House Extension Drawings in Hornsey |

An Article 4 Direction applies across Haringey, so check it before assuming Hornsey permitted development survives. Officers see Hornsey as Edwardian terraces, Victorian villas — design that ignores it struggles. Hornsey sits close enough to Highgate Village that designation should be checked at the outset, not after design. Whether a Hornsey plot sits inside the boundary changes the whole route.

We check Article 4 directions against the Hornsey address first — it changes what is worth drawing. A N8 survey answers most of it — where the edwardian terraces allows the rear wall to go. The borough policy layer over every N8 address is set out on Haringey planning. The Hornsey survey then carries into architectural drawings in Hornsey if the project runs on to construction.

Validation alone costs London Borough of Haringey one to two weeks even when the Hornsey pack is complete, and that queue — not the determination — is where most N8 delay starts. No Hornsey design work starts until the measured survey is complete.

Statutory periods: 8 weeks from validation for a householder application, 13 weeks for a major scheme, 6 weeks for prior approval with a 21 days neighbour consultation, and 5 weeks for a full plans building control submission. A party structure notice requires one month notice and two months where excavation is involved.

An officer report on the N8 case is written after the consultation closes. Drawings for Hornsey are supplied print-ready and in the format London Borough of Haringey accepts.

We design Hornsey schemes to answer the amenity objection before it is written. Existing structure in the edwardian terraces is identified at survey, not guessed later.

Party wall procedure runs alongside the Hornsey application, not after it. Once consent is granted, planning permission follows for the N8 property.

Hornsey is characterised by edwardian terraces, victorian villas, concentrated across N8 in the Crouch End / Hornsey area. How the edwardian terraces in Hornsey was built decides what can be opened up and where the load has to go. For Hornsey owners this matters because the side-return infill is the classic move on these Victorian terraces — 3 m of permitted development depth plus the width of the original side passage. It is why the Hornsey existing set is measured, not traced. Because the Hornsey streetscape near Hornsey High Street is consistent, departures in ridge height read immediately in an officer report.

Subterranean work in Hornsey has no dedicated borough policy behind it; the N8 water table and the party walls are the real constraints. Where the project also touches building regulations drawings for N8 properties or loft conversion drawings, the same measured survey of the Hornsey property carries across — you pay for the survey once, not per application.

What the Hornsey drawing pack contains

The Hornsey package covers every sheet London Borough of Haringey asks for.

• existing and proposed ground-floor plans for the Hornsey property
• proposed rear elevation
• long section through the extension
• site and block plans
• party wall position drawing

Streets and landmarks we survey around Hornsey

• Fortis Green — closet wings that change how a rear extension meets the Fortis Green back addition.
• Wood Green — closet wings that change how a rear extension meets the Wood Green back addition.
• Finsbury Park — shared flank walls, so Finsbury Park party structure notices go out before work starts.
• Stroud Green — frontages visible from the highway, so Highgate Village materials detail governs the Stroud Green elevation.
• Alexandra Park — roof profiles that set the ridge datum Haringey Council measures a Alexandra Park dormer against.
• Muswell Hill — frontages visible from the highway, so Highgate Village materials detail governs the Muswell Hill elevation.
• Hornsey High Street — Haringey Council weighs N8 sightlines to it in the character assessment.
• Highgate Wood Secondary School — the surrounding edwardian terraces takes its scale from it.
• Greig City Academy — proposals in its setting are drawn with the Hornsey context elevation.

Getting to a Hornsey survey

Surveyors travel to N8 addresses from the studio; the nearest stations are Hornsey, Finsbury Park station, Turnpike Lane, Harringay. Appointments are booked in Hornsey on weekdays and Saturdays, and the measured survey of a standard edwardian terraces takes two to three hours.

Where Hornsey sits

on Ordnance Survey grid reference TQ305894, with the River Moselle shaping drainage and flood-risk questions on lower-lying N8 plots. The N8 block plan is set out from that grid square. Source.

Practical detail for a Hornsey submission: the nearest stations are Hornsey and Finsbury Park station and Turnpike Lane and Harringay; the Hornsey post town is LONDON; dialling code 020. Site plans are drawn to the address as Haringey Council holds it.

Hornsey postcode coverage

Surveys run across N8 (Crouch End / Hornsey), shared with Crouch End, Harringay throughout Haringey.

Streets and stations in Hornsey

Streets we survey in Hornsey include Fortis Green, Wood Green, Finsbury Park, Stroud Green, Alexandra Park and Muswell Hill. most Hornsey sites are within walking distance of Hornsey or Finsbury Park station or Turnpike Lane.

Areas we cover around Hornsey

The surrounding patch — Oakwood (N14), Walthamstow (E17), Leyton (E10), Leytonstone (E11), Chingford (E4), Highams Park (E4) — is drawn by the same team, though each street answers to its own designation.

Price differences between Hornsey projects come from the fabric — the edwardian terraces, level changes, and any Highgate Village heritage requirement.

Statutory application fees are set by regulation, not by the council: £548 householder, £610 for a new dwelling, £274 for a lawful development certificate, £249 for prior approval.

Those statutory fees go to London Borough of Haringey on submission. London planning approval-rate dataset · Haringey planning · house extension drawings across London · house extension drawings in Oakwood.

The person drawing your Hornsey scheme holds MCIAT charter and carries the technical responsibility for it. If your Hornsey site is tight — Hornsey High Street in the setting, a Highgate Village designation, a shared flank wall — we test it with Haringey Council first rather than submit and hope.

Drawings are produced by chartered members of the Chartered Institute of Architectural Technologists (MCIAT), the professional body for technical design and building-regulations competence. First-time approval across our London caseload is 98%. Statutory fees shown are those in force in England in 2026 under the Town and Country Planning (Fees for Applications) Regulations. Confirm your local authority at gov.uk and submission requirements on the Planning Portal. Studio: 71–75 Shelton Street, London WC2H 9JQ.

Give us the N8 postcode and we will tell you which route applies. This Hornsey page was reviewed in August 2026.