House Extension Drawings in Hornchurch |

No Article 4 Direction covers Havering, which keeps the Hornchurch permitted-development route open on unlisted houses. Hornchurch is 1930s semi-detached — a house extension drawings submission has to answer that context rather than a generic London template. Hornchurch sits close enough to Rainham Village that designation should be checked at the outset, not after design. A Hornchurch address on the edge of the boundary is checked, not guessed.

Knowing how Article 4 directions apply to your RM11 address is the first thing we establish. What can be built on a Hornchurch plot is decided by the 1930s semi-detached — the original rear wall position first, the Hornchurch Tube roofline second. The borough policy layer over every RM11, RM12 address is set out on Havering planning. The Hornchurch survey then carries into architectural drawings in Hornchurch if the project runs on to construction.

Validation at London Borough of Havering is the first delay a Hornchurch applicant meets. We start with a full laser survey of the Hornchurch address so the existing set is dimensionally right before anything proposed is drawn.

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 RM11 case is written after the consultation closes. Drawings for Hornchurch are supplied print-ready and in the format London Borough of Havering accepts.

Objection volume on Hornchurch cases is public — we read it before advising. Drainage runs and manhole positions on the RM11 plot are picked up on the day.

On Hornchurch terraces the flank wall is usually shared, so the party wall notice should go out well before work starts. Once consent is granted, planning permission follows for the RM11 property.

Hornchurch is characterised by 1930s semi-detached, concentrated across RM11, RM12 in the Hornchurch / Emerson Park area. What the 1930s semi-detached in Hornchurch allows is a construction question first and a planning question second, and the survey answers it. Applied to RM11 property: 1930s semis here have the deepest rear gardens in the area, which is why the 6 m and 8 m larger-home prior approval route gets used so often. On a Hornchurch terrace it governs the rear opening width. Massing on a Hornchurch scheme is argued against the Hornchurch Tube street rhythm.

Digging under a Hornchurch house is a structural question before a planning one. Where the project also touches building regulations drawings for RM11 properties or loft conversion drawings, the same measured survey of the Hornchurch property carries across — you pay for the survey once, not per application.

What the Hornchurch drawing pack contains

Each Hornchurch instruction produces this set of drawings.

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

Streets and landmarks we survey around Hornchurch

• Hornchurch Country Park — closet wings that change how a rear extension meets the Hornchurch Country Park back addition.
• Ardleigh Green — gardens deep enough for the 8 weeks householder route on a Ardleigh Green plot.
• Elm Park — roof profiles that set the ridge datum Havering Council measures a Elm Park dormer against.
• Gidea Park — frontages visible from the highway, so Rainham Village materials detail governs the Gidea Park elevation.
• Emerson Park — front-to-back level changes that drive the Emerson Park section drawings.
• Southend Arterial Road — roof profiles that set the ridge datum Havering Council measures a Southend Arterial Road dormer against.
• Hardley Green — roof profiles that set the ridge datum Havering Council measures a Hardley Green dormer against.
• Harrow Lodge Park — shared flank walls, so Harrow Lodge Park party structure notices go out before work starts.
• Hornchurch Tube — proposals in its setting are drawn with the Hornchurch context elevation.
• Roman Catholic Church — the surrounding 1930s semi-detached takes its scale from it.
• Havering Sixth Form College — schemes visible from it get closer scrutiny in Havering.
• Smithfield Market — proposals within its setting are drawn with the context elevation included.
• Upminster Bridge — height and massing nearby are argued against this frontage.

Getting to a Hornchurch survey

Surveyors travel to RM11 addresses from the studio; the nearest stations are Harold Wood, Hornchurch, Emerson Park, Elm Park. Appointments are booked in Hornchurch on weekdays and Saturdays, and the measured survey of a standard 1930s semi-detached takes two to three hours.

Where Hornchurch sits

Hornchurch lies 15.2 miles (24.5 km) east-northeast of Charing Cross, on Ordnance Survey grid reference TQ535865. A RM11 submission is checked against exactly that location before Havering Council will register it. Source.

Practical detail for a Hornchurch submission: surveyors travel in through Harold Wood and Hornchurch and Emerson Park and Elm Park; the postal town here is HORNCHURCH; dialling code 01708. Site plans are drawn to the address as Havering Council holds it.

Hornchurch postcode coverage

RM11 (Hornchurch / Emerson Park), which Hornchurch holds on its own; RM12 (Hornchurch / Elm Park), shared with Elm Park — all within our Hornchurch survey radius.

Streets and stations in Hornchurch

The Hornchurch streets on our books include Hornchurch Country Park, Ardleigh Green, Elm Park, Gidea Park, Emerson Park, Southend Arterial Road, Hardley Green and Harrow Lodge Park. most Hornchurch sites are within walking distance of Harold Wood or Hornchurch or Emerson Park.

Areas we cover around Hornchurch

Hornchurch aside, we also cover Rainham (RM13), Harold Hill (RM3), Collier Row (RM5), Elm Park (RM12), Barking (IG11), Dagenham (RM8, RM9, RM10) and the Barking and Dagenham boundary.

The figure is agreed before the survey and does not move. What moves the number on a Hornchurch job is the 1930s semi-detached itself — party walls, level changes, and whether Rainham Village pulls a heritage statement into scope.

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.

None of the London Borough of Havering statutory fee reaches us on a Hornchurch job. London planning approval-rate dataset · Havering planning · the London house extension drawings pillar page · house extension drawings in Rainham.

An MCIAT chartered technologist owns the Hornchurch project from survey to decision. Marginal RM11, RM12 sites get checked with Havering Council first; a refusal costs far more than the advice fee.

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 RM11 postcode and we will tell you which route applies. This Hornchurch page was reviewed in August 2026.