Measured Building Surveys · SE23 Forest Hill
SE23 is decided by Lewisham Council. Forest Hill and Honor Oak are hilly, leafy Victorian/Edwardian suburbs with strong loft and rear-extension demand; conservation areas cover the better villa streets near the Horniman and London Road, while the bulk of the terraced and semi stock keeps permitted-development rights.
This page covers one part of the borough. For the full picture — fees, timelines and the council's current position — read measured building surveys in Lewisham.
A measured building survey captures your Forest Hill property exactly — every wall, opening, level and boundary — as the accurate base for design and planning drawings. On SE23's older terraced and villa stock around Forest Hill, Honor Oak, Perry Vale, Horniman, walls are rarely square, so a laser-measured survey prevents costly errors before Lewisham Council ever sees the application.
Leica Disto laser + BLK360 point-cloud scanning, AutoCAD and Revit deliverables, MCIAT chartered.
Across Forest Hill, Honor Oak, Perry Vale, Horniman in SE23, the dominant property is victorian and edwardian terraces and villas across forest hill and honor oak, larger detached houses on the hills, and 1930s semis towards perry vale. That stock shapes what measured building survey looks like here: the right approach for a period terrace differs from a mansion-block flat or a new-build, and Lewisham Council judges each on design quality and neighbour impact. We survey the specific Forest Hill property, confirm the planning route — Permitted Development, a Lawful Development Certificate, or full planning — and draw a council-ready set tailored to the SE23 streetscape.
Housing stock in SE23: Victorian and Edwardian terraces and villas across Forest Hill and Honor Oak, larger detached houses on the hills, and 1930s semis towards Perry Vale.
Within the district: Forest Hill, Honor Oak, Perry Vale, Horniman.
Conservation areas: Forest Hill, Honor Oak, Horniman / London Road. Inside these, most external work needs full planning and a Heritage Statement.
Getting around SE23: Forest Hill and Honor Oak Park (Overground and Southern).
Property values: approx £600k–£1.2m for houses, £375k–£600k for flats (Land Registry, 2024) — a useful gauge of the build value an extension or loft adds in SE23.
Borough character: Generally permissive planning compared to central boroughs; loft conversions and side-return extensions routinely approved under PD.
A chartered technologist attends your Forest Hill property with a Leica Disto laser and BLK360 scanner. Typical 2–3 bed terrace surveyed in 90 minutes.
Drafted in AutoCAD or Revit at 1:50 or 1:100 to ±3mm accuracy. Every room, opening, fitting and service annotated.
All four elevations plus cross-sections — essential for Forest Hill planning applications, party wall awards and structural design.
BLK360 scan delivers a full 3D point cloud — ideal for Forest Hill period properties, listed buildings or complex geometry.
DWG, RVT, PDF and IFC exports — compatible with your architect, structural engineer or contractor.
RICS-compliant accuracy report — ±3mm point-to-point, ±5mm absolute. Sign-off for council, party wall surveyor or insurer.
Single planning or building-regs submission.
Planning + building regs + structural.
Listed, conservation or complex sites.
Most do. The Victorian and Edwardian terraces and semis across Forest Hill and Honor Oak in SE23 generally keep permitted-development rights for single-storey rear extensions and rear dormer lofts, decided by Lewisham Council, provided they're outside the local conservation areas. The hilly plots sometimes raise overlooking and retaining-wall issues we design around. We check your address against Lewisham's conservation layer first.
Parts are. Lewisham designates conservation areas in Forest Hill and Honor Oak, typically covering the grander villa streets near the Horniman Museum and London Road, while most of the terraced and 1930s semi stock sits outside. Inside a conservation area, loft dormers and external alterations need full planning and a Heritage Statement. We map your specific Forest Hill or Honor Oak street before relying on PD.
Forest Hill and Honor Oak SE23 have a lot of larger Victorian and Edwardian semi-detached and detached villas, which often take a hip-to-gable plus rear dormer for a full extra floor, or a substantial rear dormer on terraces. The sloping sites mean we pay attention to ridge heights and neighbour overlooking. We design to the roof type and confirm whether full planning or a Lawful Development Certificate applies.
With Forest Hill property at approx £600k–£1.2m for houses, £375k–£600k for flats (Land Registry, 2024), the professional drawing fee is a small fraction of the value the work adds to SE23's victorian and edwardian terraces and villas across. Lewisham Council charges its own statutory application fee on top (currently £548 for a householder planning application, £610 for a full application). We quote the drawings as one fixed price and the free site survey covers every SE23 address.
For a SE23 project across Forest Hill, Honor Oak, Perry Vale, Horniman, expect roughly 3–4 weeks from instruction to submission: week 1 the measured survey, weeks 2–3 the drawings and your revisions, then validation and the statutory determination by Lewisham Council (8 weeks for a householder application). We carry the Forest Hill application through every officer query to the decision.
Forest Hill (SE23) sits primarily in Lewisham, so applications are decided by Lewisham Council. Conservation areas within SE23 include Forest Hill, Honor Oak, Horniman / London Road, where full planning and a Heritage Statement are required. We confirm the planning route for your exact address before quoting.
Almost always. Any structural work behind measured building survey in Forest Hill — new openings, steel beams, loft floors, foundations — needs Building Regulations approval covering structure (Part A), fire escape (Part B) and insulation (Part L), submitted to Lewisham Council Building Control or an approved inspector. On SE23's typically terraced and semi-detached stock, a Party Wall notice to adjoining neighbours is normally required before the steelwork. We coordinate both as part of the Complete package.
In value terms, yes. With Forest Hill (SE23) property at approx £600k, £1.2m for houses, £375k, £600k for flats (Land Registry, 2024), a well-designed extension or loft typically returns more than it costs in added floor area and sale value. The bigger risk is an unapproved or non-compliant scheme — which is why council-ready drawings and a clean Building Control sign-off matter on SE23 homes.
Householders often approach us after a neighbour used a different council. Our full range is set out for SE3, SE4, SE6, SE12, SE13 and SE26.
Pick a slot that suits you. No obligation and no sales pressure, just straight answers on your planning route.
Every SE23 postcode district we draw in, the stock that dominates it and the authority that validates a measured building survey there. SE23 fees below are the statutory England rates for 2026, not measured building survey estimates.
| Postcode | Area | Dominant stock | What it means for a measured building survey |
|---|---|---|---|
| SE23 | Forest Hill / Honor Oak | Victorian villas, Edwardian terraces | SE23 covers Forest Hill / Honor Oak only; Lewisham Council handles the measured building survey. |
| SE23 | Forest Hill | Victorian villas, Edwardian terraces | No consent is required to survey a SE23 property in Forest Hill. The survey comes first so that whatever Lewisham Council is later asked to decide rests on measured fact rather than an assumption about the existing building. |
| SE23 | Honor Oak | Victorian villas, Edwardian terraces | Honor Oak sits inside SE23. A measured survey needs no permission from anyone; it is the dimensioned record of what is already there, and the base any later SE23 application is drawn on. |
| SE4 | Brockley | Victorian and Edwardian terraces | Adjoining district to SE23. Surveying needs no consent here either — Lewisham has no say in it, and the survey is the same record whichever side of the line the property sits. |
| SE6 | Catford / Bellingham | 1930s semi-detached, post-war flats | Adjoining district to SE23. Surveying needs no consent here either — Lewisham has no say in it, and the survey is the same record whichever side of the line the property sits. |
| SE8 | Deptford | Georgian terraces, post-war estates, new-build | Adjoining district to SE23. Surveying needs no consent here either — Lewisham has no say in it, and the survey is the same record whichever side of the line the property sits. |
| SE12 | Lee / Grove Park | mixed stock | Adjoining district to SE23. Surveying needs no consent here either — Lewisham has no say in it, and the survey is the same record whichever side of the line the property sits. |
Roof pitch, wall build-up and plot depth change every few SE23 streets, and each one changes what a measured building survey can achieve at that address.
SE23 (Forest Hill / Honor Oak) conservation designations: there are 30 across Lewisham Council, Lee Green, Blackheath, Deptford High Street among them. Designation costs a SE23 (Forest Hill / Honor Oak) owner the permitted-development route: a measured building survey then needs a £548 householder application over 8 weeks, in place of the £249 prior approval route that takes 6 weeks. Forest Hill is the SE23 (Forest Hill / Honor Oak) designation that most often changes a measured building survey design.
Article 4 and your SE23 (Forest Hill / Honor Oak) measured building survey: Lewisham Council has made no borough-wide direction, so permitted development for a measured building survey in SE23 (Forest Hill / Honor Oak) generally survives outside SE23 (Forest Hill / Honor Oak) conservation areas and listed curtilages. A Lawful Development Certificate at £274 is how a SE23 owner records that a measured building survey was lawful.
The building fabric around SE23 (Forest Hill / Honor Oak): Victorian and Edwardian terraces across Brockley, Honor Oak, Forest Hill; 1930s semi-detached in Catford and Hither Green; post-war mixed in Deptford. Generally permissive planning compared to central boroughs; loft conversions and side-return extensions routinely approved under PD. A measured building survey in SE23 (Forest Hill / Honor Oak) is scoped against that stock first, because it decides whether the scheme runs as permitted development, a £274 Lawful Development Certificate, or a full £548 application to Lewisham Council.
Sources for this SE23 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.
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Get my free quote →Or contact us about your project firstVictorian and Edwardian terraces and villas across Forest Hill and Honor Oak, larger detached houses on the hills, and 1930s semis towards Perry Vale.
Local values run approx £600,000–£1.2m for houses, £375,000–£600,000 for flats. Source: Land Registry, 2024.
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