Site Clearance and Demolition for London Residential Projects 2025: What's Involved and Costs

**Prior Approval for demolition in London — when it is required**:

Demolition of a building in England is a form of 'permitted development' controlled by Part 31 of Schedule 2 to the Town and Country Planning (General Permitted Development) (England) Order 2015. For demolition of a residential building (a house or dwelling), Prior Approval from the local planning authority is required before demolition begins.

*The Prior Approval requirement for demolition of a house in London*:

• •**Prior Approval under Part 11 of the GPDO**: demolition of a dwelling or part of a dwelling requires Prior Approval from the local planning authority. The Prior Approval application must include:
• - A written description of the proposed demolition
• - A statement confirming that the necessary notice has been given to occupiers
• - A method statement describing how the demolition will be carried out
• - A site reinstatement plan describing what will happen to the site after demolition (to prevent derelict sites)

• •**Fee**: Prior Approval for demolition is not a planning application — it is a notification. There is no fee for a Prior Approval demolition notification.

• •**The authority's response time**: the local authority must respond within 28 days (prior to any demolition) with either approval, conditional approval, or a requirement for a full planning application.

*When Prior Approval is NOT required*:

• •Demolition of a building with a **floor area of 50m² or less** does not require Prior Approval (small outbuildings; garages; garden structures)
• •Internal demolition (removing internal walls; floors; structure within the envelope of the existing building) does not require Prior Approval
• •**Permitted Development (no Prior Approval) for internal structural demolition**: removing internal load-bearing walls as part of a refurbishment project does not trigger the demolition Prior Approval requirement — it is building work, not demolition. It does require Building Regulations approval (structural engineer's design; Building Control inspection)

**The CDM 2015 requirements for demolition**:

The Construction (Design and Management) Regulations 2015 (CDM 2015) apply to demolition work. Key CDM 2015 requirements for demolition on a London residential project:

• •**The client has duties**: the building owner (the client in CDM terms) must notify the Health and Safety Executive (HSE) before demolition work begins if the project is expected to last more than 30 working days with more than 20 workers simultaneously, or more than 500 person-days. For most residential demolitions in London (typically completed in 1–2 weeks with a small crew), this threshold is not reached — but the pre-construction information must still be compiled and provided to contractors.
• •**Pre-construction information**: the client must provide contractors with all available information about the site that could affect health and safety — including the asbestos survey; utility drawings; structural condition surveys; and any other known hazards (lead paint; contaminated ground; underground tanks)
• •**The principal contractor** is responsible for producing a Construction Phase Plan before works start

**Party Wall Act and demolition**:

• Demolition of a building that shares a party wall with a neighbouring property requires:
• •**Section 2 notice** under the Party Wall Act 1996 if the demolition involves works to the party wall or party structure — for example, removing a chimney breast that abuts the party wall; or demolishing a rear outrigger to the party wall line
• •**Prior notification to neighbours** (separately from the Party Wall Act): it is good practice (and some local authorities require it as a condition of Prior Approval) to notify adjacent neighbours before demolition begins, describing the programme and the dust/noise management measures

**Highway and utility considerations for demolition in London**:

• •**Section 169 scaffolding licence**: if demolition scaffold or screening is required over the public highway, a Section 169 licence from the London Borough is required (as for construction scaffold — see scaffold guide)
• •**Utility diversions**: before demolition, all services connected to the building must either be capped off at the main (gas; electricity; water; telecom) or diverted. Utility companies typically require 6–10 weeks' notice for service disconnection or diversion — this must be programmed well in advance of the demolition start date
• •**Temporary works for demolition**: where a building being partially demolished is attached to a neighbouring structure (party wall), temporary propping or shoring may be required to support the remaining party wall structure during and after demolition. A structural engineer must design the temporary works

**Why asbestos matters for London residential construction**:

Asbestos-containing materials (ACMs) are present in virtually all London residential properties built before 2000. The types of asbestos used in UK construction were broadly:

• •**Chrysotile (white asbestos)**: used extensively in reinforced cement products (Artex textured coatings; roof tiles; wall cladding; gutters and rainwater goods; floor tiles; pipe lagging); fire protection boards; and composite materials. The most common form found in London Victorian and Edwardian properties.
• •**Amosite (brown asbestos)**: used in sprayed insulation; asbestos insulation board (AIB); ceiling tiles; thermal insulation on pipes and boilers. More likely in commercial or industrial buildings; present in some residential flat conversions in older blocks.
• •**Crocidolite (blue asbestos)**: the most hazardous form; used mainly in industrial applications; occasionally found in older domestic properties in pipe lagging and sprayed fireproofing.

*Why it matters for London residential projects specifically*:

• •**Artex**: the textured ceiling coating used from approximately 1960 to the late 1990s, found in the vast majority of London properties built or refurbished in that period. Artex typically contains up to 3–5% chrysotile (white asbestos) in products manufactured before 1984. Post-1984 Artex may be asbestos-free — but cannot be assumed to be without testing.
• •**Floor tiles**: thermoplastic or vinyl floor tiles (the 9×9 inch and 12×12 inch tiles common in London post-war houses) often contain asbestos as a binder in tiles manufactured before the mid-1980s.
• •**Roof materials**: asbestos cement roof tiles; asbestos cement gutters and downpipes; corrugated asbestos cement roofing on outbuildings.
• •**Pipe lagging and boiler insulation**: the insulation on older pipework and boilers may contain asbestos.

**The asbestos survey requirement — Regulation 4 of the Control of Asbestos Regulations 2012**:

The Control of Asbestos Regulations 2012 (CAR 2012) impose the asbestos survey requirement on the duty holder (the owner or manager of the building). The survey requirement before demolition or major refurbishment is:

*Type 2 Asbestos Survey (Management Survey)*: A Type 2 Management Survey identifies and assesses the condition of likely ACMs in a building that will remain in use. The surveyor inspects accessible areas; samples suspected ACMs; and produces a report giving the location, quantity, condition, and risk assessment for each ACM. Cost: typically £200–£600 for a 3-bedroom London house, depending on size and scope.

*Type 3 Asbestos Survey (Demolition/Refurbishment Survey)*: A Type 3 Refurbishment/Demolition Survey is required before any major refurbishment work (where building fabric will be disturbed) or full demolition. The Type 3 survey is more intrusive than a Type 2 — the surveyor accesses all areas of the building, including roof spaces; wall cavities; below floor boards; chimney breasts; and service ducts. The survey must identify all ACMs that could be disturbed by the refurbishment or demolition work. Cost: typically £400–£1,200 for a 3-bedroom London house.

*Who can carry out an asbestos survey?*: the survey must be carried out by a competent asbestos surveyor. For domestic properties, the surveyor should hold BOHS (British Occupational Hygiene Society) P402 qualification (Building Surveying and Bulk Sampling for Asbestos). The UKAS-accredited asbestos analysis laboratory that analyses samples must be UKAS (United Kingdom Accreditation Service) accredited for the purpose.

**Asbestos removal — licensed vs. non-licensed work**:

Not all asbestos removal requires a licensed contractor. CAR 2012 divides asbestos removal into three categories:

• *1. Licensed asbestos removal work (requires an HSE licence)*:
• •Removal of Asbestos Insulation Board (AIB) — the boards used as fire protection around structural steelwork and in service ducts
• •Removal of sprayed asbestos insulation
• •Removal of thermal pipe lagging and boiler insulation containing asbestos
• •Any work on asbestos cement that is in poor condition (friable; cracked; damaged — releasing fibres)
• •Full demolition of a building known to contain significant quantities of any ACM above the 'sporadic and low intensity' threshold

• *2. Notifiable non-licensed work (NNLW)*:
• •Removal of asbestos cement products in good condition (e.g., removal of a sound asbestos cement garage roof; removal of intact asbestos cement gutters)
• •Requires notification to the HSE (through the online NNLW notification system) at least 3 working days before work starts
• •Can be carried out by a non-licensed contractor who has been trained in the specific non-licensed removal techniques

• *3. Non-notifiable non-licensed work*:
• •Very small quantities; brief and incidental exposure; ACMs in good condition with very low fibre release potential
• •Does not require notification or a licensed contractor
• •Example: breaking out a single asbestos cement floor tile in good condition; drilling a single hole through Artex ceiling in good condition (in a well-ventilated area, with wet methods to suppress dust)

*Practical asbestos positions for common London residential project types*:

**Loft conversion in a pre-2000 London house**: the loft may contain asbestos cement water tanks (cold water storage tanks); asbestos pipe lagging on cold water pipes; and the underside of the roof boarding may have been sprayed with asbestos. A Type 3 survey of the loft is required before conversion work starts. Asbestos cement tank removal: NNLW (notify HSE; non-licensed contractor who is trained). Pipe lagging removal: licensed work if in poor condition.

**Kitchen extension with demolition of rear outrigger**: rear outriggers in London Victorian houses often contain asbestos cement roof tiles; asbestos pipe lagging on old boiler and hot water pipes. A Type 3 survey of the outrigger is required. Roof tile removal: NNLW. Lagging removal: licensed work.

**Full house refurbishment**: Type 3 survey of the whole house required. Artex removal (if in poor condition or full skim required): licensed work or NNLW depending on condition. Floor tile removal: NNLW. AIB board removal (if present): licensed work.

**2025 costs for asbestos removal in London**:

| Scope | Type | Approximate 2025 cost | |---|---|---| | Artex ceiling skim (single room; 15–20m²) | NNLW (if in good condition) | £300–£600 | | Artex ceiling removal to plasterboard (single room) | Licensed (if in poor condition) | £600–£1,400 | | Asbestos cement garage roof removal (small garage; 15m²) | NNLW | £500–£900 | | Asbestos cement cold water tank removal | NNLW | £200–£500 | | Asbestos pipe lagging removal (boiler and pipes; kitchen) | Licensed | £800–£2,500 | | Full AIB board removal (rare in domestic; more common in converted flats) | Licensed | £2,000–£8,000+ | | Type 2 asbestos survey (management survey; 3-bed house) | Survey | £200–£600 | | Type 3 asbestos survey (refurbishment/demolition; 3-bed house) | Survey | £400–£1,200 |

**What a site clearance package for a London construction project typically includes**:

• A site clearance at the start of a refurbishment or extension project in London typically covers:
• •Removal of all existing furniture and possessions left in the property (where the client has not stripped the property before the contractor arrives)
• •Internal demolition: removal of internal partitions; removal of existing ceiling plasterboard and/or lath and plaster ceilings; removal of existing floor finishes (carpet; tiles; floorboards where the floor is being replaced); removal of existing kitchen and bathroom fittings and sanitaryware
• •Structural demolition: removal of load-bearing walls or chimney breasts as designed by the structural engineer, including propping and temporary works
• •External demolition: demolition of existing outrigger; garage; rear addition — as required for the new extension build
• •Strip-out of M&E services: removal of existing pipework; radiators; old boiler and cylinder; old electrical wiring and consumer unit
• •Waste removal: loading all arisings into skips or tipper trucks and transporting to a licensed waste transfer station

**Skip hire in London 2025 — types, costs, and highway licensing**:

*Skip sizes for residential London construction*:

| Skip size | Approximate volume | Approximate hire cost per week (London 2025; includes delivery, collection, disposal) | |---|---|---| | Mini skip (2 yard) | 2.1m³ | £120–£180 | | Midi skip (4 yard) | 4.2m³ | £150–£220 | | Builder's skip (6 yard) | 6.3m³ | £170–£260 | | Maxi skip (8 yard) | 8.5m³ | £200–£320 | | Large skip (10 yard) | 10.6m³ | £250–£380 | | Roll-on roll-off (20 yard) | 21m³ | £380–£600 |

For most London residential refurbishments and extensions, 6-yard or 8-yard builder's skips are the most commonly used. A full house refurbishment to first-fix stage typically generates 3–6 skip loads.

*Highway permits for skips on the public road*:

• Where a skip is placed on the public highway (the road or footway) rather than within the property boundary, a skip permit is required from the London Borough Council. The skip hire company usually arranges the permit on behalf of the client. Skip permits are typically issued for 14-day periods:
• •Skip permit fee (London Borough): typically £30–£80 for a 14-day permit
• •The skip must be lit with flashing yellow lights at night (supplied by the skip hire company)
• •The skip must be positioned in accordance with the highway authority's requirements (not blocking bus stops; not within 15m of a junction; not obstructing sight lines)

*Alternative to skip hire — grab lorry and bulk bags*:

• In London where narrow roads or restricted access prevent a skip being positioned safely on the highway, alternatives include:
• •**Grab lorry hire**: a hydraulic grab lorry collects loose materials from the site and loads them directly into the lorry body — no skip needed on the highway. Suitable for soil; hardcore; rubble; mixed demolition waste. Grab lorry cost: typically £250–£450 per load (typically 8–12 tonnes per load for a grab lorry)
• •**1-tonne builders' bags** (bulk bags): for small volumes of sorted material, bulk bags can be placed within the property boundary and collected by a grab lorry or specialist bulk bag collection service

**Waste classification and consignment notes**:

All construction waste generated on a London residential site must be handled in compliance with the Environmental Protection Act 1990 and the Waste (England and Wales) Regulations 2011:

• •The contractor (or the waste carrier) must hold a **Waste Carrier Licence** from the Environment Agency (registered on the Environment Agency's online register). Always ask to see a waste carrier's licence number before allowing them to remove waste from your site — unlicensed waste carriers ('fly-tippers') may dump the waste illegally, and the site owner (building owner) can be held partially responsible for fly-tipped waste from their site
• •**Mixed construction waste** (plasterboard; timber; brick; concrete): classified as non-hazardous waste; can be taken to a licensed waste transfer station without a special consignment note
• •**Asbestos waste** (any ACMs removed from site): classified as hazardous waste. Must be double-bagged in red-labelled polythene bags (licensed contractors provide this); transported in a vehicle with a hazardous waste consignment note; and taken to a hazardous waste licensed disposal site. The consignment note must be kept for 3 years
• •**Contaminated soil** (ground that may be contaminated by petroleum; industrial use; historic fill): classified as hazardous waste where contamination is above threshold concentrations. Requires a site investigation and soil testing before removal if contamination is suspected

**2025 costs for common site clearance and demolition packages in London residential construction**:

| Scope | Approximate 2025 cost range | |---|---| | Full internal strip-out, 3-bed Victorian terrace (floors; ceilings; partitions; M&E; no structural works) | £6,000–£14,000 | | Demolition of single-storey rear outrigger (30–40m²; no asbestos) | £3,000–£6,500 | | Demolition of single-storey rear outrigger with asbestos cement roof (NNLW removal before demolition) | £4,500–£9,000 | | Load-bearing wall removal (single wall; temporary props; structural works) | £1,800–£5,500 | | Chimney breast removal (ground and first floor; structural engineer's design; temporary props) | £2,500–£5,000 | | Demolition of double garage (60m²; concrete block; asbestos cement roof) | £4,500–£10,000 | | Full house demolition to foundations (3-bed Victorian terrace; complete including licensed asbestos removal) | £25,000–£60,000+ | | Skip hire (6-yard; 2 weeks including permit) | £300–£500 | | Grab lorry hire (per load; 8–12 tonnes) | £250–£450 |

*Note*: All costs above are for London; prices in other UK regions are typically 15–25% lower. Costs assume standard soil conditions (no contaminated ground). Asbestos removal costs are separate from demolition labour where ACMs are identified by the Type 3 survey.