Existing floor plans, elevations and sections for any Lewisham address, measured to 3mm and drawn in AutoCAD or Revit. Laser distance measurement throughout, BLK360 point cloud where the building is old or awkward, and an CIAT Affiliate technologist on site rather than a subcontractor.
The dimensions the council checks against. Lewisham approved 86.3% of 2,037 householder decisions and settled 95.3% inside eight weeks, so the case officer is working quickly from what you submit. Its Datahub set records 5,065 extension applications at 61% approved.
| Measure | Lewisham | Outcome |
|---|---|---|
| Householder decisions | 2,037 | 86.3% approved |
| Decided inside eight weeks | 95.3% | — |
| Extension applications in the Datahub | 5,065 | 61% approved |
| Lawful development certificates issued | 1,221 | — |
| Conservation areas | 30 | 705 hectares |
| Measured survey, floor plans from | £245 | our fixed fee |
Sources: rows one, two and four from MHCLG District Planning Application Statistics (PS1 and PS2), twelve quarters to March 2026. Row three from the Planning London Datahub, retrieved 15 August 2026, phrase-matched and comparable within Lewisham only. Row five from planning.data.gov.uk, retrieved 1 September 2026. Row six is our own published fixed fee. A lawful development certificate application is decided on measured fact alone, which is why a survey matters more on that route than on any other.
In Lewisham — Victorian and Edwardian terraces across Brockley for the most part — a measured building survey package is the full measured-survey-to-submission drawing set London Borough of Lewisham needs in order to determine an application: existing and proposed plans, elevations and sections at 1:100 and 1:50, a location and site plan, and the supporting statements the case officer asks for.
Prepared and reviewed by the architectural technologist team at Architectural Drawings London — CIAT Affiliate, professional indemnity insured.Last reviewed 2026-08-03.


Measured surveys across Lewisham — floor plans, elevations and sections to ±3mm accuracy. Leica Disto laser + BLK360 point-cloud scanning, AutoCAD and Revit deliverables, CIAT Affiliate.
Housing stock in Lewisham: Victorian and Edwardian terraces across Brockley, Honor Oak, Forest Hill; 1930s semi-detached in Catford and Hither Green; post-war mixed in Deptford.
Character: Generally permissive planning compared to central boroughs; loft conversions and side-return extensions routinely approved under PD.
An architectural technologist carries out the visit himself, with a Leica Disto for the linework and a BLK360 where the building warrants a scan. A two or three bed Lewisham terrace is measured inside 90 minutes; a maisonette conversion with two front doors takes longer, because every shared wall has to be picked up from both sides.
Plans come out at 1:50 for the house itself and 1:100 where a sheet has to hold the whole plot, drawn in AutoCAD or Revit and dimensioned to a tolerance of 3mm. Wall thicknesses, window reveals, floor levels, stack and boiler positions all get recorded, because the next person to open the file is usually an engineer who cannot come back and check.
Four elevations and at least one cross-section come as standard. Lewisham compares existing and proposed elevations at matching scales, a party wall award needs the flank drawn, and the section is what settles head heights before anyone designs a dormer into a roof that will not take one.
Point-cloud scanning earns its place on the older half of this borough. On the VOA council tax stock table at 31 March 2025, 27.7% of Lewisham's 133,880 homes were built before 1900 — bay fronts out of square, settled floors, party walls that lean. Where the property is a listed building, the scan doubles as the record a conservation officer will ask to see.
Files leave in DWG, RVT, PDF and IFC on the day they are finished. A structural engineer works from the DWG, a builder prices off the PDF, and the IFC opens in whatever model your architect already has running.
Each set closes with a written accuracy statement: 3mm between any two measured points, and 5mm taken end to end over the whole envelope. That is the tolerance a party wall surveyor needs before writing a schedule of condition, and it is what Lewisham Council expects when your existing and proposed drawings are set against each other.

Single planning or regs submission.
Planning + building regs + structural.
Listed, conservation, complex sites.
Move the controls for an indicative figure. It anchors your budget — it is not a quote. Every project is priced after a site survey.
Build costs are separate and quoted by your contractor. See our published fees.
A survey is not validated by anybody — it is the drawing everything else is built on — but the authority that will eventually read it decides how much of it has to be right. The table below gives each Lewisham postcode district, the stock that dominates it, and the council that determines an application from that address, which along the SE4, SE23 and SE3 edges is not always Lewisham. Any fees quoted are the statutory England application rates for 2026, not survey prices.
| Postcode | Area | Dominant stock | What it means for a measured building survey |
|---|---|---|---|
| SE14 | New Cross | Victorian and Edwardian terraces across Brockley | New Cross is inside SE14. Nothing determines a survey; it is the base the later SE14 drawings are built on, and its accuracy is what decides whether they survive scrutiny. |
| SE23 | Forest Hill / Honor Oak | Victorian villas, Edwardian terraces | SE23 covers Forest Hill / Honor Oak only; Lewisham Council handles the measured building survey. |
| SE26 | Sydenham | Victorian villas, Edwardian terraces | Sydenham's SE26 is split between Lewisham and Bromley along street boundaries, and we establish which of the two decides your application before drawing work begins. |
| SE3 | Blackheath / Kidbrooke | Georgian villas, Victorian terraces | SE3 covers Blackheath and Kidbrooke, and the borough line runs through the middle of it: a survey drawn in one street is validated by Greenwich and one street over by Lewisham. We check the address on each council's policies map before quoting. |
| SE4 | Brockley | Victorian and Edwardian terraces | There is no decision-maker at all. The work is measurement and the test is accuracy. Brockley's SE4 semi-detached villas are wide, tall and built in pairs, and a century and a half of movement means the two halves of a pair are rarely level with each other at the eaves. |
| SE6 | Catford / Bellingham | 1930s semi-detached, post-war flats | SE6 covers Catford / Bellingham only; Lewisham Council handles the measured building survey. |
| SE8 | Deptford | Georgian terraces, post-war estates, new-build | SE8 covers Deptford only; Lewisham Council handles the measured building survey. |
| SE12 | Lee / Grove Park | Victorian and Edwardian terraces across Brockley | Lee and Grove Park share SE12 between Lewisham and Bromley. The two councils publish different householder guidance, so which one decides comes from the address itself, never from an assumption about the postcode. |
Just over a quarter of Lewisham — 27.7% of 133,880 homes — predates 1900 (VOA council tax stock by build period at 31 March 2025, retrieved 1 September 2026), and Victorian buildings are where assumed dimensions go wrong. Solid nine-inch walls are not 100mm plus a cavity. Back additions were rebuilt, raised and re-roofed over a century and rarely match the drawings anyone holds. Floor levels step between the main house and the return. The neighbourhoods below are grouped by which of those problems the survey has to resolve before a scheme can be drawn against them.
The number that makes the survey worth buying here: Lewisham refused 135 of the 305 larger rear extensions notified to it under the prior approval procedure in the twelve quarters to March 2026 — 44.3%, the third highest refusal share of the twenty-seven boroughs the national return supports a rate for, against 24.9% across London (MHCLG planning statistics, retrieved 1 September 2026). The prior approval test is almost entirely dimensional: depth from the original rear wall, height at the eaves, height overall, and where the original wall actually was on a house that has already been extended once. Those are survey questions, not design questions, and a scheme measured from an estate agent's floor plan is the usual way of getting one of them wrong.
The contrast with full applications: on everything decided the ordinary way, Lewisham is one of the more accommodating London boroughs. It granted 86.3% of 2,037 householder applications, decided 95.3% of them inside eight weeks, and granted 94 of 98 listed building consents to alter or extend — 95.9%, third highest of the boroughs whose caseload supports a rate. So a refused notification is rarely the end of a project here. It usually means the scheme belongs in a £548 householder application rather than a £249 notification, and a survey accurate enough to prove the dimensions is what lets you make that choice deliberately rather than after a refusal.
Where designation changes the brief: the national register lists 30 Lewisham conservation areas covering about 705 hectares (planning.data.gov.uk, retrieved 1 September 2026) — Blackheath, Brockley, Deptford High Street, Forest Hill and Hither Green among them. Inside one, the drawing set grows: a streetscene elevation showing the neighbours either side, and enough detail of window reveals, string courses and brick coursing for a heritage statement to describe what is being kept. That is a survey scope decision, made before the site visit rather than after. Outside the designations Lewisham has no borough-wide Article 4 direction, and 1,221 lawful development certificates were recorded over the same period — a count of applications, since the national return holds no granted-or-refused split for certificates in any English authority.
Sources for this Lewisham measured building survey page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.
The questions Lewisham homeowners actually put to us before booking, answered without the hedging.
Start a free quote →Fees follow the building rather than the clock. A two-bedroom terrace is the baseline at £245. A three-bedroom semi steps up from there, a four-bedroom detached property further again, and a flat conversion is priced on how many units are being drawn; anything listed, split-level or above four storeys is quoted once we have seen it. The figure covers plans, elevations and sections, there is no hourly billing, and no second charge if something was missed on the first visit.
Allow 60 to 120 minutes at the property, then 5 working days for the CAD drawings. Where a Lewisham deadline is already fixed — a lease event, a booked build start — a 48 hour turnaround is available at a premium. It is worth taking in those cases and not otherwise.
3mm between any two points and 5mm absolute, measured with a Leica Disto X3 and, where the geometry justifies it, a BLK360 scanner. The tolerance is printed on the drawing, so Lewisham Council planning, Building Control, your engineer and any party wall surveyor can all see what they are relying on instead of asking.
Yes — Lewisham's victorian and Edwardian terraces across Brockley, Honor Oak, Forest Hill period stock is our core work. We survey listed buildings, conservation area properties and complex geometries using BLK360 point-cloud scanning. The 3D scan captures every architectural detail for heritage statements and planning applications.
AutoCAD .dwg, Revit .rvt, flat PDF and IFC for anyone working on a different platform, plus the raw point cloud if the building was scanned. Every plan, elevation and section arrives annotated with room names, dimensions and levels, ready for a Lewisham Council submission or for your engineer, with nothing left to redraw.
Yes — flats, maisonettes, HMOs and conversions across all Lewisham postcodes (SE3, SE4, SE6, SE8, SE12, SE13, SE14, SE23, SE26). We handle communal areas, staircases and party walls between dwellings — essential for flat conversion planning applications or lease drawings.
Yes, and Lewisham's withdrawal figures are the interesting reason why. The council logged 158 withdrawn applications against 4,408 received over the returns for 2023-24 through 2025-26 — 3.6%, the sixth-lowest share of the 33 boroughs, where the capital's own figure is 12,060 out of 175,757. Contains public sector information licensed under the Open Government Licence v3.0. Schemes here are mostly settled before submission rather than pulled halfway through, and an accurate record of the existing building is what makes that possible: validation officers return submissions whose existing plans disagree with the proposed ones, and the same measured base carries straight into the building regulations package.
We cover all Lewisham postcodes — SE3, SE4, SE6, SE8, SE12, SE13, SE14, SE23, SE26 — and adjacent boroughs. Survey appointments within 3 working days, no travel charges within Greater London.

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