Structural drawings in Hadley Wood, EN4
Structural drawings in Hadley Wood give the beam sizes, bearings and foundation details that an EN4 extension, loft or reconfigured ground floor needs before a builder can start. DrawingsDirect's structural calculations start from £745, for a single beam or opening.
Fixed fee from £745 · all prices
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The order of work, from calculation to start on site
Structure sits in the middle of the sequence. The layout is fixed first, the calculations follow, and then the beam sizes go into the Building Regulations package and, where a neighbour is affected, into the party wall notice.
Our structural calculations explained guide describes each stage, and the Building Regulations drawings service prepares the package the authority checks.
Notices that depend on the structure
A party structure notice is served at least two months before the proposed work begins (Party Wall etc. Act 1996, section 3(2)(a)). Excavation near a neighbour needs its own notice at least one month before you dig, and it applies when you excavate within three metres of the neighbouring building below its foundations, or within six metres where the excavation would cut a 45-degree line drawn down from the base of the neighbour's foundations (section 6).
The Act is on legislation.gov.uk. Our party wall agreement guide sets out who serves what.
The council made 934 householder decisions over the four quarters 2025 Q3 to 2026 Q2, counting prior approvals, and 83% were granted.
The Building Control clock
On a full plans application the authority must notify its outcome within five weeks of receipt, or a longer period agreed in writing (Building Regulations 2010, regulation 14A(6)).
Structural calculations start from £745. Building Control charges its own fee on top.
What the Enfield figures show
Hadley Wood is in the London Borough of Enfield. The council made 934 householder decisions over the four quarters 2025 Q3 to 2026 Q2, counting prior approvals, and 83% were granted. Excluding prior approvals, 92% were decided within 8 weeks (our analysis of MHCLG planning application statistics, table PS2).
Of 267 householder appeals decided between 2021 and 2026, 40% were allowed (our analysis of the Planning Inspectorate Casework Database, release 2609). It is a record, not a prediction.
The national register lists 24 conservation-area entries for Enfield (our analysis of the MHCLG Planning Data Platform conservation-area dataset, snapshot retrieved 14 Aug 2026). Check the council's conservation area map for your address, because an outward-facing alteration can change the planning route. Our Enfield building regulations page covers the other side of the submission.
Sources
Every figure on this page, where it comes from and a link to the original.
| Figure | Source | Link |
|---|---|---|
| 934 | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 24 | Our analysis of MHCLG Planning Data Platform conservation-area and article-4-direction datasets (bulk snapshot retrieved 14 Aug 2026) | www.planning.data.gov.uk |
| three metres | Party Wall etc. Act 1996 s6(1): excavating within three metres measured horizontally of an adjoining owner's building or structure below its foundations (source wording: three metres) | www.legislation.gov.uk |
| six metres | Party Wall etc. Act 1996 s6(2): excavating within six metres measured horizontally of an adjoining owner's building where it meets a 45-degree plane drawn down from its foundations (source wording: six metres) | www.legislation.gov.uk |
| one month | Party Wall etc. Act 1996 s6(5): notice of the proposed excavation served at least one month before beginning to excavate (source wording: one month) | www.legislation.gov.uk |
| five weeks | Building Regulations 2010 reg 14A(6): authority must notify the outcome of a full plans application within five weeks of receipt, or a longer period agreed in writing (source wording: five weeks) | www.legislation.gov.uk |
| £745 | DrawingsDirect starting fixed fee for structural calculations, from the published price list | drawingsdirect.co.uk |
| two months | Party Wall etc. Act 1996 s3(2)(a): a party structure notice is served at least two months before the proposed work begins (source wording: "at least two months before the date on which the proposed work will begin") | www.legislation.gov.uk |
| 83% | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 92% | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 267 | Our analysis of Planning Inspectorate Casework Database (released 1 Oct 2026 (Casework Database 2609)) | www.gov.uk |
| 40% | Our analysis of Planning Inspectorate Casework Database (released 1 Oct 2026 (Casework Database 2609)) | www.gov.uk |
Questions people ask
Do I need structural drawings for a loft conversion in Hadley Wood?
Does a shallow extension footing need an excavation notice?
Does the borough figure say anything about my own application?
Photographs: Derek Harper (CC BY-SA 2.0).
