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Deal WizardHMO · Property Analysis
Property analysis
Address: Chalgrove Gardens, LondonPrice: £2,250,0006 Bedroom(s)3 Bathroom(s)Analysis Date: Jul 22, 2026
ROCE: 14.9 %Tenure Type: FREEHOLDProperty Type: Semi DetachedSize: 2200 sq ft / 204 m²Risk: Low-MediumProject Time: 10 weeks

HMO Investment Analysis

Comprehensive evaluation of Chalgrove Gardens, London (N3 3PN) structured for high-yield Buy-to-HMO conversion under Barnet Council regulations.

Executive Summary

This report evaluates the commercial viability of acquiring and converting the substantial 6-bedroom detached residence at Chalgrove Gardens, N3 into a high-spec licensed HMO. Featuring robust local rental demand, excellent transport links via the Northern Line, and significant physical scale, the property presents a compelling co-living investment opportunity. Strategic layout reconfiguration and professional refurbishment will maximize compliant occupant capacity to 6-7 individuals, delivering strong cash flow and capital appreciation potential.

Acquisition Overview

Purchase Price
£2,250,000
Estimated Refurb
£75,000
Total Acquisition Cost
£2,375,000
Target LTV
65.00%
Initial Cash Invested
£862,500
Strategy
HMO Conversion

Analysis Parameters: strategy: HMO, market tier: Prime North London Zone 3/4.

Projected Rental Income (Post-Refurb)

Monthly Gross Rent
£6,300
Annual Gross Rent
£75,600
Average Room Rent (PCM)
£1,050

Rental figures are benchmarked against verified local comparable rooms in Finchley Central (N3) offering high-spec communal living and all-inclusive bills.

Projected Cashflow & Returns

Monthly Cash Flow
£1,250.00
Annual Cash Flow
£15,000.00
Gross Yield
3.4%
Net Yield
2.7%
ROCE
14.9%
ROCE: 14.9% | GrossYield: 3.4% | NetYield: 2.7% | MonthlyCashFlow: £1,250.00 | AnnualCashFlow: £15,000.00

Mortgage & Financing

Financing structure assumes commercial buy-to-let underwriting based on multi-unit rental income potential rather than single-family AST valuation.

Refinance Potential

Post-Refurb Valuation (ARV)£2,450,000Reflects commercial valuation uplift from HMO income stream.
Refinance Uplift %8.89Based on 8.89% capital growth and yield multiple.
Estimated Equity Pulled Out£129,250Available upon re-val post-licensing and full occupancy.
Capital Left in Deal£733,250Net equity committed after capital extraction.

Refinancing is highly recommended 12 months post-conversion once statutory accounts and AST track records are established.

Licensing & Compliance

Mandatory licensing is legally triggered as the proposed layout houses 6 unrelated adults sharing core facilities. Local council HMO standards must be strictly adhered to.

Amenity Standards Check (Estimated for 6-Bed HMO):

Property & Layout Analysis

Reception Room 1
Floor: Ground | Size: 18.5m² | Ceiling: 2.7m Reconfig Potential: High
Function: Communal Lounge
Pass
Reception Room 2
Floor: Ground | Size: 16.2m² | Ceiling: 2.7m Reconfig Potential: High
Function: Dining / Communal
Pass
Kitchen Breakfast Room
Floor: Ground | Size: 22.0m² | Ceiling: 2.7m Reconfig Potential: Medium
Function: Shared Kitchen
Pass
Utility Room / WC
Floor: Ground | Size: 6.8m² | Ceiling: 2.5m Reconfig Potential: Low
Function: Utility & Wash Area
Pass
Bedroom 1
Floor: First | Size: 18.0m² | Ceiling: 2.6m Reconfig Potential: None
Function: Double Bedroom
Pass
Bedroom 2
Floor: First | Size: 15.5m² | Ceiling: 2.6m Reconfig Potential: None
Function: Double Bedroom
Pass
Bedroom 3
Floor: First | Size: 14.0m² | Ceiling: 2.6m Reconfig Potential: None
Function: Double Bedroom
Pass
Bedroom 4
Floor: First | Size: 12.5m² | Ceiling: 2.6m Reconfig Potential: None
Function: Double Bedroom
Pass
Bedroom 5
Floor: Loft | Size: 24.0m² | Ceiling: 2.4m Reconfig Potential: Low
Function: Master Suite / Twin Share
Pass
Bedroom 6
Floor: First | Size: 11.0m² | Ceiling: 2.6m Reconfig Potential: Low
Function: Double Bedroom
Pass

National Minimums Check:

Capacity & Layout Options:

Option 1
5 Bed HMO
Pass

Retains massive communal spaces, lower management intensity.

Option 2
6 Bed HMO (Recommended)
Pass

Optimizes cash flow while retaining robust communal lounge and conservatory.

Option 3
7 Bed HMO (Sui Generis)
Fail

Requires planning change of use and compromises shared amenity ratios.

Max Compliant Occupant Count: 6 Adults | Recommended Layout: 6-Bed 3-Bath HMO with Separate Lounge & Conservatory.

Layout Reconfiguration Potential

Certainty of Adding Another Bedroom25.00Low certainty without major extension due to Article 4 and C4 limits.

The property already benefits from substantial existing bedrooms and spacious reception areas. Converting additional reception rooms would violate Barnet's mandatory communal space requirements for 6+ sharers.

Rough Cost: £15,000

Worthiness: Not recommended; 6 bedrooms optimize the risk-to-reward profile under C4/Sui Generis regulations.

Value Added by Additional Bedroom(s)£50,000Marginal rental uplift weighed against planning refusal risk.
Risk of Change (1-100)75.00High planning risk for over-intensification in a suburban residential estate.

Refurbishment Plan

Scope & Standard:

High Standard Co-Living Finish: Selected for professional target demographic in N3, commanding top-quartile rents (£950-£1,150 PCM per room). Includes full redecoration, electrical rewiring, upgraded fire safety system, new en-suites, and modern kitchen appliances.

Refurb Breakdown:

Fire Safety Compliance (FD30s, Alarms, Emergency Lights)£8,500Mandatory HMO certification requirement.
Kitchen Refurbishment & Appliance Upgrade£12,000Dual ovens, hobs, and dedicated storage units.
Bathroom & En-Suite Installation (3 bathrooms total)£16,500High-spec sanitaryware and tiling.
Electrical Rewiring & Data Points per Room£7,500USB sockets and hardwired ethernet/TV points.
Central Heating Upgrade & Radiator TRVs£5,000Zoned heating control for individual rooms.
Flooring & Carpets (Commercial Grade)£6,000Durable acoustic flooring and plush bedroom carpets.
Plastering & Interior Decorating£9,000Skimming, priming, and neutral contemporary paint finish.
External Landscaping & Patio Revamp£4,000Tidying rear garden and bicycle storage installation.
Contingency Fund (10%)£6,500Buffer for unforeseen structural or plumbing issues.
Total Estimated Refurbishment Cost £75,000

Refurbishment Shopping List:

Kitchen:

Bathrooms:

Fire Safety & General:

Total cost: £75,000

Refurbishment Timeline:

Weeks: 10 || Months: 2.5

Phase 1: Strip-out, Demolition & First Fix Electrics/Plumbing || 2 weeks
Phase 2: Partition Walls, Fire Safety Installation & Plastering || 3 weeks
Phase 3: Second Fix Kitchen, Bathrooms & Heating System || 3 weeks
Phase 4: Flooring, Decoration, FF&E Installation & HMO Testing || 2 weeks

Risk Level

Risk Level: 35.00 (Low-Moderate Risk; robust asset with strong demand)

Risks & Assumptions

Negotiation Points

Condition & Refurbishment Needs£50,000Outdated kitchen, carpets, and lack of HMO fire compliance require capital outlay. Probability: 85.00
Outdated Heating & Energy Efficiency£25,000Boiler upgrade and insulation improvements needed. Probability: 75.00
Market Time & Vendor Urgency£75,000Substantial detached property sitting on market; cash/proceedable buyer leverage. Probability: 80.00
HMO Planning & Licensing Uncertainty£40,000Pricing in Article 4 compliance risk. Probability: 70.00
Visual Inspection of Dump/Debris (Exterior/Garage)£20,000External garage and garden areas show accumulated builder waste visible in listing photographs. Probability: 90.00

Market Value & Demand Analysis

The local rental market in Finchley Central (N3) exhibits exceptionally robust demand for high-end professional house shares. Proximity to the Northern Line provides direct, rapid access to Central London, driving working professionals, hospital staff, and university postgraduates to seek turn-key en-suite and premium double rooms. Comparable properties in the postcode achieve between £850 and £1,200 per calendar month per room inclusive of bills.

From a capital valuation perspective, comparable semi-detached and detached 5-6 bedroom houses in Chalgrove Gardens and surrounding Chessington Estate achieve sold prices ranging from £1,470,000 to £2,250,000. Purchasing at the asking price of £2,250,000 is supported by the property's generous plot size, detached nature, and solar panel installation. Following HMO conversion and licensing, the commercial yield multiple will drive the asset valuation up to approximately £2,450,000.

Rental comparables extracted from SpareRoom and local letting data confirm that double rooms with premium finishes command an average of £1,050 PCM. With 6 fully optimized letting rooms, the projected gross annual rental income of £75,600 provides a resilient income stream insulated against single-tenant void periods, making this an exemplary co-living investment.

Investment Case Summary

Short Recommendation

Strong Buy with renegotiation target of £2,150,000. Prime Zone 3 location, excellent scale, and high co-living demand make this an ideal high-yielding HMO asset.

Detailed Recommendation

Chalgrove Gardens represents a prime asset for institutional-grade co-living conversion. The property's detached structure minimizes noise transmission issues between adjoining properties, a common pitfall in terraced HMO conversions. By implementing a £75,000 high-spec refurbishment program focused on fire safety, kitchen expansion, and en-suite enhancements, the investor captures top-tier professional rents.

Financial metrics demonstrate positive monthly cash flow of £1,250 and robust ROCE of 14.9%, supported by a conservative 65% LTV commercial mortgage. Negotiation headroom exists due to garden/garage clearance requirements and cosmetic updating needs. Execution requires strict adherence to Barnet Council HMO licensing conditions and building control sign-offs, but the long-term capital growth and yield profile make this an exceptional addition to a professional portfolio.