Longfield Street
WANDSWORTH • SW18 5RG
£800,000
£783/sqft
Nestled on this quiet, pretty street in the heart of Southfields close to Sheringdale Primary School (OFSTED - Outstanding) is this stunning two double bedroom freehold cottage with the potential to extend STPP & sold with no onward chain. Longfield Street is located between Balvernie Grove and Merton Road and ideally situated for access into Southfields Village, with its local shops, cafes and restaurants. The green open spaces of Wimbledon Park and King George's Park are just a short walk away.
2
1
1,022 sqft
Terraced House
Garden
1914 2000
High
None
Build your nest
Options ranked by potential value — A higher score means better returns. Click the development option to view full breakdown.
84/100
Basement Extension
+64% space increase
83/100
Complete Development
Loft conversion
Basement conversion
Modern, high-quality finishes throughout
+106% space increase
81/100
Loft Conversion
+41% space increase
51/100
Full House Renovation (no extensions)
Modern, high-quality finishes throughout
Analysis Summary
We've analyzed the potential for a Basement Extension at this property.
Investment Required:
£1,139,528 total (including construction and professional fees)
Value After Work:
Property worth £1,525,000 - an increase of £725,000
Expected Profit:
£385,502 net profit (34% return on investment)
What You'll Get:
- •+658 square feet of additional living space
- •+1 bedroom
- •+1 bathroom
Nestscore
84/100
Excellent
A rating of this scenario's potential based on ROI, value uplift, planning risk, and timeline.
Risk Analysis
Planning Risk
HighLikelihood of planning delays or rejection.
Planning Feasibility
Planning Assessment
Basement Extension
0%
Approval Rating
2-4 months
Estimated Approval Time
Cost Breakdown
Purchase Cost
Current property value
£800,000
70%
Build Costs
Construction, materials, labour
£339,528
30%
Total Investment£1,139,528
Includes all construction and professional fees
£516 per sq ft
Cost per sq ft
ROI Analysis
34%
Return on Investment
Current Value£800,000
Build Investment£339,528
Post-Work Value£1,525,000
Net Profit£385,502
£725,000
Value Increase