it or replaces it changes both the planning route and the structure, so we record the outrigger, the party walls and the drainage on the survey before choosing a shape.

The garden matters too. Domestic gardens make up 26.6 per cent of the land in the borough in the Greater London Authority's land-use data, and your own rear garden is often the most valuable space the house has. We show what remains after the extension, so the council sees a balanced plot.

Where the design needs a steel beam to open up the old back wall, the engineer's figures go onto the same set. Our building regulations drawings then carry foundations, drainage and fire details to the building control submission.

Neighbours are the other half of the brief. A Haringey terrace shares a wall, a drain and often a boundary fence with the house next door, and a new flank wall built on or beside that line can trigger the Party Wall etc. Act. We prepare the plans so the notices match the design, and we flag early where an engineer will need to see the foundations of the neighbouring house.

Permitted development, prior approval or planning in Haringey

Under the national rules a modest single-storey rear extension can be permitted development, and a deeper one can go through prior approval. Neither route is open to a flat or maisonette, a listed house needs listed building consent whatever the size, and Haringey has 25 Article 4 directions that can remove these rights on particular streets.

Prior approval is no formality locally. Haringey granted 13 larger home extension prior approvals and refused 19 in the latest return. We keep the drawings clear on window positions and boundary heights to give that process less to catch on.

If the design goes beyond the limits, or the house sits in a conservation area, it needs a householder application. The council fee is £548, paid to the council, and our fixed fee is separate. Historic England records 289 listed entries in the borough, so we check the list before the design starts.

How Haringey decides householder applications

In its latest published year Haringey decided 689 householder applications and granted 90.3 per cent, with 94.3 per cent decided in time. Those figures cover every type of householder project, not only rear extensions, and say nothing about one particular house.

We use them to set expectations on timing and to show that well-prepared applications are routine here, never to predict an outcome. A council decides each application on its own merits.

Timing is worth planning around. The drawing programme starts with the survey, then a short design round with you, then the submission. Building regulations drawings can follow while the council considers the application, which keeps the builder's start date realistic.

What the drawings include and what they cost

A Haringey rear extension set shows existing and proposed floor plans, elevations and sections, with a location plan and block plan. Our fee is £695 with VAT included, fixed before you commit. A second chartered technologist checks each sheet, and if the council asks for changes we redraw at no charge until approval.

Want the whole picture of the borough first? Start with architectural drawings in Haringey, or read how a rear extension works across London on our rear extension drawings page.

Other extension types and nearby councils

If the plan also fills the side of the house, look at side return extension drawings in Haringey or wraparound extension drawings in Haringey. Going up as well as back? See loft conversion drawings in Haringey.

Over the boundary, compare the approach in Hackney, Enfield and Barnet.