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Property Intelligence Report
What's inside
A guide to where each section lives. Use it to jump straight to the parts that matter to your decision.
| At a Glance | Traffic-light dashboard, headline numbers, executive summary, bottom-line verdict |
| Valuation & Price History | Estimated value, confidence range, £/sqft comparison, property and area transactions |
| Energy & Property Details | EPC band, annual energy cost, improvement recommendations, construction context |
| Leasehold Analysis | Lease years remaining, extension cost, marriage-value risk band |
| Sold Prices & Comparables | Full Land Registry history for the postcode, ranked comparable sales |
| Planning & Development | Recent applications within 500m, conservation area, listed buildings |
| Environment & Flood Risk | River/surface/reservoir flood risk and any active warnings |
| Neighbourhood | Crime, schools, demographics, deprivation |
| Sunlight & Aspect | Noon sun direction, daylight hours, sun-path dial |
| Transport & Connectivity | Nearest stations, broadband speeds, mobile coverage by network |
| Overall Verdict | Final view, "what to do next" action checklist |
| Methodology & Glossary | Where each data point comes from, refresh cadence, plain-English definitions |
At a Glance
Key Risks
- Leasehold, 92 years remaining (extension £18-38k in next decade)
- Grade II listed building, all external alterations need consent
- Central London prime capital growth has been weak (6.8% over 5 years)
- Crime volume is high in absolute terms, mostly retail theft on Baker Street
Key Positives
- PTAL 6, five Underground lines + National Rail within 6 minutes
- EPC C already at future regulatory minimum
- 11 strong comparable sales in the same building over 18 months
- Outstanding-rated state secondary school within 650m
- Block sits on a stable corporate freehold (NGL004812), not absentee private
A two-bedroom, two-bathroom leasehold flat in Chiltern Court, the Grade II listed 1929 mansion block above Baker Street tube. 78 sqm, 92 years remaining on the lease, EPC C, PTAL 6 (the highest possible accessibility score). The lease length is comfortable for now, the EPC is already at the regulatory benchmark, and the location is one of the best-connected residential addresses in central London. Pricing at £895,000 is about 4% below the local average per square foot, which is reasonable for a mid-floor flat without a balcony.
A genuinely excellent location with a high-quality building shell, priced appropriately given the floor position and lack of balcony. Three practical considerations for a buyer: (1) factor in £20,000-£30,000 for a lease extension in the next 5-10 years, (2) understand the listed building consent process before planning any external work, (3) accept that capital growth in central London prime has been muted (6.8% over five years) and the investment case here is income + amenity, not appreciation. For an owner-occupier who values transport and central location this is a strong buy.
Valuation & Price History
Source: HM Land Registry · PropertyData market index- £1,065/sqft vs £1,110/sqft local average, 4% below
- 11 comparable sales in the building over 18 months
- Block-level sale prices: £875k, £910k, £880k in last 12 months
Valuation range
Where the point estimate sits within the confidence range. Wider ranges signal less certainty.
£895,000 implies £1,065 per square foot, against a local sold-price average of £1,110. The 4% discount looks reasonable for this floor and aspect. The three most recent sales in the same building landed at £875,000, £910,000 and £880,000, giving a tight comparable cluster. The estimated range of £855,000 to £940,000 reflects 11 comparable sales, which is a strong evidence base. There is no AVM discrepancy warning, the asking price tracks the comp set.
Price per Sqft Comparison
Sales history for this property
Recorded sales of this exact address on HM Land Registry.
| Date | Price paid |
|---|---|
| 18 Apr 2007 | £425,000 |
| 9 Nov 2015 | £760,000 |
Comparable sales in the area
Sales of similar property types in postcode NW1 5SA, filtered to remove outliers.
| Date | Price | Type |
|---|---|---|
| 22 Aug 2024 | £875,000 | Flat in same block |
| 15 Jan 2025 | £910,000 | Flat in same block |
| 4 Sept 2025 | £880,000 | Flat in same block |
Stamp Duty Land Tax (estimated on £895,000)
Calculated for the property's current estimated value. Confirm with your solicitor closer to completion as rates and reliefs change.
| Buyer scenario | SDLT payable | Effective rate |
|---|---|---|
| Standard mover (single residential property) | £34,750 | 3.88% |
| Additional property (BTL or 2nd home, +5% surcharge) | £79,500 | 8.88% |
| First-time buyer relief | Not eligible — relief is only available for properties up to £625k. | |
Energy Performance & Property Details
Source: EPC Register (opendatacommunities.org)EPC C with an efficiency score of 73 is already at the level the government has signalled as the future minimum for rental properties. Annual running costs of £1,180 are below average for a 78 sqm flat, reflecting both the modest size and the existing heating setup. The recommended improvements are minor: secondary glazing, low-energy lighting, smarter heating controls. Total ~£1,400-£2,300 to potentially move to B. Note that any external alterations (windows, external plant) will need listed building consent given the building's Grade II status.
Recommended Improvements
| Improvement | Est. Cost | Est. Saving |
|---|---|---|
| Secondary glazing (kitchen + bathroom) | £900-£1,400 | £60/yr |
| Low-energy lighting throughout | £80-£200 | £40/yr |
| Heating controls upgrade (TRVs + smart thermostat) | £400-£700 | £90/yr |
Property Details
| Property Type | Flat |
| Tenure | Leasehold |
| Bedrooms | 2 |
| Bathrooms | 2 |
| Floor Area | 78 m² (840 sqft) |
| Construction Period | Purpose-built mansion block on the corner of Baker Street and Marylebone Road (1929) |
| Council Tax | F (£1,893/yr) |
| Rebuild Cost (Insurance) | £218,000 |
Title & Ownership
| Tenure | Leasehold |
| Primary Title Number | NGL487211 |
| Lease Remaining | 92 years |
NGL487211
| Estate interest | Estate in land |
| Ownership type | Private individual |
| Plot size | 0.02 acres (81 m²) |
| Parent freehold | NGL004812 |
NGL004812
| Estate interest | Estate in land |
| Ownership type | Corporate |
| Plot size | 0.60 acres (2428 m²) |
| Attached leases | 4 leasehold titles registered against this freehold |
Title metadata sourced from HM Land Registry via PropertyData. To obtain the official Title Register document (showing the registered proprietor's name, charges, and restrictions), visit gov.uk — the official copy costs £3.
Leasehold Analysis
92 years remaining is a comfortable position. It sits well above the 80-year marriage-value threshold and the 70-year mainstream-lender threshold. Extension is sensible in the medium term to protect long-term liquidity, but it is not urgent. Indicative extension premium is £18,000 to £38,000 depending on which valuer's relativity table is used. The freehold title (NGL004812) is held by a corporate entity, registered office in NW1 (see the Freeholder Profile section), which means a future lease extension claim will be handled by a managing agent rather than a private freeholder.
Lease Position
Estimated Lease Extension Cost
| Scenario | Estimated Cost |
|---|---|
| Best Case (Negotiated) | £18,000 |
| Mid Estimate | £26,000 |
| Worst Case | £38,000 |
Value Impact
| Current Value (with short lease) | £895,000 |
| Freehold Equivalent Value | £952,000 |
| Short Lease Discount | 6% (£57,000) |
Mortgage Lender Assessment
Service Charge Benchmark
North-West London (Marylebone/St John's Wood high; outer NW lower). Bundled regional dataset, intended as a sanity-check vs the seller's quoted service charge. Confirm the actual schedule with the LPE1 form.
| Local median annual | £3,800 |
| Typical range | £1,900 to £7,500 |
| Subject property | £4,100 (+8% vs median) |
A common gotcha is the rolling 10-year major works programme, ask the seller for the most recent Section 20 consultation notices.
Freeholder Profile
| Title proprietor type | Corporate entity |
| Companies registered in NW1 | 4,218 active companies |
| Likely property-related by name | 1,124 (26.6%) |
| Declare real-estate activity (SIC 68xxx) | 887 |
| Registered office overseas | 64 (1.5%) |
Likely freeholders / property managers nearby
Companies with a property-related name and a registered office in NW1. Useful as a starting point if the freeholder named in your lease isn't familiar — many leasehold blocks in the same postcode share the same management entities.
| Company | Reg. number |
|---|---|
| Chiltern Court (Freehold) Limited | 06182447 |
| Baker Street Estates Limited | 04127893 |
| Marylebone Mansion Block Holdings Limited | 08214562 |
| NW1 Residential Management Limited | 09317284 |
Questions to ask your conveyancer
- Who is the named freeholder on the title register, and is the company active at Companies House?
- Are there outstanding charges (mortgages) registered against the freeholder?
- What is the ground rent and how does it escalate? Look for doubling clauses pre-2017 and the Jan 2026 £250 cap.
- Has the freeholder been involved in any First-tier Tribunal disputes over service charges?
- If the freeholder is a Right to Manage company (RTM) or Resident Management Company (RMC), who are the directors and PSCs?
Planning & Development
Source: PropertyData planning · Historic England listed buildingsThe building is Grade II listed and falls within the Dorset Square Conservation Area. Practical effect: internal alterations are fine, external changes (windows, doors, balconies, plant) need listed building consent and conservation officer sign-off. Recent applications on the block show a pragmatic council approach, three of the last four were approved. The pending heat-pump application at Flat 9 is worth watching, an approval would set a useful precedent for any future heating upgrade.
Recent Planning Applications — Development (within 500m)
4 substantive applications · 3 approved · 1 pending
| Reference | Description | Status | Distance |
|---|---|---|---|
| 25/02145/LBC | Listed building consent for replacement of kitchen units, no structural alterati… | Approved | N/A |
| 25/01678/FUL | External plant equipment (air-source heat pump) to flat roof | Pending | N/A |
| 24/04211/FUL | Demolition and replacement of basement-level retail unit with restaurant | Approved | N/A |
| 24/03987/ADV | Replacement of illuminated fascia signage, mansion block ground floor | Approved | 56327m |
Nearby Listed Buildings
| Name | Grade | Distance |
|---|---|---|
| Chiltern Court (subject building) | II | 0m |
| Sherlock Holmes Statue | II | 110m |
| Madame Tussauds (Marylebone Road frontage) | II | 280m |
| Marylebone Station | II | 420m |
Environment & Flood Risk
Source: Environment Agency · PropertyData environmentalRadon Risk
UKHSA national radon dataset, postcode-area summary band. The Action Level is 200 Bq/m³.
North-West London, Band 1 of 5. Radon levels in this postcode area are very low. The chance of a property exceeding the Action Level (200 Bq/m³) is under 1%.
Local authority radon team: Local borough council. Contact for area-specific advice.
Ground Stability & Subsidence
Regional model based on the BGS GeoSure six-hazard schema. Shrink-swell is the mortgage-relevant one for older properties on clay substrates.
North-West London, London Clay belt. Significant: shrink-swell clay.
| Hazard | Level | What it means here |
|---|---|---|
| Shrink-swell clay | Significant | Clay-rich substrate. Expansion in winter and shrinkage in summer can cause subsidence and heave, particularly to older properties without modern foundations. Mortgage lenders may flag this in desk reviews. |
| Landslide | Low | Topography is broadly flat or gently rolling. Landslide risk is minimal. |
| Soluble rocks (karst) | Low | Substrate is not significantly soluble. Sinkhole / solution risk is negligible. |
| Compressible ground | Moderate | Some alluvial or made-ground exposure. Older properties may show differential settlement; check for evidence in the structural survey. |
| Collapsible deposits | Low | Substrate is not significantly collapsible. |
| Running sand | Low | Running sand risk is minimal in this area. |
Regional indicator only. For a per-property assessment ask a chartered surveyor to commission a Homecheck or equivalent ground-stability report from BGS GeoSure.
Japanese Knotweed
GBNNSS sighting density, regional model. Indicative counts in the 50m / 100m / 200m mortgage-relevant buffers.
Sparse knotweed activity recorded in North-West London. A small number of historical sightings within 200m. Mortgage-relevant if visible on the plot, factor in a knotweed-specific check during the survey.
Absence from the dataset is NOT proof of absence on site. Sightings are voluntarily reported and under-report by a large factor. A physical site walk during the viewing is the only reliable check.
Air Quality
DEFRA AURN annual mean concentrations, regional model. WHO 2021 guidelines: NO2 10 µg/m³, PM2.5 5 µg/m³. UK statutory limits: NO2 40 µg/m³, PM2.5 10 µg/m³ (EIP 2028 target).
North-West London. Very Poor. Annual NO2 30 µg/m³ and PM2.5 11 µg/m³, breaching at least one UK statutory limit. Inner-city pollution is the dominant local environmental factor.
Nearest DEFRA AURN station: London Camden Kerbside. For live readings see uk-air.defra.gov.uk.
Road & Rail Noise
DEFRA Noise Directive strategic maps. Lnight thresholds: 40 dB WHO ideal, 55 dB sleep-disturbance documented, 60 dB significant disturbance.
WCML out of Euston runs approximately 500 m from properties in this outcode. 55-60 dB Lnight — moderate sleep disturbance documented for sensitive sleepers. Triple glazing on the corridor-facing elevations is recommended.
| Source | Type | Approx distance | Lnight band |
|---|---|---|---|
| WCML out of Euston | Mainline rail | 500 m | 55-60 dB |
Worst-case Lnight exceeds the WHO sleep-disturbance threshold. Acoustic glazing on the corridor-facing elevations significantly reduces indoor impact.
Flood risk is very low across all categories. The property sits on elevated ground above the natural water table for central London, with no surface-water risk on the long-term map. No reservoir risk, no active EA warnings. The block's age (1929) is well within standard insurer risk profiles for subsidence given the London clay context.
Neighbourhood
Source: Police UK · Ofsted · ONS Census 2021Crime Breakdown (Oct 2025 - Mar 2026)
Nearby State-Funded Schools
| School | Type | Ofsted | Distance |
|---|---|---|---|
| St Marylebone CofE School | Secondary | Outstanding | 650.00 mi |
| Hampden Gurney CofE Primary | Primary | Outstanding | 720.00 mi |
| Portman House Trust School | Primary | Good | 850.00 mi |
Demographics & Area Profile
| Population (postcode district) | 9,800 |
| Average Household Income | £78,500 |
| Average Age | 38 |
| Employment Rate | 76.0% |
| Area Classification | Urban Cosmopolitan, Wealthy Central |
Crime levels are higher than the City of Westminster authority average, but the volume is dominated by theft-from-the-person and shoplifting, which is unsurprising given the foot-traffic on Baker Street and Oxford Street. Burglary and residential break-ins are low. Trend is flat. Demographics skew working-age professional with above-average household incomes. Schools provision is unusually strong for central London, with Outstanding-rated state secondary at St Marylebone within 650m.
Sunlight & Aspect
Source: NOAA solar position algorithmSun path today
Estimated aspect is south-west, meaning afternoon and evening sun in the main living spaces. UK daylight ranges from 7.8 hours mid-winter to 16.7 hours at summer solstice. For a mid-floor flat in a mansion block this aspect is favourable, expect direct sun into the lounge from around 12:30 to sunset for most of the year.
Transport & Connectivity
Source: Ordnance Survey · Ofcom mobile/broadbandNearest Stations
| Station | Type | Distance | Walking |
|---|---|---|---|
| Baker Street | Underground (Bakerloo/Circle/Hammersmith & City/Jubilee/Metropolitan) | 0.03 mi | 1 min |
| Marylebone | National Rail + Underground (Bakerloo) | 0.25 mi | 6 min |
| Regent's Park | Underground (Bakerloo) | 0.37 mi | 8 min |
Broadband
| Average Download | 312 Mbps |
| Average Upload | 84 Mbps |
| Superfast Available | Yes |
| Ultrafast Available | Yes |
Baker Street tube is directly below the building, five Underground lines (Bakerloo, Circle, Hammersmith & City, Jubilee, Metropolitan). Marylebone National Rail is a six-minute walk for Chiltern services to the Midlands. PTAL 6 is the maximum score in TfL's accessibility framework. There is no meaningful transport upside to do further work on, the location is already optimal.
Overall Verdict
A genuinely excellent location with a high-quality building shell, priced appropriately given the floor position and lack of balcony. Three practical considerations for a buyer: (1) factor in £20,000-£30,000 for a lease extension in the next 5-10 years, (2) understand the listed building consent process before planning any external work, (3) accept that capital growth in central London prime has been muted (6.8% over five years) and the investment case here is income + amenity, not appreciation. For an owner-occupier who values transport and central location this is a strong buy.
What to do next
- Check planning restrictions with the local authority before assuming you can extend or alter the property.
- Order a Level 2 HomeBuyer Report (or Level 3 Building Survey for older / unusual properties) before exchange.
- Verify the sold-price comparables against your offer using HM Land Registry directly.
Add Investor financial modelling
Investor reports add purchase-economics breakdown (deposit, fees, stamp duty), mortgage scenarios across LTV bands, 10-year ROI projections (conservative / base / optimistic), a structured risk register, and a pre-exchange action checklist.
Re-order this address with the next tier from propertyreportuk.comView schools, transport, planning applications, flood zones, and crime data on your interactive report map.
Important Disclaimer
This report is provided for informational purposes only. It does not constitute a formal property valuation, structural survey, or legal search. The data is sourced from publicly available databases and third-party APIs, which may contain inaccuracies or be out of date.
We strongly recommend obtaining professional advice from a qualified surveyor, solicitor, and independent financial adviser before making any property purchase or investment decision.
Report generated by PropertyReportUK. Data freshness varies by source. © 2026 PropertyReportUK.
Methodology & Glossary
Where the data comes from
| Data point | Source | Typical lag |
|---|---|---|
| Sold prices / transactions | HM Land Registry Price Paid Data | 1–3 months |
| Valuation & £/sqft | PropertyData market index + comparables | Daily |
| EPC rating | EPC Register (opendatacommunities.org) | At certificate issue (10-year validity) |
| Flood risk | Environment Agency long-term risk + live warnings | Daily for warnings; periodic for long-term risk |
| Crime | Police UK street-level data | ~2 months |
| Schools & Ofsted ratings | Get Information About Schools (GIAS) · Ofsted | ~3 months from inspection |
| Planning applications | PropertyData planning feed (council aggregator) | ~1–4 weeks |
| Listed buildings | Historic England National Heritage List | Updated quarterly |
| Demographics & deprivation | ONS Census 2021 · MHCLG IMD 2019 | Census every 10 years |
| Broadband & mobile coverage | Ofcom Connected Nations | Twice yearly |
| Sunlight & sun path | NOAA solar position algorithm (deterministic) | n/a |
| Title & ownership (Premium+) | HM Land Registry via PropertyData /title | ~24h after registration |
UK benchmarks used for comparisons
When we say "above UK average" we use these reference values, refreshed annually.
| Price per sqft (UK average, ex-London) | ~£270/sqft |
| Price per sqft (London average) | ~£770/sqft |
| Crime per 1,000 residents per month | ~28 |
| Median UK residential EPC band | D (score ~62) |
| Schools rated Good or Outstanding (UK) | ~67% |
| Gross BTL yield (UK average) | ~5.4% |
Glossary
| EPC band | Energy Performance Certificate band. A is most efficient, G is least. UK median is D. The certificate is valid for 10 years from issue. |
| £/sqft | Sale price divided by internal floor area in square feet. The cleanest way to compare properties of different sizes. Adjust mentally for floor (top-floor flats typically command +5%) and condition. |
| UPRN | Unique Property Reference Number. The 12-digit identifier Ordnance Survey assigns to every UK address. |
| LSOA | Lower Super Output Area. ONS statistical unit of around 1,000–3,000 residents used for census data and deprivation indices. |
| IMD decile | Index of Multiple Deprivation decile, 1 (most deprived) to 10 (least deprived). Compares LSOAs across England on a relative basis. |
| Conservation area | A designated area of special architectural or historic interest where extra planning rules apply (you may need extra permissions for alterations). |
| Gross yield | Annual rent ÷ purchase price × 100%. A rough cash-flow indicator that ignores costs. Net yield is more accurate but requires assumptions about voids, management and maintenance. |
| Marriage value | The uplift in property value when a leaseholder buys the freehold (or extends a lease below 80 years). Triggers a 50/50 share with the freeholder under the 1993 Act. |
| Confidence range | The valuation low / high. A wide range (e.g. ±15%) signals that comparable sales are limited or inconsistent. A narrow range (±3%) means lots of recent like-for-like evidence. |
| Section 21 | Historically the "no-fault" eviction notice. Abolished by the Renters' Rights Act 2026, which came into force on 1 May 2026. |
What we do (and don't) do
- We do: pull from authoritative UK government sources, structure the data into a buyer's checklist, generate an analyst summary using AI grounded in the actual numbers.
- We do not: physically inspect the property, run conveyancing searches, value the property for mortgage lending, or replace a chartered surveyor or solicitor.
- Always pair this report with a qualified Level 2 HomeBuyer Report (most properties) or Level 3 Building Survey (older, larger or unusual properties) before exchange.
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